Solar panel for charging batteries

[saurorjjam]

Hi

I am new to this site....

Wanted to know is there any solution to charge 22 Nos. 200 AH batteries connected to a 80 Kva UPS.

I hope the geeks out there could help me get a solution.

Thanks
Mathew

[Sunking]

In theory it is possible, but in reality nothing you could afford or available on the market.

[saurorjjam]

Hi Dereck

Thanks for your response. I was referring if it would be possible on hybrid connectivity to save AC power. Presently it working on AC and Diesel Generator. We are looking to add first solar and then if conditions permit, to add wind resources.

Would like to have your views....

Kind Regards
Mathew

[Sunking]

Well it depends on a couple of factors. First and most important is how many Kilo Watt Hours at what Power Factor you need to generate in 24 hours.

Next and just as important is your location and shortest Solar Insolation Sun Hour Day you have.

You mention a 80 Kva UPS. Those are rated at a PF=.8. So let's say you are drawing a steady 60 Kva from the utility. That would mean you are using 60 Kva x 24 hours = 1440 Kva hours in a day. That is an astronomical amount of power for any Renewable Energy source. So let's say you are in India near the equator and receive during the rainy season a whooping 5 Sun Hour Day. That would mean you would need [1.5 x 1440 KVa Hours] / 5 Hours = 432 Kw solar panel array. Any idea of how much space and how much the panels will cost? Well for the cost figure $3 USD per watt. So $3 x 432,000 = $1,296,000 just in panels plus a whole lot of custom made expensive regulators and hardware. No business can justify that kind of expense to pass along to its customers when you can buy the electricity for 1/30th of that cost in a 10 year period. You would be out of business in a year or less.

Your best bet is to use a grid tied system to shave some utility cost off with a 10 year ROI plan.

[saurorjjam]

Solar power for 80 kva ups

Hi Dereck

Thanks for your detailed reply.

As you say Grid tie is the best option available and Grid tie is yet to start of in this part of the world. Infact I am working with the Government for getting the grid tie in place.

Maybe we could take over the lighting systems and other smaller loads and have them run on solar.

Would like to know your profile and the kind of work you do for renewable energy.

appreciate your valuable views in future.