Lets see if I have this right. Prices are just WAGs (Wild *ss Guess)
You sell solar power @ .10/KWHr
You buy grid power @ .15/KWHr
You can buy local solar power for .12/KWHr
You want to buy the .12 power when there is enough of an excess to power up your optional load. Correct?
What you are asking for is how to determine automatically when the property is producing excess power. Correct?
Sounds like you need the equivalent of a reverse power relay to tell you when the power is flowing out of the property.
Do you own the PV & Inverter setup? Are you allowed to modify the setup?
Last edited by LarryC; 12/30/11 12:08 AM. Reason: Additional questions
