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India’s Silicon City Bangalore may soon see a proliferation of Rooftop Solar Systems

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Solar Rooftop in Bangalore

India’s southern IT city of Bangalore may soon see a proliferation of solar rooftop home systems as the distribution utility BESCOM will soon allow “net metering” for its customers. Net Metering is the process of allowing solar rooftop homeowners to sell their excess solar electricity to the grid. This means that home owners do not have to install expensive batteries to store their excess power, as they can bank their electricity in the grid. Some countries such as Germany allow gross metering in which all the electricity generated by solar panels is sold at a higher than normal electricity rate (called feed in tariff).  Bangalore is already home to a huge number of solar water heaters, thanks to the strong government support.

Net Metering is useful for India, as most utilities are power deficient and solar systems can plug the gap without capital investment. This will also reduce the huge amount of T&D losses as solar energy can be mostly consumed at the site of generation. I think that net metering will spread to almost all states in India as it is spreading in major countries such as the USA.

Issues of Net Metering

There are some issues with net metering such as:

a) How to account for the excess electricity

b) What happens if there is a lot of solar electricity generated which can cause grid safety issues

c) Is the excess electricity settled in cash or only kind.

These teething issues will need to be sorted out with regulators, utilities and house owners. Solar energy is still quite expensive, compared to the dirty cheap coal based energy in price terms. However, solar energy is becoming more and more competitive each day and by 2020, solar energy will become equal in costs to fossil fuels even with energy storage.


Sneha Shah

I am Sneha, the Editor-in-chief for the Blog. We would be glad to receive suggestions, inputs & comments on GWI from you guys to keep it going! You can contact me for consultancy/trade inquires by writing an email to

3 Responses so far | Have Your Say!


    Residential rooftop PV has already too much delayed in India. So many states in India have already achieved grid parity.due to high solar resource and high tariff of electricity.Net metering is only viable solution at present. For encouraging generation from rooftop PV, monthly payment should be made on account of excess generation of electricity from rooftop PV. Smart grids should be developed by utilities for receiving electricity generated from rooftop PV.

  2. Shashidhara K

    I am not sure why there is so much delay in introducing net metering in India. This is a proven solution, and grids in rest of the world are able to handle the load. Also, we now have proven and certified grid-tie inverters available in India, which can ensure the voltage and frequency requirements, and also solve islanding issues. With battery costs soaring through the roof (lead), Grid-Tie solutions are the only way common man will adopt solar in urban sector.

  3. prof.G.R.Kantharaj

    Most of sellers of solar inverter are selling at exhaustive cost, each and every company givew different prices, no warrenty. We don’t know where the net meters are available in bangalore, If you know please let me know where- 9886891260