Combining Grid power and solar power at The Alternative Energy Store

Combining Grid power and solar power

Posted by Tech Guy on July 02, 2009, 12:44:05 AM

Re: Combining Grid power and solar power (Reply #5)

Thanks a lot for ur answer.

This is what I exactly want.

From your words I understood that, it is the inverter which supplies the offset power when there is a deficiet from the solar.

Can you please specify some of those inverters which do these functions. Also I need remote monitoring of the inverter.

Posted by James Cormican on July 02, 2009, 08:39:39 AM

Re: Combining Grid power and solar power (Reply #6)

no,

for straight grid tie inverters, the following is true.

the inverter only supplies solar energy when it is available from the solar array, and the grid is up and running normally.

the electric company (grid) supplies all the energy not supplied by solar, including at night.

james
altE staff

AltE
"Making Renewable Do-able"
http://www.altEstore.com/

Tel: 877.878.4060 x107 or +1.978.562.5858 x107
Fax: 877.242.6718 or +1.978.562.5854

Posted by Tech Guy on July 04, 2009, 12:38:26 AM

Re: Combining Grid power and solar power (Reply #7)

Yes of course it is the grid that supplies the deficit, but what i am asking is whether the inverter is able to calculate the deficit and take from the grid if the solar/battery power is not sufficient?

If it is the case please specify me the inverter companies which are having that option.

Posted by James Cormican on July 04, 2009, 11:01:09 AM

Re: Combining Grid power and solar power (Reply #8)

hello,

all the prior posts are assuming a grid tie system WITHOUT any batteries. systems with batteries are a different can of worms.

as far as inverter calculating for straight grid tie inverters, it just outputs what it can, no calculations. the grid is always there running all loads that are not offset by the solar production.

james
altE staff

AltE
"Making Renewable Do-able"
http://www.altEstore.com/

Tel: 877.878.4060 x107 or +1.978.562.5858 x107
Fax: 877.242.6718 or +1.978.562.5854

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Combining Grid power and solar power

Posted by Tech Guy on July 02, 2009, 12:44:05 AM

Posted by James Cormican on July 02, 2009, 08:39:39 AM

Posted by Tech Guy on July 04, 2009, 12:38:26 AM

Posted by James Cormican on July 04, 2009, 11:01:09 AM

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