Best Posts in Thread: Solar R.O.i.

I put mine in for approximately 300,000. Thats 2 batteries that last me the whole night. I dont think, though never positive, that i am not using any noreco. A little more for 3 guys to install it. I have 2 houses, 2 freezers, 1 fridge, and an aircon that we usually use about 3 hours a day. We use about 10 kw. designed it for a 5K but with the extra battery, we have had enough

 

I live in the Bais mountains. We have brownouts on a regular basis for long periods of time. Solar was a necessity as im not willing to be at the whims of noreco who just cant seems to do their jobs. Yes, it was expensive, and ROI was not a major consideration. I avoided the local solar companies as their markup was extreme. Life here is so much better now.

 

Does she want off grid, on grid or both (Hybrid?
I have hybrid. Solar panels have come down in price considerably, batteries are still expensive, inverters are coming down in price.
Why are people installing solar? Sick of brownouts maybe. ROI maybe.
I have solar, 7KW solar panels 5KW hybrid inverter and 12000 wh batteries. ROI 5 Years.
Cost 300k peso but I did it myself with some help lol
You can go on grid with just panels and inverter but you will still get brownout and of course you can get Net- metering, I discarded that, not worth it in my case.

 

I don't quite understand the "solar isn't a good investment" opinions. I heard those views from multiple sides, but at the same time I get advice that I shouldn't need to invest anywhere near half a million peso to get a 5 kw solar setup with sufficient batteries for night time use installed and running.
Based on the statistics for Dumaguete the gross production of a 5 kw system should be around 20 kwh per day on average, so even when accounting for a system efficiency loss of 25% you'd still get an average net energy of 15 kwh per day. In a month that would save 15*30*15= 6,750 Peso, or roughly 80,000 Peso a year. So even if spending 400k on a top notch installation, I'd still get a 20% return on my investment. And yeah sure, some of that return will be needed for maintenance expenses, but still...................

 

I feel, and this could just be me, people consider solar for the same reason they consider a generator. Peace of mind when the power goes out, you will still have power. I want my A/C. I don't want to throw food away. I want my MTV. Did I remember to turn off the A/C when we left the house, who cares, the suns shining. No need to be a TURN OFF THE LIGHTS Grinch. What about a generator then? A generator can serve for peace of mind. You might not get ROI on a generator and you will pay for fuel every time you use it. Not having to pay NORECO does sound appealing. Every monthly no bill from NORECO is your investment returning.

Factors that can make solar ROI faster.
1. Living in an area with higher KWH rates.
2. Living in an area with plentiful sunshine.
3. The cost of the equipment and installation where you live.
4. Not having to throw food away.

I wouldn't get to high on wanting to go green. No solar retailer will ever tell you about the cost to properly dispose/recycle damaged or degraded PV panels. PV cells contain things like arsenic, cadmium, lead & selenium. They should not go in a landfill.