We are a group of two Electronics Engineers working from past several months on building a GTI (Grid Tie Inverter).
The system is made up of only the Solar panel and Electronics. The power generated from the Solar panel is processed by the electronics and fed to the connected Grid. All the Electronics was locally developed. We have our first 240W prototype (240Wp + Electronics, No batteries) presently in testing stage. To take this forward to a commercial product, we had a set of questions.
- Is it mandatory to get MNRE approval of our GTI ?
- What is the procedure for getting MNRE approval ?
- What are the costs involved in getting our GTI tested/certified by CPRI ?
- How much time does the certification process take ?
- We here a lot about State/Central Govt. subsidies for people investing in roof top solar PV,
what are the requirements to avail this subsidy ?
- Do we need permision from BESCOM to install this GTI ?
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paging @sanjayv
Raju - SanjayV may be best placed to respond to some questions here. Trying to page him through this comment.
Some answers
Sorry for being off the grid. I am getting killed at work.
Do not have all the anwers, but here are some responses.
Hi SanjayV, thanks a lot for
Hi SanjayV, thanks a lot for your valuable information.
The Govt. of AP and Kerala seem to have a clear policy on rooftop solar for small scale and residential installations, though not clearly expressed, these would mostly be on LT grids..
Will keep you guys posted once I have more concrete information.
This is nice concept. The
This is nice concept. The battery is the bottleneck and takes partially away "green energy" tag from a solar installation. I have installation of 3 panels at home, so called smart SPU (Solar Power Conditioners). As per the claim, the SPU is supposed to convert panel power and suppy to circuit when battery is full.
Originally my idea was to have Panels to feed my circuits directly like your project thus eliminating battery. Now I see some hope once your project becomes success.
PS: I dont mind becoming a "tester" for your project :) to get rid of battery when there is abundant sunlight to power my CFL lights.
I use Grid Tie system
I know I am replying to an old thread, but it is relevant to the community. I have been running a Grid tied system at a very small scale(140 W) in my apartment for last 3.5 yrs, and have been successfully feeding back energy to the grid. It is possible to use a grid tie system, as long as the energy consumed during the day is more than the energy produced(small scale kits) by solar panels. This has helped me in reduce my electricity bills to some extent.
if we produce more energy than what is consumed, then the excess energy produced will be billed back to the consumer, even though you are feeding it back to the grid. This is because the electricity meters are unidirectional.
Finally, its here. I have
Finally, its here. I have applied for BESCOM's Solar Roof Top Scheme. I am roping in SELCO for implementation. As I have 3 solar panels already, I will be re-using them. And my existing smart solar smart PCU(Power Control Unit) would be used as simple UPS system.
Keep watching this space for more updates, as it happens..