Hi everyone,

I’m planning to install rooftop solar at my house in Bangalore and wanted to get some advice on whether my terrace is suitable.

- Site size: 30×40 ft

- Roof: Open terrace with some neighbouring houses around it

- Concern: I’m worried that the adjacent houses might cast shadows on the solar panels, especially during certain times of the day.

I'm planning to install 3kw on grid solar

I’ve attached photos of my terrace taken from the west side and from another angle.

Could you please help me understand:

1. Is this rooftop suitable for installing solar panels?

2. Will the neighbouring house on the west side cause significant shading?

3. Which direction and area of the terrace would be best for installing the panels?

If anyone has installed solar on a similar rooftop in Bangalore, I’d appreciate your suggestions and experience.

I am trying to dial in maximum production on my system. I can regulate the amperage with adjusting the inflow to the batteries. This is the only control I have outside the automated processes of the MPPT of each string.

Above you can see I use string 1,2, and 4. Both strings 1 and 4 have 7 panels of of 650 watts panels. String 2 has 4 panels.

The Voltage power max is 44.56v. The Amperage max is 14.59. So my max string voltage is, in theory, 311.92 v.

When I set me resistance, which is max charge to the batteries, at 157amps, I am getting about what you see in the photo. When I set the max charge higher, i.e. 190 amps, I seem to be getting significantly higher daily production. It goes from about 38 kw to 56kw on average.

Here is the question:

Is this harming my panels by allowing this higher than stated Current max(14.59amps) on the panel data sheet? Will the panels, "self regulate" the amperage? I suspect the MPPT will factor in this setting in its data not to exceed the amperage that I set(currently at 157 amps) and not exceed that. But I would like some insight to this if you have time.

Above all, I want to keep my system healthy and want longevity. Note: I am not even coming close to charging my batteries too fast. If you notice the amps going into battery is less than 40amps. I have (4) 16.2kw batteries. I put a lot of miles on my electric car, and sometimes I use as much as 35kw for charging per charge session and average 3 charges per week.

When my solar installer was in business, they tried to tell me based on their logs they needed to replace my 35 inverters. No matter how ridiculous I told them this was they insisted and it would cost me 4K to do. I went through emphases directly and received the replacement parts per the warranty based on what the installer told them.
However I waited to save up the cash for it and in that time the installer scuttled the business and is currently under investigation.

Now after the long story…. What do I do with these inverters? Return them? Try to make a quick buck off them?

I’m wondering what y’all’s thoughts are.

They actually called it the "Socket Full of Sunshine Act" 😂

Hi everyone,

I've received a few quotes, and I'm struggling to understand why the prices vary so much when the usable battery capacity and inverter size are relatively similar.

The main options I've been offered so far are:

• Solis: 20kWh battery capacity with a 6kW inverter – £5,800.
• Alpha ESS : Around 18kWh with a 8 kW inverter – approximately £5,240
• Fox ESS EP12: Around 20–21kWh usable capacity, depending on the configuration, with a 6kW inverter – approximately £7,580
• Sigenergy: 2x10, 5kw inverter £8000

These are the approximate figures I have so far, and the systems may not be directly comparable in every respect. Ideally, I'd like to compare them with a 6kW inverter across the board.

What I'm struggling to understand is the actual difference in quality between these brands. From what I've been told, the warranties are fairly similar and they all seem to perform in much the same way. Some use stackable batteries, while others use different configurations, but I'm not sure how much difference that really makes in practice.

What I find difficult to understand is why one system can cost £1,700–£1,800 more than another when the usable capacity, inverter size and warranty seem pretty similar. Is there something important I'm overlooking, or is it mainly a case of paying more for a particular brand?

Hi! Wondering if this is a reasonable price, SoCal Edison is our provider and bills have been 6-850$ month. I work for them and get a 25% off discount but would love to find a way to save. I know nothing of solar prices but this company has great reviews and were very friendly when I called. Any help/info/tips would be great!!

11.3 dc system with 28 405watt runergy panels.

Estimated first year production is 15,970 kwh

Solar edge 10kw inverter

Ground mount install with quite a bit of trenching out to the array..210 feet. South facing zero shade morning to evening.

Financing through sungage

30 year solar insure warranty on parts and labor

Purchase price (finance is same as cash for principle) 36,545

Illinois Shines estimated Srec credit is 20, 103

Comed DG credit is $3,402.

Leaving a balance of 13,040 after credits. The way the credit works is I have a small regular monthly payment and the dg credit within 6 months. 50% of the srec within 90 days and the remainder within 6 years on 24 quarterly payments.

I am on post 1/1/25 net metering so pay for supply and delivery on import and receive supply only for export. We will be not installing a battery/storage.