Electricity Saving Tips For Homes And Offices

How to get “Grid Connected” Solar PV Rooftop System in India – A Step by Step Procedure

By on May 2, 2017

Solar PV technology for generating electricity from solar energy has been in India since quite some time now, but for a long time, it was not economically feasible for most Indians to take benefits of. But due to a drop in the prices of solar PV in the last few years coupled with significant policy-level implementations by Government in India, now, in 2016, Solar PV technology looks quite lucrative. Who would not want to use solar energy, a free renewable resource readily available at their disposal, to effectively reduce their electricity bills and increase green footprint! With this post, we would try to make you aware of the step-by-step procedure to implement Solar PV system for your house, office or any commercial complex.

What brought in the big change?

As we discussed in one of our older posts (link), there are two ways of implementing Solar PV: “Grid Connected” and “Off Grid”. In an “Off Grid” system, your PV system is completely independent and is disconnected from your electricity supply (or your electricity distribution company), but in a “Grid Connected” system, your PV system is connected to your electricity supply (or your electricity distribution company).

The main difference between the two is storage. In an “Off Grid” system, you need batteries to store electricity. But in a “Grid Connected” system, you do not need batteries as whatever electricity is produced through the system, it can be sold to your electricity distribution company (or electricity-supply company). Batteries are a big cost component in the “Off Grid” system which makes the latter expensive. And not just expensive, but inefficient as well (because batteries inherently loose electricity/energy).

Now, you might wonder – why would your electricity distribution company (a company that makes money by selling you electricity) want to buy electricity from you? Well, this is where the government comes in and the policy introduced by the government helps. India has severe electricity shortage in several parts of the country. We need electricity not only to cover the shortage, but also for a number of other infrastructural requirements. Sunlight is a free resource, and fortunately, it’s plentiful in our country. Thus, to make good use of the free resource, i.e. solar energy, the Government has started implementing policies which allow each and every individual house or building that has plenty of open space to become a producer of electricity. So, it’s due to the Government’s mandate that your electricity distribution company has to buy electricity produced by your own system.

Because of such policy implementations, you can now have “Grid Connected” Solar PV systems that are quite economical (no battery costs).

How does the new policy work?

In every discussion related to “Grid Connected” Solar PV system, you shall hear a lot of these two terms: “Net-Metering” or “Gross Metering”. Let’s take look at both of these:

Net-Metering: In this system, you have a single new bi-directional meter. When you consume electricity from the grid (or your electricity supply), the meter readings will move forward; but, when you produce electricity and send it to the grid, the meter readings shall move backward. Suppose you use 10 units of electricity in a day and produce 8 units, your meter will show a reading of 2 units. And if you use 10 units of electricity and produce 12 units, then your meter will show -2 units. Your bill at the end of month will be based on net units consumed/produced. If you generate extra electricity in any month, the surplus is carried over to the next month and netted. At the end of a year, if your total production is more that what you consumed, then you will get paid for the next surplus electricity produced at the cost decided by your state’s electricity regulatory commission.

Gross-Metering: In this system, there are two meters: one measures your electricity consumption and the other measures your electricity production. Consequently, you get two different bills: one for consumption and other for production. There is no change in the way your consumption is billed (as it happens today), but you get paid separately for the electricity you produce. Again, the cost of electricity that you are paid is decided by the state’s electricity regulatory commission.

How do the two differ? If you look at the way electricity is priced (check domestic tariff slabs), the price of electricity is lower when consumption is less and it is higher when the consumption is more. When you ‘net’ your consumption, you don’t get a fixed cost for your electricity production. The price that you get varies, based on your consumption/production, whereas in case of Gross Metering, you get a fixed price for all the electricity you produce.

Is Grid Connected System good for everyone?

Although the policy is now available in most states in India, but if you reside in a location which experiences a lot of power cuts, then a “Grid Connected” system is NOT good for you. The reason is – when you have a “Grid Connected” system, you have to put all the electricity that you produce onto the grid. But, during power cuts, you essentially get disconnected from the grid, which is why your system should NOT put electricity on the grid. On such occasions, you need a battery backup to store the electricity that you generate.

Before implementing a solution, you need to assess your power cuts and accordingly decide if putting a “Grid Connected” system works for you or not. Because if power cuts are long and frequent, you would either waste electricity or you would have to figure out a way to store it in batteries.

Which states/UTs have this policy implemented?

As of date, 30 states and UTs in India have implemented the policy to support “Grid Connected” Solar PV. For now, we’ve just put in the links to their policy and tariff documents (as sourced from MNRE website) in the following table, but we will try to explain each of them in our future posts.

Sl. No.StatesState Policy for Grid Connected Solar RooftopSERC Regulatory/ Tariff Order
1Andhra PradeshAndhra Pradesh Solar Policy 2015APERC Order 2010 APERC Amendment 2010Andhra Pradesh Amendment Net Metering
2AssamAssam Electricity Regulatory Commission’s Grid Interactive Solar PV Regulations 2015 dated 02.05.2015
3BiharBihar State Electricity Regulatory Commissions Net-metering Regulation dated 7th July, 2015
4ChhattisgarhChhattisgarh Solar Energy Policy 2012-2017Chhattisgarh Tariff Order for procurement of power from Rooftop PV Solar Power Projects by distribution licensees of State Regulations, 2013 Order for Connectivity and Distribution Charges for Solar Rooftop PV Projects – Issued on 29/10/2014
5Delhi—-Delhi Electricity Regulatory Commission (Net Metering for Renewable Energy) Regulations, 2014 Guidelines under DERC (Net Metering for Renewable Energy) Regulations, 2014Brief Note on Guidelines under DERC (Net Metering for Renewable Energy) Regulations, 2014
6GujaratGujarat Solar Power Policy 2015Gujarat Solar Tariff Order 2012
7HaryanaHaryana Solar Policy 2014Order for SPV Power Plants for Building/Areas of Haryana GovernmentRegulations for the Grid Connected Solar Rooftop Photovoltaic System
8Himachal PradeshHimachal Pradesh Solar Power PolicyHimachal Pradesh Electricity Regulatory Commission Notification 2015
9JharkhandJharkhand Solar Power Policy 2015
10KarnatakaKarnataka Solar Policy 2014-2021Karnataka Tariff Final Order 09.10.2013
11KeralaKerala Solar Policy 2013Kerala KERC Order 10.06.2014
12Madhya PradeshMadhya Pradesh Electricity Regulatory Commission (Grid connected Net Metering) Regulations, 2015
13MaharashtraMaharashtra Electricity Regulatory Commission (Net Metering for Roof-top Solar Photo Voltaic Systems) Regulations, 2015
14ManipurManipur Solar Policy 2014
15MeghalayaMeghalaya State Electricity Regulatory Commission Notification 2015
16OrissaNet Metering/Bi-Directional Metering & their Connectivity for Rooftop Solar PV Projects Dated 26.11.2014
17PunjabPunjab Solar Rooftop Policy 2014Punjab State Electricity Regulatory Commission Notification,7th May, 2015
18RajasthanRajasthan Solar Energy Policy, 2014Connectivity and Net Metering for Grid Interactive Rooftop and Solar Systems, Regulations, 2015
19Tamil NaduTamil Nadu Solar Energy Policy 2012Tamil Nadu TNERC Order 7.3.2013Tamil Nadu TNERC Amendment Order 31.07.2013
20TelanganaTelangana Solar Power Policy 2015
21Uttar PradeshUttar Pradesh Rooftop Solar Photovoltaic Power Plant Policy, 2014Uttar Pradesh Electricity Regulatory Commission (Rooftop Solar PV Grid Interactive Systems Gross / Net Metering) Regulations, 2015
22UttarakhandUttarakhand Solar Policy 2013Uttarakhand Tariff Order 2013
23West BengalWest Bengal Solar Policy 2012West Bengal WBERC Notification 2013
24Andaman and NicobarJoint Electricity Regulatory Commission for the state of Goa and Union Territories (Solar Power – Grid Connected Ground Mounted and Solar Rooftop and Metering Regulations – 2014) and Solar Power Tariff
26Dadar and Nagar Haveli
27Daman and Diu
29PondicherryPuducherry Solar Energy Policy 2015(notified on 01-03.2016)

How do you size the Solar PV system?

Now that you have figured out whether your state has a Net-Metering or Gross Metering policy, the next thing is to figure out the size of the Solar PV system that you can put.

One of the biggest challenges with an “Off Grid” system is that your appliances are connected to the solar PV system. So, you have to figure out your appliances wattages, daily usage etc. to calculate the right size of your Solar PV system. This entire calculation can be somewhat complex and confusing.

With a “Grid Connected” system, the calculation is extremely simple. You just have to take your electricity bill and look up the value called: “Sanctioned Load” or “Connected Load”. Depending on your state’s policy, you can install a system equivalent to 100% to 150% of the connected load value that you have on your bill. So, for instance, if your connected load is 10 kW, then in some places you can install a maximum of 10 kW solar PV system whereas in other places you can install upto 15 kW. But, in no case can you exceed 150% of the connected load for a “Grid Connected” system.

Shadow Analysis: The next challenge that you have to tackle is: shadow analysis. To get the optimum output from a Solar PV system, you need to ensure that you have enough shadow-free area that can hold the system. Typically (based on current levels of efficiency of solar panels), you need a shadow-free area of 90-100 sq ft to install 1 kW of Solar Panels. The panels have to face south and should be inclined at 15-18 degrees (depending on the city).

You have to make sure that:

  1. There is no external body (like buildings, trees) that casts shadow on panels during the day.
  2. Panels are placed in such a way that they get maximum sunshine throughout the day at the right angles.

Shadow Analysis can help you calculate the rooftop area that can be utilized and based on that (using 90-100 sq ft per 1 kWp) you can calculate the maximum size solar PV system that you can install. As mentioned earlier, you cannot exceed more than 100%-150% (depending on state) of the sanctioned load. Please take help of your Solar PV installer to get the shadow analysis done accurately. There are software available that can be used to do this analysis too (they can predict shadows depending on seasons and location). Do not go blindly by what an installer says; you may have to pay some money upfront to get this done, but then it will have better outcomes in the long run. Here is a video showing impact of shadow on power generation:




Can your roof hold the panels?

Typically solar panels are quite light, but once you have decided the place to install solar PV, you need to make sure that the roof should be able to handle the solar PV system. If you have asbestos sheets that are old, you may want to change them with tin sheets that are long-lasting. Your roof should be sturdy enough to hold the panels. If your roof is quite high and there is a lot of wind, you need to understand the setup with your installer to make sure that the installation is safe enough. If needed, you shall have to take permissions from your municipal corporation to make sure you do not miss any safety parameters.

How to Choose the right brand for the Panel?

Now that you have figured out the right size of your solar PV, you have to start selecting individual components of your Solar PV system. When you contact a company for Solar PV system installation, in most cases you won’t find them to be manufacturers of the components of the system, they would just be installers who help you select the right components. But then it’s important to be aware of the various brands that are available for those components.

Consider this for an analogy: just like cars have dealers and manufacturers, where a dealer can have dealership of one or many brands of cars, a system installer for Solar PV will have tie-ups with various brands of equipment and they will just bring in and install the system in your premise depending on what you choose.

The first thing to choose is the panels. Just like while buying a car, you get European (BMW, Audi, Volkswagen), Japanese (Honda, Toyota), Indian (Tata, Mahindra) and Chinese products, similarly, in Solar Panels, you can get various brands from various countries. In case of Solar PV, the global market leaders are the brands of China.

As per the data available on Wikipedia, top international brands based on capacity of installation, and based on our information from the industry are:

  • First Solar (Malaysia)
  • Trina (China)
  • Canadian Solar (Canada)
  • Sharp (Japan)

If you are looking for familiar brands (names) then you can look at the likes of:

  • Mitsubishi
  • Panasonic
  • Bosch

However, if you are looking for Subsidy on your solar PV installation, then you will have to go for panels that are Made in India. Based on information from MNRE (link), manufacturers/brands that lead the solar PV manufacturing market are:

  • Vikram Solar
  • Waaree Solar
  • Goldi Green Technologies
  • Tata Power Solar

Please note that among the Indian brands, Vikram Solar is the only one that appears in the global list on Wikipedia, and Waaree Solar has similar capacities.

What is the difference among these brands? Top international brands will have more efficient panels giving more output in less area. So, you can install, say, a 1 kWp system in 90 sq ft with an international top brand, whereas with a regular Indian brand you might get 1 kWp in 100 sq ft space. There may be some additional advantages of lower maintenance with international brands. But then you do not get subsidies if you go for an international brand.

Before buying a panel, make sure that either the brand is a top international brand, or it is an MNRE-approved channel partner. To get the list of MNRE-approved manufacturers, you can go on this link: Manufacturers.

Your panel manufacturer should give you a performance warranty on the output of the solar panels. Typically performance warranties are for 90% of the nominal power output in first 10 years and 80% for 25 years. This means that the panels will give at least 90% of the rated power output for first 10 years and at least 80% for 25 years. You should also get warranties on the workmanship.

How to choose the right brand for Inverter?

Just like panels, there are multiple brands of Inverters (from various areas) available in India. However, in case of inverters, your subsidy does not depend on the make of the inverter; you can buy any inverter which meets MNRE specifications and get subsidy.

Top international brands of solar inverter (available in India) are:

  • SMA Solar
  • ABB
  • Schneider
  • Fronius
  • Huawei

Indian manufacturers of Inverters are also into manufacturing Solar Inverters, so you can also get:

  • Su-kam
  • Luminous

While selecting an inverter, please make sure that the efficiency of the inverter (to convert DC to AC) is high. International brands have energy efficiency as high as 98%. Which means, almost all the DC energy that your PV panel generates gets converted to useful AC energy.

Inverters these days also have in-built software solutions to manage and monitor electricity generation from the solar panels. So. make sure that you get one that has the capability. If you go for subsidy, then most of the basic requirements (including the software) are covered in the requirements by MNRE.

Depending on the type of your connection, you also have to make sure that it is a single phase inverter or three phase inverter.

A good heat sink along with use of electrolytic capacitors can make a good inverter, almost a fit-and-forget kind of system which you need not worry about for years.

How to choose other accessories?

Other accessories needed for a Solar PV Grid Connected system are:

  • AJB (Array Junction Boxes) – for protection as there is no earthing.
  • AC and DC distribution boxes – for protection as there is no earthing.
  • DC Cables

While buying these, just make sure that you go for good brands like Havells, Finolex, Polycab or any top Indian brand that makes products as per BIS standards.

How to choose the right implementation partner?

After you have chosen the right set of products that you need, choose an implementation partner or system integrator that can provide you with the kind of things you need. As of date, there are 9000 channel partners listed by MNRE that can do system implementation for you. A list of the same is available on this MNRE link. MNRE has categorized the channel partners into tiers based on their financial capability. So, if you look at the list in the link mentioned above, you will find categories like 1A, 1B, 2A, 2B, 3A, 3B written against the names of channel partners. This category is based on the financial strength of the company. Although, it is difficult to comment as to who can get the work done properly, this categorization can help you narrow your choices down a bit. Make sure that you ask the right questions to the system integrator to understand what you are getting. Also, understand the warranties that you get with the system integrator.

How to get Subsidies on Solar PV Rooftop?

As per the MNRE notice, CFA (Central Finance Assistance) or subsidy is available for Solar Rooftop PV implementations. The CFA is 30% of the benchmark cost for general category states/UTs and 70% of the benchmark cost for North Eastern states including Sikkim, Jammu and Kashmir, Uttarakhand, Himachal Pradesh, Lakshadweep and Andaman and Nicobar Islands. The benchmark cost and CFA levels are revised by MNRE periodically.

The present benchmark costs as fixed by MNRE are – Rs 100/Wp for projects upto 100 kWp and Rs 90/Wp for projects between 100 kWp – 500 kWp. Please note, this scheme is currently available only upto 500 kWp projects.

The subsidy is available only to these categories:

  • Residential: All types of residential buildings.
  • Institutional: Schools, health institutions including medical colleges and hospitals, educational institutes (both public and private), R&D institutions, etc.
  • Government Buildings: Both Central and State Government Buildings.
  • Social Sector: Community Center, Welfare homes, old age homes, orphanages, etc.

How do you apply for Subsidy? The process of application for subsidy is quite straightforward. First thing you need to do is contact your State Nodal Agency.

MNRE has set up a Nodal Agency (or Energy Development Agency) in every state, for instance, in Maharashtra, it is MEDA (Maharashtra Energy Development Agency), in Andhra Pradesh it is NEDCAP (Non-Conventional Energy Development Corporation of Andhra Pradesh (NEDCAP) Ltd.). The list of all State Nodal Agencies and their contact address/phone/website is available on this link on MNRE website: http://mnre.gov.in/related-links/contact-us/state-nodel-agencies/

To get subsidy, you have to apply for it with State Nodal Agency with all the relevant details about the project. The details include all technical and financial aspects of the project (a sample form available on this link). You must take help from your system integrator to fill in all the details (you will get all the technical data about panels, inverters, etc). Once you fill in appropriate details, you need to put in an application with the State Nodal Agency. The agency will evaluate the proposals and estimate the level of subsidy that can be provided to a project. After nodal agency evaluation, the project is forwarded to MNRE for final consideration and approval.

Note: If you are planning to get a subsidy, your project should not start execution till there is approval from nodal agency. But then you should also not wait for the final subsidy to be disbursed as it can take quite a lot of time. So your project execution starts after nodal agency approval and before MNRE makes final decision.

Few Important Points regarding Subsidy

There are a few important points that one should be aware of before thinking about subsidy:

  • Although the CFA is stated as 30%, it keeps changing and for individual projects, the level of CFA is determined by State Nodal Agency and approved by MNRE. So it may not be 30% in reality.
  • There is a long queue for getting subsidy in almost every state. In fact in many states not even a single penny of subsidy has been disbursed for quite some time. MNRE specifically states that people should not wait for subsidy before implementing a project as you never know how long it will take.
  • As there is a queue, in many places there are agents who claim that they can get you subsidy. Please deal with them at your own choice.
  • Also as there is a long queue, MNRE uses a priority list to make final approval. All social sector projects, government projects and institutional projects may take priority over a project from a rich and affluent upper middle class residential society.
  • As mentioned earlier, your panels have to be Made in India to get subsidy. You may compromise a bit on efficiency in such a case. You have to determine if taking a subsidy or getting more output works for you.

Is there any other financial assistance?

To provide financial support to Solar Rooftop projects, government has also initiated few programs that can be availed to fund their solar PV projects. Some of these programs include:

  1. IREDA (or Indian Renewable Energy Development Agency) can provide loans to system integrators at a concessional rate of 9.9% to 10.75%
  2. Banks can extend the same rate available for home loan as home improvement loan to help homeowners install a solar PV plant. Most of the Public Sector Banks have issued notices to their branches for the same.

How about Private, Commercial and Industrial Buildings?

If you have a private, commercial or industrial building and you want to set up a solar PV rooftop system, then you are not eligible for Subsidy. But, you are eligible for Accelerated Depreciation Benefits. The accelerated depreciation available currently is 80% in a year (there are talks about it coming down to 40%).

In general, for any industry, typically 15% depreciation can be claimed for any capital expense (like plants and machinery), which means if you make capital investment in any year, you can claim 15% depreciation in value to claim tax benefit. However, in case of Solar PV rooftop, the same is 80% in a year. Which means, in approx 4 years you completely depreciate the whole value of the project.

What is the maintenance required for such a system?

As batteries are eliminated, the maintenance required for such a system is quite less. The chief maintenance activity would be to clean the solar panels regularly so that dust does not accumulate on them. The other electrical components may have some wear and tear on regular basis (depending on the quality of the product) and would need fixes. To give a rough idea, maintenance cost is typically assumed to be 1%. In general, it is recommended to go for high quality components so that you just fit and forget the system and it keeps generating electricity for you.

Do I need approvals from my electricity distribution company?

You certainly need to take approvals from your electricity distribution company. This is because they are the ones who shall purchase electricity generated by your system. Before you start your project, you have to submit a form with your electricity distribution company (which can be done either online or offline). In the form, you will have to list out all the technical details of your PV project, along with your electricity bills and other relevant documents. The electricity distribution company will also do their feasibility study before you go ahead and install the system.

Once the system is installed, the electricity distribution company will sign an agreement with you which is called a “Power Purchase Agreement” or PPA. This agreement will lay out the terms and conditions at which the electricity distribution company will purchase electricity from you. This should be in line with the terms setup by the State Electricity Regulatory Commission and will lay down the terms of purchase.

Once everything is set up (from the system’s perspective) and the PPAs are signed, your electricity distribution company will install the “Net Meter” in your premise. Please note that your old meter may give way to this new meter (if you have a net-metering arrangement). If you have gross metering, then you will get an additional meter. Your system will start functioning once everything is set and connected.

How does the cost and economics work out?

Just like any other appliance, you will get products with varying costs in the market for Solar PV as well. But then just like any other appliance, you have to be aware of the quality of the product so that your expectations are matched with the product’s performance. Tier 1 manufacturers (the ones listed above on this page) would be expensive, but their products will perform better over a longer period, whereas the cheaper ones may not perform so well over time. The benchmark costs of Solar PV rooftop “Grid Connected” system has varied between Rs 75,000/kWp and Rs 1,00,000/kWp in the last few years. In fact, if you check the prices right now, the quotations that you would get would vary between Rs 60,000/kWp and Rs 90,000/kWp (for decent quality systems).

If your connected load is 5 kW and you have enough space to install a 5 kWp system, then it would cost roughly Rs 3,75,000. Typically a 1 kWp panel would generate about 1300-1400 units of electricity per year (it will be more on days with abundant light and less on days with low light). So a 5 kWp system would offset about 6500 units from your electricity bill every year. If your average per unit cost is Rs 7 then that works out to savings of Rs 45,500 per year. At Rs 7 per unit, you will recover cost of project in 8 years (without subsidy) and in 5 years (with 30% subsidy). If the cost per unit is more, then the cost recovery will be faster.


The option of Solar PV Rooftop “Grid Connected” system looks quite lucrative for places with fairly regular and continuous supply of electricity. A majority of such places in the country are cities with higher tariffs and reliable electricity supply. It can be a great method to not only reduce electricity bills, but also the generated power can be routed to places which have a shortage of electricity. If you do have one such place in mind where you can install the system, give solar PV rooftop “Grid Connected” system a thought.

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सर मे राजस्थान मे झालावाड से हूं ग्रिड सिस्टम लगाना चाहता हूं मेरे पास 35*30की छत है पुरे ग्रिड सिस्टम के जानकारी कीमत व राज.राज्य विधुत वितरण निगम लिमिटेड उसे खरिदेगा अथवा नही की सम्पुर्ण जानकारी एवम इसके लिये किन लोगो से सम्पर्क करना पडेगा सरकार की पोलिसी ( राजस्थान सरकार ) की जानकारी हिन्दी मे उपलब्ध करवाये तो उचित रहैगा


Home solar sistam prices and who to works this products


AT my location indirect irradiation is 1.70 and direct irradiation is about 5.60 kWh/m2/day.
How much units of electricity we got per day from direct and indirect irradiation.
please give me full explaination for indirect and direct irradiation.

Abhishek Jain (Mod)

You can check this link: http://www.ezysolare.com/blog/knowledge-center/how-to-calculate-solar-energy-generation/

They have given a good explaination.


3 kw सोलर प्लांट लगाने मे सबसिडी कितना मिलेगा
कृप्या हिन्दी मे reply करे


how much units a solar pv can gen in rajasthan,where 5.70 kw/m2/day is shown by direct irrediance.

Abhishek Jain (Mod)

Hi Lalit,

Irradiance is measured in kWh/sqm/day .... and 1 kWh is 1 unit. So 5.7 kWh/sqm/day means you will get 5.7 units/sqm/day on a horizontal surface. However, most panels are put in inclined position (usually facing south), which increases the output by about 15%. So it would become 5.7x1.15 = 6.55 units/sqm/day. Now 1 kWp panel occupy about 6.6 sqm, so it would mean 6.55 x 6.6 = 43.26 kWh/sqm/day is the amount of energy that can possibly be generated. But the efficiency of panels available in market is just about 16%. So that means the output would be 43.26 x 0.16 = 6.92 kWh/kWp/day. This is the output of the panels, but then there will be about 15-20% losses due to other factors like shadow on panels, losses in wires and inverters, quality of panels, surrounding high temperature. So it would amount to 6.92 x 0.8 = 5.5 units/kWp/day.


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Company Name - Rotate Lifestyles Private Limited.


I stay in munirka in delhi and have 6KW sanctioned load. I want to install 6KW solar on grid system on my roof. My number is 9811804351 and my email is [email protected] If u can help pls contact me.


want to install 5kw plant on my roof top, space is not an issue, with mono plates for on grid system, pls provide installers/suppliers in Lucknow, with quotes.


I want buy Solor panel sym


Hello Abhishek, Recently my APC make 1000VA home inverter which used to provide power to light and fans became faulty. I have replaced it with new Su-Kam Hybrid Brainy Eco 1600/24V inverter only yesterday. This Su-Kam inverter has a capacity to take feed from 250Wp X up to 4 solar panels all in parallel. After a logistic and other delays my 5 KW Grid-Tie Solar generator is being installed now. PV Array is 250Wp X 20 No's = 5KW. I was thinking to take a parallel connection from 4 No's solar panel out of 20 No's and feed it to my newly bought home inverter. I got a rude shock when Solar Installer told me that they make 2 set of string of 10 No's Solar Panel in series whose output goes to Grid-Tie Inverter. Therefore 4 no's of separate solar panels are not available for connection to feed home inverter as all solar panels are connected in series. Is there any way I could feed my home inverter from my existing 20 No's solar panels which is Grid Tied? My place is prone to load shedding. With no electric power from utility, my Grid-Tied become useless. Therefore, I was keen to take a tap from 4 No's of solar panel from 20 No's. Will I have to buy additional separate 4 No's 250 Wp solar panels? Appreciate your guidance.

Abhishek Jain (Mod)

Hello Mr Dabhade,

When you already have a grid tied inverter, you do not need another off grid solar inverter. You can just have a normal inverter that can charge your battery. When the grid is available, the energy generated will be used to charge your batteries through your regular connection (just like a normal inverter does). Some or all of it will be netted off based on your panels’ power generation and your electricity consumption. And you can use teh charged batteries when the grid is not working. I do not understand a reason for having a separate solar inverter.

So to your questions:

1) Your grid tied inverter is already supplying electricity to your home and you can use a normal inverter to charge you batteries (from your existing solar panels). You do not need a solar inverter.

2) You need not buy additional solar panels. Just connect a “regular” inverter in your house.

The only situation when it will not charge is when the gird is not providing power. In such cases grid tied inverters are shut off so that they do not provide power back to the grid. But you cannot connect those panels to an off-grid inverter because in ideal case, the power generated should not be moving in the system (in grid tied inverter), else it can result in electric shocks for the personel working to fix the power grid.


want to install 5kw plant on my roof top, space is not an issue, with mono plates for on grid system, pls provide installers/suppliers in Lucknow, with quotes.


sir mai 1kw ka solar insttlation ke liye quatation chahiye please


please contact me 9819271891


Hello Sir,
1 KW how much price.


can you provide wire diagram in between solar inverter, gird and load?


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I wants the following :
1. mere pas lagbhag 15 beegha jameen hai, us par main solar hub lagana chahata hun, is it possible. (Nagaur, Rajasthan)
2. main ek university men service karta hun kya yahan office chat par ya residential area ke chat par ya open area men solar plant laga sakte hain, Ladnun nagaur men.

Send me full detail plz


Call me at 7017577955,, lets talk in detail


Contact me on 9999055214 for full information


It's really a great help and guidance.I need to have off grid solarPV system in my school in MP .I need to have assistance


Dear Madhu

Kindly call us on 8684810503 lets talk in details

Darel Marshal Falcao

Call me on 7517487953. Lets talk in detail


Call me at 7017577955,, lets talk in detail


mere cold storage hai aur mai solar painal lawana chahta hu..agar ho sake to ap hame ek praposel bana kar bhej dijiye.

Darel Marshal Falcao

Call me on 7517487953. Lets talk in detail


Call me at 7017577955,, lets talk in detail


Connect me on 9999055214


for any queries regarding solar system
please contact 8059121997
shivam gaur
sunrize solar haryana


I want to install 3kilo watt system. So give me rates. I am from rajula Gujarat.


my place in surat I'm interested in solar plant call me WhatsApp no..9173647335


Plz sent the cost of solar grid I am interested to purchase of my project.


We are interested in 50000 KW solar system at Mumbai. Please send details of cost and installalation.
My mobile number 9223186505

Solvector infrastructure Pvt Ltd

We are solar installer, we serve all over India with a reputed product like Panasonic Vikram waree su-kam abb inverter Delta etc with a lower price rate with better service
Contact us


Send me your cost for installation of 1 kw rooftop plant . I am from Surat.


My place in Surat, I am a intrsted in a solar plant, please call me,whattap number=8490808956


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AURA RENEWABLE ENERGY PVT. LTD - The Renewable Energy Leader and OneStop Solar Shop of Diverse Solar Products & Services like Solar Panel, Inverters, Solar Street Lights, Solar AC, Solar Fans, Biodiesel, Solar Power Plant with UPS, Hot Water System, Solar Water Pumps, Solar Tracker, Wind Turbines. Undertake Solar Plant Installation, Erection Commissioning Maintenance, Solar Rooftop Designing. - The Solar System Manufacturer, Supplier, OEM, Solar EPC Company in India SOLAR FRANCHISE INDIA - BECOME HIGH END BRAND AURA ENERGY FRANCHISEE - INDIAN SOLAR COMPANY PROVIDING SOLAR PROJECT EPC SOLUTION IN INDIA
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Is it true that
AS per MNRE for synchronizing of the solar power with Grid , we must have
1. The consumer having connectivity with grid as 1-phase should have solar Evacuation Voltage also at 1-phase
2. The consumer having connectivity with Gris as 3-phase should have solar Evacuation Voltage also at 3-phase

Abhishek Jain (Mod)

That is true.


Please contact me. My Home is in delhi - Subhash Nagar. i have open roof about 500 sq.ft.
i want to install grid connected solar pv roof top. My requirement is 5 - 6 KW.
Please contact me urgently on whatsapp -9910906649


It would be better if you mentioned power backup option

कामेंद्र तिवारी

बहुत ही बढिया जानकारी से भरा लेख है । यह बहुत बहुत उपयोगी व महत्वपूर्ण है।

amar kant sharma

Please contact me. My Home is in delhi - najafgarh Prem Nagar. i have open roof about 1000 sq.ft.
i want to install grid connected solar pv roof top. My requirement is min 10KW to 15 kw.
Please contact me urgently on whatsapp - 9599614329
Quote me price

krishna shrivastava

share your mail id or send me details on my whats up 7415324645


Please feel free to contact me at +919867378054 for any of your solar system installation requirements.


I am interested to know about the installation of solar plant at my home.


hello sir,
we provide complete turnkey solar power solution , request you to please contact us @ 7758811194


Please feel free to contact me at +919867378054 for any of your solar system installation requirements.

Dipangkar Baruah

Hi I am interested in going for a on grid system in upper Assam.
Please provide me the investment required for every kwh.


Please feel free to contact me at +919867378054 for any of your solar system installation requirements.


What cost of installation PV on 30 bigha??


let me know at [email protected]! We will provide best support!

Col Deepak Joshi

A very informative article. We are in the planning stages of installing a solar power plant in our Society in Haryana. Your article cleared a number of grey areas. Thank you for such an informative article.


Dear Col Deepak Joshi,

Thanks for showing interest in Solar energy! Before you consider installation of solar system, you must also consider what you exactly want in that! Is it just low cost installation or Quality, Performance. Reliability, Warranty, Less maintenance! In low cost, I have only witnesses people getting frustration and agony! My partner is an air force veteran. We support best brands in the world which are made in USA, JAPAN and Germany. Allow us to provide support for your project!


Could you please contact me.My number 9958435869

Alternate power technology

We are solar installer. In all over India with convenient price please contact us 8979671228


I want to set up solar power plant at my home in Tamil nadu .My bi-monthly elctricity bill 1500.00
any information regarding this would be higly appreciated.
Thank You.
whatapp + 971504634480

Abhishek Jain (Mod)

Hi Adam,

The whole article written above is complete information for installing a solar power plant. I would suggest that you go through it and then ask for additional information on things that you find complicated.


Please feel free to contact us for any information related Installing & Commissioning Grid connected roof top plant for your Domestic, Industries, Schools and colleges. Contact on our e-mail id: [email protected]


Nice work to the author. I like the fact you emphasise on quality of international brands! But in my experience CFA of subsidy never arrives as the process of getting one is too complicated! And only few type of customers can even apply for it! BTW I have never seen anyone getting the subsidy and the subsidy payment time is also about 5 years!
Anyhow, we only support the best international brands for the system quality and technology! Only purest form of monocrystalline panels for best results! There are multiple ways to claim tax benefits which in turn will save more than 15% subsidy! One can even claim depreciation upto 80%. The ROI period is typically 5 years for our products!
We suggest our customers to demand better solar! I myself have worked at many silicon chip manufacturing factories in USA, JAPAN, TAIWAN, KOREA and SINGAPORE to know the real meaning of technology and quality! No system made in China or India can beat the performance of our least quality system! Yet the indian market is only looking for low price and in turn low quality! We are here to change it! Reach us out for more info: +91 7259011326 or [email protected]! I really appreciate your inputs to resolve so many customer issues!


your description of Net metering is wrong. it shows different parameters like IN( draen from the Grid) EX ( exported to the grid from solar) , N ( net unit)
for example,
if you use 8 units from the Grid , it shows as IN 8 and if you produce 6 units it shows as EX 6 and Net is shown as 2.

(I have net metering installed)


By the way this info is helping me in installing 5kw solar rooftop pv system at my home. Till now I am having no doubt which I can't get cleared from this place. Great efforts


Very helpful post. The whole website is very very helpful. Thanx the creators for creating this tremendously informative website when it is extremely difficult to gain knowledge about solar system installation in indian conditions at one place from internet.

Abhishek Jain (Mod)

Hi Ashish,

We are glad that you found the website useful.


I want to set up solar power plant at my home. any information regarding this would be higly appreciated.
Thank You.
Contact - 8758912263


We are into Solar System Integrator based out of Bangalore and deal in both the solar in off grid and On grid power project as well as solar Street light, solar water pumping system, Please either call us or whatsap on 9738189157


We are solar power Installers in AP and Telangana. If any body reduce your power bills for domestic,industries,schools and colleges. Please contact me
Bujji vutla
[email protected]


We Provide Complete Solutions on Power Generation through Renewable Energy, Solar Panel Energy and Roof Top Solar Power Plants & Systems.
Contact us : solarpowerdl @gmail.com


I would like to have grid connected 3Kw solar electricity system installed - please send me a quote

Shivanshu Verma

Hi Bipin,

We at We Solar Solutions Pvt. Ltd. provide provide the best set up for Solar power units (in residential sector).
Kindly share your contact number or email id so that we can help you with your requirement.

Kind Regards
Shivanshu Verma

Alternate power technology

Sir our company works for solar panels erection in all over India. If you interested then contact us 8979671228


Please provide your details my mail id [email protected] contact me at 9701009993

Alternate power technology

Our company works for solar panels erection. We provide a convenient price as well as better service, and branded module as per customer choice. If any one interested then please contact us
Contact no. 8979671228
[email protected]

Alternate power technology

Our company works for solar panels erection. We provide a convenient price as well as better service, and branded module as per customer choice. If any one interested then please contact us
Contact no. 8979671228
[email protected]

Thank you


sir can you mail me on [email protected] I will send you the quotation

Alternate power technology

Our company works for solar panels erection. We provide a convenient price as well as better service, and branded module as per customer choice. If any one interested then please contact us
Contact no. 8979671228
[email protected]

Thank you

Kranti Solar Enterprises

Can I run all my electrical appliances including 2 nos. of 1.5 ton AC with 5KW grid-connected rooftop system? I have 5kw sanctioned load for my house in which I have 2 nos. of 1.5 ton 3 star AC. I wanna have 5kw grid-connected rooftop system. Please make me understand what should I do?

Abhishek Jain (Mod)

You can run any number of appliances on grid connected solar. This is because whatever extra you need will be provided by the grid.


2:50 pmMay 25, 2017
rahul pareek
Hello all
Greetings for the day.
solar energy is the need of the future. entrepreneur with a great vision can give a boost of green energy to serve the mankind.we have a blended mix of technology embedded in a world class solar panel made with Thin- film technology ( CdTe).
The electronic is reliable -40° +110°C , with batteries 36Wh and DMS balancer by Samsung, output limited to 8A peak, 12Vdc and USB 5Vdc.
Calyxo solar panel 3+3mm glass thick, 1200x600mm 65Wp.
the Solar panel with integrated battery is a champion in all solar industry and among competitors, no other company can offer you such a product. Its, Unique and exclusive.
Indicatively We offer:
-German CdTe NOMINAL 75Wp solar panel
-25 years of warranty
-made out of a 2x3mm glasses glued to a sandwich
-walkable glass ( means you can walk over this panel and it doesn't break)
-the rear-embedded and sealed electronics is driving and protecting
the Li-ion battery. ( IP 67 protection- that means if you put the mechanism even into water it's safe )
-battery's bank NOMINAL size is 72Wh while 10 years rated 40Wh 12Volts
the PV-panel can be hosting up to 15 LiPo-batteries for a total of 144Wh. The device taking the 55Vdc from Calyxo's panel is a battery charger and stabilizer. The battery charger section can host up to 15 rechargeable batteries model 18650. Such batteries are hand-pluggable in or out. 4 batteries are factory plugged in. 11 more can be added additionally.
The battery bank is mounted on the back to the panel and is metal
protected. It has 2 LED diodes (green and red) telling the status to
the charge and to the load. If there is too much load or a short you
have to clean up or it goes to red. If so, you have to disconnect and
reconnect with less load.
The solar panel embedded battery bank plugs to any cigarette lighter plug.
The photovoltaic panel feeds 75Wp, therefore the battery bank is fully
charged in 1 hour. You must keep adding external battery banks (the
car battery or a number of USB battery bank) or lamps with battery to
store more energy.
There is an incredible very long list of devices all provided with the
12Volts cigarette lighter plug. Such list you can find in Alibaba.com
begins with the 12Volt to USB converter all the way down to the
inverter and to multiple plugs. We can not compete with these China
produced devices.
We stay to the core business: German quality to a fair price.
further for more information you can contact to the undersigned. Photos of panels are attached here for you to better understand.
Rahul Pareek
Project Manager India
Via delle Aie 17,
6900 Lugano, CH
Contact Switzerland:- +41 919 724 344
fax:- +41 919 711 572
Contact India:- +91-9950225633
e-mail:- [email protected]

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