Electricity Saving Tips For Homes And Offices

Net Metering policy for roof top PVs in various states in India

By on May 2, 2017

Solar powered systems can be categorized in two:

  • Grid connected solar power system.
  • Stand alone Offgrid system.

A grid connected system as the name suggests is the one in which your solar power system is connected to the local main grid. In this case, your loads can run on solar power as long as there is sufficient energy available from the sun during the day. Any deficit is taken care by the main utility supply. However, if the solar energy production is in excess as compared to the load requirement at that moment, the excess energy can be either stored in the batteries (if available) or can be sold back to the utility grid. This difference of energy can be tracked using a meter connected to your solar pv system.

Types of Metering

In a solar powered system, usually following two types metering systems are involved:

  • Gross metering
  • Net Metering

In gross metering, entire energy generated by the solar PV system is fed back directly into the utility grid.  In this case, the owner gets incentives based on feed-in tariffs proportional to the energy fed back to the grid.

However, net metering takes into account the difference of excess energy fed back to the grid and total energy consumed from the grid by the system owner. A detailed explanation about net metering is given below:

What is net metering?

Net metering is an agreement that allows the solar PV system owner to sell excess solar energy to the utility company or buy deficit energy from the utility company using a meter to track this energy exchange.

Following 2 cases take place in this scenario:

Case 1: If at any moment of time, if solar energy generation (kWh) is less than the load requirement at that time, the difference of energy is taken from the main grid and the meter runs forward, as usual. In this case, the system owner is charged for the units (kWh) consumed from the main grid. Eg. During early morning or during late evening/night.

Case 2: If at any moment of time, if solar energy generation (kWh) is more than the load requirement at that time, the excess solar energy is fed back to the main grid and the meter now runs backward. In this case, the system owner gets credit for the units (kWh) fed back to the main grid. Eg. During peak sunshine hours (afternoon)

When you generate extra electricity (more than what you can use) the meter literally moves backwards.

Thus, at the end of the billing period:

If case 1 > case 2, then the owner is charged for the difference of units as per usual retail tariff

If case1 < case 2, then the difference of units is either carried forward to the next billing period or the owner is paid for the difference of units as per the tariff decided by the concerned utility.

(kindly refer your state policy/utility company policy for more information about tariff)

In short, the owner pays/gains for the ‘net’ energy used over the designated period of time.

Meters used in Net metering:

The use of meters in this case differs from State to State. Some states may require only one meter that reads the ‘net’ energy consumed by the system owner. However, few other states may require two meters – one to measure solar energy generation and the second to measure the units consumed from the utility grid.

(Kindly refer your state policy for more information about tariff)

Advantages of Net Metering:

The 3 most important advantages of net metering are:

1. Financial benefit for the system owner

Since the system owner is charged for the net energy consumed from the utility grid, the owner gets financial benefits. Eg. If energy generation < energy consumed: owner pays just for the net amount. If energy generation > energy consumed: the owner gets credit for excess generation.

2. Avoid the use of batteries

In a grid connected solar pv system, any excess energy generated can be fed back to local utility grid and can be taken back at later stage when required. Thus, there is no need to store the surplus energy in batteries for later use, thus, avoiding the heavy costs of batteries. Also, since batteries are eliminated, the maintenance costs of the system also reduce to a great extent. Batteries may be required only when there are frequent power fluctuations/outages. (please note, in a batteryless grid connected system, if there is an power outage and the grid fails, your solar power system has to stop generating power to ensure safety of the wiremen working on the failed gridlines.)

3. Produce more today, use that tomorrow

Typically, a solar power system produces more energy in summer and comparatively less energy in winter. Eg. If in summer, solar power generates 100 units and load requirement is 80 units, then 20 units  can be fed back to the grid. In winter, solar power generates only 60 units and load requirement is 80 units, then 20 units can be taken from the grid. Thus, overall excess generation from solar power system is taken care of and net units consumed from the grid becomes zero.

Net metering in various states across India

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)






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I have made arrangements for installation of SRTPV on gross metering system. installation is complete . Grid connection will take place in 3 days. Whether opting for gross metering against net metering is justified?. Discuss.


Solar Power Plant now become affordable, call us at 7307420111 or mail at [email protected]


Gaurav Kumar Raheja

(Loyal Technologies Private Limited- MNRE Channel Partner)


We need net meter 150 KVA 0.2 class accuracy (3 phase HT) for our solar installation in Haryana.
Pls advise who can supply. Pls contact at [email protected]

Abhinandan Choudhary

We are Solar EPC company and we can provide

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

-Solar street light 12W-150W

-solar water heater etc.

contact me: [email protected]



We,Provide Complete Solutions on Power Generation through Renewable Energy, Solar Panel Energy and Roof Top Solar Power Plants & Systems.
We are located in Faridabad/NCR/Pan India.
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2.Solar PV Module For Commercial Purposes
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Call +91 -8697000196


We,Provide Complete Solutions on Power Generation through Renewable Energy, Solar Panel Energy and Roof Top Solar Power Plants & Systems.
We are located in New Delhi/NCR/Pan India.
1.Solar Rooftop System (On Grid & Off Grid)
2.Solar PV Module For Commercial Purposes
3.Off Grid Solar System
4.Street LED Light.
5.Solar Pumping System
6.Solar Photovoltaic Module
7.Solar Water heater FPC
Contact me at [email protected]
Call / WhatsApp +91 - 9953384191


we are planing to installed wind solar net metring system for mumbai up to 10 KW as plenty of wind is avalable is this possible in Maharashtra or only PV systems are allowed for the same. satish kale [email protected]


All type of Solar consultancy/ training done here for more details please feel free to call us at 8697000196


Aura Energy


i want to do some solar of -on grid canection

Abhinandan Choudhary

We are Solar EPC company and we can provide all type of

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

-Solar street light 12W

-solar water heater etc.

contact me: [email protected]



We are an Solar EPC company and we can provide

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

Solar street light 65w

solar water heater and etc.

contact me:

[email protected]

Phone/WhatsApp : +91 - 9953384191


Abhinandan Choudhary

We are Solar EPC company and we can provide

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

-Solar street light

-solar water heater etc.

contact me at [email protected]

call/What's app +91-7042435795



is it possible to have an arrangement in which our solar pv system sends all the energy generated into the grid (without running the appliances on it) and getting benefit of net metering over our monthly bill?

appliances will run on grid only. we will send all into the grid.

is it possible?

Abhishek Jain (Mod)

Hi Aayush,

These days in most states there is a netmetering policy. As per this policy you get a bi-directional meter. It runs in right direction when you consume electricity and opposite direction when you produce electricity. So net-net you pay only for the delta.

If you produce more than you consume, it gets adjusted on your next bill. If at the end of the year you produce more than what you consume, then in that case you are given amount equivalent to net power purchase cost in that state. The net power purchase cost varies from state to state. In Maharastra it is about Rs 3.5-4 per unit of electricity. In Karnataka you may get as high as Rs 7-8 per unit.

In netmetered case, appliances are run on grid only. Whatever you produce is sent to the grid directly.


thankyou so much for your valuable reply Abhishek.

my demand load is 10KW but acc to my roof size, max capacity to be installed is 5kw. so i can send all the units generated by it directly to the grid or like its said only excess power goes to grid.


Can you please share Net Metering policy details in Gujarat.


We are an Solar EPC company and we can provide

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

Solar street light 18w/65w

solar water heater and etc.

contact me:

[email protected]

Phone/WhatsApp : +91 - 9953384191

Abhinandan Choudhary

We are an Solar EPC company and we can provide

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

-Solar street light

-solar water heater etc.

contact me at [email protected]

or call +91-7042435795


what are the pros and cons of net metering and gross metering and which one is better.


http://www.solar2roof.com Solar water pumps for irrigation with subsidy


We are an Solar EPC company and we can provide

solar Rooftop system

-On grid(with net metering)

-Off grid(with battery)

Solar street light 15w to 120w

solar water heater and etc.

contact me at [email protected]

or call +91-995338419


can you do 4kw capacity project in Bhatinda, PB?
what will it cost without battery back up option?

[email protected]


4.2 lacs


Dear Raghu, It will cost 3.5 Lacs for 4 Kw without battery


Career in Solar Industry as a solar panel installer ................................... 3 Days Solar Training by Professionals starting from 15/06/16 in Delhi ..........Register Today
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Siddharth Sobti

Hi Mr. Amit
The reason why subsidy is not available for industrial consumers is that industries get an equivalent amount of savings through accelerated tax depreciation. The subsidy is being facilitated to only those sectors who aren't eligible for AD benefit. So, by hook or crook, the consumers are getting this benefit from solar installations.
You can contact me at [email protected] or 9999229553, if you have any doubt over it.
Siddharth Sobti




we are a leading provider of solar- Installed - 40kw solar roof top plants in rajasthan
operating from Indore- MP
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CALL US - for full system designing + installation support
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Urban Gear Solar solutions - 9977000848
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Manzar abbas jesani

Sir I am interested

Please contact me immediately


thanx very useful information .please let me know if we can use AC or heater on 5 kwp solar plant which is off grid or on grid..

Abhishek Jain (Mod)

On Grid system should easily be able handle AC with even lower power as the grid can take initial surge for AC and solar can provide energy for normal operation. But a 5 kWp off grid system should also be able to handle an AC.


what is the difference in the cost of on grid and off grid system and why ?

Abhishek Jain (Mod)

The difference will come in the cost of batteries as you do not need batteries in on grid system. Each 150 Ah battery that can store about 1.5 units of electricity costs about Rs 10-13K. Batteries are the costliest component in most solar pv systems because not only are they expensive to buy, you need to replace them every 5 years. You also need to maintain them well.


Hi guys,
Good initiative! The cost of power is rising everyday without much increase in the avg. income of households so I understand the need for awareness in this sector.
Something I am very much interested in finding out is; what you guys are doing for people that live rented? One very common and popular new option is offered through plugandplaysolarkits guys with their Stealth 2.0 kits where you get to simply plug in the kits to an outlet. Their utility-interactive inverter syncs with the grid and reduces the amount of power needed. Say if I use around 9 units a day and their unit produces 2 units a day my net usage is just 7 units. Unfortunately they don't sell here in India.
I really like the idea of movable, easy installation units like these and I would instantly buy one if you guys did something similar. Is this possible?


Please advice on the following scenario.

We are a residential building with the following monthly consumptions on two seperate bills.

1. Lift (Elevator) - Rs 6000 / month i.e arround 525 units 3phase
2. Passage lighting - Rs 2000 / month i.e. arround 250 units. 1 phase.

if we install a Grid tie 10kw Solar Unit on our roof top which has that much space to accomodate, then.

1. can we have a net metering concept in this without any load on Solar panels? i.e. Stand alone Solar Power generation?
2. if not then What would be best possible combination to have Load utilized and returned to the grid?




Shrikant, Pls call me on 9011027758 or write to me at [email protected] with your detailed requirement and contact details so we can help you further. We have the experience of installing Solar net-metering in various states and have many successful running installations.


Hello Everyone! I'm from Pune Maharashtra and looking for help to more on Service Providers on Met Meter Solar System. I'm having an requirements of 3-5 KW system. Can someone help me?


hi Deepak u can send me your requirement at [email protected]


Hello Deepak, Pls call me on 9011027758 or write to me at [email protected]
with your detailed requirement and contact details so we can help you
further. We have the experience of installing Solar net-metering in
various states and have many successful running installations.


My question is if I have a load of 10 KW per hour..
1)what would be my Kw required on grid ?
2)what would be my kw for off grid with battery backup of 4 hrs?

Please help me understanding the calculations..

Abhishek Jain (Mod)

To find the load you really need to look at kVA (kilo volt ampere) value rather than kW value. To know more about Volt Ampere you can look at this link: https://www.bijlibachao.com/electricity-bill/what-is-electricity-the-basics-voltage-ampere-power-explained.html

Also kW itself is rate of electricity consumption, so it cannot be kW per hour. kW is similar to speed.

To answer Q1, you need to know kVA value (which is the real load).

To answer Q2, you need to know the wattage of appliances and the time for which each of them is to be run. A 100 Watt (or 0.1 kW) bulb when kept on for 10 hours consumes 0.1 x 10 = 1 kWh or 1 unit of electricity. You have to do such calculation for all the appliances. Based on that you will understand requirement of 4 hours. A 1 kWp solar panel can generate about 4 units of electricity in a day.

Murali Subramanian

Hello Bijli Bachao, can you please tell me if we can comfortably run highly inductive loads on grid tied PV systems (without batteries)? How will such systems handle the typically high starting current of such inductive loads? Will the higher starting current requirements be met from the grid? How will the grid tied inverter behave in such situations?

Abhishek Jain (Mod)

We have written about it on this link: https://www.bijlibachao.com/solar/running-air-conditioner-and-other-high-power-consuming-appliances-on-solar-pv.html

This post should help you. Your solar PV system size will increase significantly if you try to run highly inductive load. You will have to size it according to starting current.


Please email your detail requirement on [email protected] or can call 9161368555 so we can help you further. we have experience for the same as you asked for.


Hi I am ramkumar. An environmentalist and a hardcore technocrat living in Sulurpet a small town in AP close to Chennai and Tirupathi. Built a house which is 100% eco friendly. Implemented Energy mngmnt ( 1 KW off Grid and 3 KW grid tied ), Thermal mngmnt, water mngmnt and waste mngmnt. Zero waste concept. Tried to make house independent of Govt help in providing water, electricity and gas. LPG at home is only for standby. Generating biogas with human night soil+5Kgs of food waste ( from ant hotel/dhabha ) + excellent bio enzyme (NPK) for plants. 100% Swatcha Bharat home. Interested can contact me 9940652943.


I am from Jamshedpur and i live in an area where JUSCO (A Subsidiary of Tata Steel) provides Electricity. I want to know whom to approach if i want to sell electricity that is produced by Solar Panels installed at my rooftop. I am interested in setting up a 5KW power Plant connected to the grid.


Dear Sumit Ji ,
Please email your detail requirement on [email protected] or can call 9161368555 so we can help you further. we have experience for the same as you asked for.

Abhishek Jain (Mod)

Hi Sumit,

You should contact JUSCO for the same. Their customer reps should be able to guide you with the same if they have net metering policy.


I'm one of those progressive thinkers and wanted to contribute by adopting Grid-tied roof top solar system. And I initiated all the necessary home work to fully comprehend the system. I tried reaching out to the TSSPDCL(Telangana Discom) and to a certain they have addressed my concerns. The vendors from the empanelled list have not reciprocated except for one, to whom I reverted back with some questions/clarifications to which there is no reply till today. Anyways the responses are discouraging and I can imagine once the system is in place then wondering what would be the state of ASS(after sales service) or maintenance.

anyways my observations, I wanted to go for a 5 kWp system, but due to terrace constraints (only 225sft) availability, and another half occupied by ETC Solar Water heater and Sintex water tank. I was told that I can go with a 2kWp system, that was a first discouragement, and then I tried to compare and contrast the pricing factors and was flabbergasted to realise that grid-tied solution is not at all viable at this point in time. The following table should give bijlibachao team and fellow contributors some idea as to the drawbacks involved in it. Not to discourage anyone but sharing my thoughts. If I missed out something then ppl can enlighten me.

Present Billing 500 units/month going by the tariff rates(2015-16) Grid-tied rooftop system solution @ 2kWp 250units generation p.m. (consumed-generated)
Paying to Discom every month/year(s) below 500-250=250. 250units [email protected] => 1160+ST+others=1250 on higher side paid to discom

Rs.3000 p.m Rs.1250 p.m (A)
Rs.36000 p.a Rs.15000 p.a (B)
Rs.720000 (for 20 yrs) Rs.300000 (for 20 yrs) (C)
Rs.300000 (Upfront Investment) (D)
Rs.90000 (CMC [email protected] from 6th-20yr) (E)
-------------------------- -----------------
Rs.720000 Rs.690000 (C+D+E)
------------------------- ------------------
This current billing comparison at present tariff rates, without taking into consideration inflation, hike in tariff rates, and any other incidental charges applicable. I realised that by investing upfront Rs.4 lakhs including subsequent maintenance for the next 20 yrs, my ROI is only a meagre 30k (720000-690000). Even this 30k will reduce taking into account inflation and tariff hikes, leaving no scope for any encouragement and ROI. These are my observations, please share your thoughts as i'm open to suggestions for better.

My two cents worth advice to the Union Govt and State Govt to come up with better incentives or maybe a lease option (which eliminates maintenance on the consumer/customer) to lure the citizens to adopt solar energy systems.

I still have some unanswered questions, as follows:
1. What would be the panel size (dimensions) of these solar panels? read that each panel produces 245kWp. Is it 4*4 ft or 2*2?
2. How much would these individual panels cost. (This doubt was raised by my family as they wanted to know if due to unforeseen circumstances should something happen to the panels). It never occurred to me.
3. Would all the panels generate equally? or would there be disparity among the panels, which would obviously affect the unit generation.
4. What if the desired monthly units are not generated, then what should be done?
5. Are there any SLAs signed upon, if yes, what should the consumer ensure to incorporate?
6. Anything that I happened not to ask or should you feel that I should know?


Abhishek Jain (Mod)


Completely understand you. In fact if you want a frank opinion, then we also feel that Solar PV is still not quite viable in areas that get continuous electricity (especially urban areas). It makes a whole lot of sense at places where there is no electricity and having electricity adds a whole lot of value. For e.g in industries where there is no electricity, in shops at places where there are frequent power cuts, etc (mostly commercial applications). The price of solar PV is still high. Now to answer your questions.

1) Typical size of panels is 65 inch by 39 inch or 77 inch by 39 inch. But panels are collection of solar modules arranged in a way to give a certain voltage output. It can be 4*4 as well. Size of the module will depend on the efficiency of the material used. A mono crystaline module can be much smaller as well (as low as 6 inch by 6 inch for 245 Wp).

Efficiency of most commonly available modules in India would be about 18%. And so you got it right that in 225 sqft max you can fit in is about 2 kW system.

2) Typically you can get a good panel for as low as Rs 50/Wp. Anything below that would be low in quality/efficiency.

3) Well it will depend on the orientation of the panel. A good 1 kWp solar PV system would generate about 1600-1700 units of electricity per year based on the irradiation levels in India. It can be more in states like Rajasthan. However if you do not orient it properly then it can be less. You have to make sure that the panels get enough sunlight.

4) Well all depends on how you orient the panels and how good is light in your area and on the panels. No one can give you a guarantee on number of monthly units generated.

5) I guess the only thing that you will get is warranty on working of the system. No one can guarantee the number of units that it can generate, because it is highly variable.

6) While buying, you should always ask for certifications, efficiency, etc of the solar panels. You can refer to this link for more information: https://www.bijlibachao.com/solar/india-solar-photovoltaic-pv-panels-selection-guide-understanding-system-quality.html

You may also look at this link to understand some technical terms: https://www.bijlibachao.com/solar/solar-glossary-what-is-photovoltaic-energy-panel-module-cell-voltage-watt-current-thin-film-mono-poly-crystalline.html


Sorry the table got jumbled up despite my tabulating it in the write up. Hence i'm writing it once again separately as follows:
Present Billing 500 units/month going by the tariff rates(2015-16). Paying to Discom every month/year(s) below
Rs.3000 p.m
Rs.36000 p.a
Rs.720000 (for 20 yrs)
Grid-tied rooftop system solution @ 2kWp 250units generation p.m. (consumed-generated). 500-250=250. 250units [email protected] => 1160+ST+others=1250 on higher side paid to discom:
Rs.1250 p.m (A)
Rs.15000 p.a (B)
Rs.300000 (for 20 yrs) (C)
Rs.300000 (Upfront Investment) (D)
Rs.90000 (CMC [email protected] from 6th-20yr) (E)
Rs.690000 (C+D+E)


Contact : Solar grid solutions for Home/ Institutes/ hospitals/ malls/ industrial areas 5 KW to 10 MW. We provide services across India at very nominal rate which are competitive in market.

For any query, Call : 9312700996

Abhishek Jain (Mod)

Thanks for sharing the link Atul. We will surely update the sheet soon.


UP also launched net metering policy.


is it redy to be applied now in UP?

Abhishek Jain (Mod)

Thanks for the update.


Hi Team, I am wondering why govt. or DISCOM is willing to pay 6-8 Rs per unit to solar plant operators while it is giving to consumers @ 3-5 Rs per unit.

Is it only to promote RE or I have missed anything?

Abhishek Jain (Mod)

Hello Mr Bhupendra,

Pricing of electricity is quite complex and I completely understand your concern. When electricity is priced for residential connections there is a cross subsidy applied. What I mean by cross subsidy is that the tariff is slabbed. So if your electricity consumption is low the tariff is low, when it is high the tariff is high. If you see any tariff plan in any of the places, the tariff for first few units is much lesser as compared to tariffs for higher units. Typically cost of production per unit is about Rs 5-6. But first few units are applied at lesser rates (less than Rs 5) and higher units are applied at higher rates (say Rs 7-8). So if you start producing electricity then 1) You will consume less from the grid. 2) In case your consumption from the grid goes down, then you will be charged lesser than Rs 5, so it will be difficult for the utility to pay you more.

Mr. V.M.Shrotriya

I am very grateful for your prompt response. I live in New Delhi May I request your good offices to kindly communicate the contact details of some of the agencies who can guide me to decide on this issue.My household load is 8 KW Thus kindly advise me how many panels are required in case I opt for NET METERING System. Also how much area of terrace is required toi install the same. And ofcourse rough cost estimates( i.e. without batteries,inverter)I shall appreciate your prompt response on my e mail [email protected] . Regards.


Abhishek Jain (Mod)

Hello Mr Shrotriya,

We are not connected with any dealers so we cannot recommend you some. But there are many dealers who follow this website and if you put a comment on this link then someone will surely reply: https://www.bijlibachao.com/solar/solar-panel-cell-cost-price-list-in-india.html

By the way there are two ways to size the solar panels:

1) If you are going for a grid connected system where you want to generate and give extra to the grid then the sizing should depend on the space you have. A 80-100 sq ft space is good enough for 1 kW panel, if you have 400-500 sq ft space on top then you can put 4-5 kW panels. Each kW would produce 4-5 units of electricity. So whatever you need can be used up and whatever you do not need would be put back to the grid. Grid connected system should roughly cost you Rs 70-80K per kWp.

2) If you go for an off grid system, then you will have to look at your average daily electricity unit usage. In that case you do not have to not only look at the household load but also at the total monthly electricity consumption. If your monthly electricity consumption is 300 units then your consumption is about 10 units a day. Then in that case you need a 2-3 kW Solar PV system. An off grid system would cost you about Rs 1 lakh per kWp.


Hi, the Joint Electricity Regulatory Commission for Goa and Union Territories has announced the policy for rooftop feed-in and net metering as well as the solar tariff since the second half of December 2014: http://www.jercuts.gov.in/writereaddata/Files/spgr2014a.pdf

Abhishek Jain (Mod)

Thanks for the information Mr Mohanty.



thanks for great articles and insights.. Attached is link for teh Net metering policy for delhi taht was issued in Sep 2014.


Hope it helps


Abhishek Jain (Mod)

Thanks for sharing it Mr Manik. I have been wanting to read it for some time, just not getting time. I will surely read it soon and update the details on this page.



1. Besides on-grid/ off-grid mentioned above, are there systems where (a) the solar energy is used first for current consumption, (b) then the excess solar energy is stored in batteries (as is likely to happen during the day when bulbs are off and people are out for work), and (c) if/after the batteries are fully charges, the excess power is fed back into the grid? In areas where the govt power supply fails frequently or there are power-cuts, this would be useful.

2. This may be appear little unconnected with this article.... I understand that (a) solar panels generate DC voltage, (b) this (thru batteries or not) is converted to AC voltage and used, (c) the DC-AC conversion efficiency is approx. 85%. I also have read that one can directly use the DC power for LED bulbs which will consume significantly less power, thereby avoiding this DC-AC energy loss. Hence the question: Is it possible to lay two parallel wirings at home - DC for bulbs and AC for rest of the requirement? On the system side, can this be taken care of? Will such solution be cost effective?



It is very much possible but maintenance will be a constant headache. Everytime you call a local electrician to fix something you will have to explain in detail to them which wires are for DC as these guys have no clue about such wiring setups. As you very well know, you cannot reverse the polarity of DC lines by mistake and this is where electricians can make mistakes.

You will also have to run very thick wires for DC lines and the concealed wire tubes inside the walls might not have enough room to accommodate such thick wires. Having worked on various DC projects over the years, I know first hand that voltage drop is always a big issue with DC even on small wire runs. Since the voltage is only 12V for DC, the current running through the wires will always be high.

Having said that if you can do this, it will be a highly efficient setup but not going to be cost effective mind you given the upfront cost of thick 6 sq.mm. copper wires.


Hi Abhishek,

Time to update Punjab & Delhi.

Abhishek Jain (Mod)

Thanks for the information Anand.



Abhishek Jain (Mod)


I have not heard of a net metering policy in Punjab yet.


Hi - do you know if Maharashtra has introduced net metering yet?

Abhishek Jain (Mod)

Hi Roli,

Not yet. Still waiting for it.


We are a residential complex and we have about 20 electric meters for all our common lighting and pumps and lifts.

Can we get subsidy and net metering advantage in Bangalore if we install a solar power system ?


Dear Shravan, as Abhishek suggests running lights in your case will be the way to go. Running pumps and lifts means you are expanding your load profile significantly to include highly inductive loads, which will create problems in sizing your solar system. Also being "common" lights, I presume you are talking of lights in common areas for which the RWA pays the bills and not the residents. For your situation another thing to think about will be whether the benefit of reduced bills after installing solar is passed on to residents as reduced annual building maintenance OR the solar power generated is shared directly with residents thus reducing their power bills

Abhishek Jain (Mod)

Hi Shravan,

You should be able to avail subsidy and net metering advantage in Bangalore. Karnataka does have a net metering policy. Although I feel that your requirement will be quite large and you would need quite a big system to run pumps and lifts as well as they will have quite high requirements. Running just lights would be much easier.

Hope this helps.



what is the cost of net meter in India and who are the manufacturers

Abhishek Jain (Mod)

Hello Mr Reddy,

You will have to approach your electricity distribution company to get the details of the same. Typically meters are approved by state electricity regulatory commissions and installed by distribution companies.

Hope this helps.




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