There is a big movement toward solar power and renewables.
In particular there are a lot of videos on YouTube on how to build your own DIY Powerwalls like Tesla.

If you can get a reliable and inexpensive supply of 18650 batteries then you could put together your own brand of Powerwall.

They are really easy to make with minimal soldering skills required it just takes time and energy.
If initial outlay is a problem you could start with small units and build up.

This may be good also for the Indian market where I understand that electricity is expensive and intermittent.