Power From Solar During Grid Power Failure

[Mike90250]

You realize, when you add batteries to a system, you have oodles more maintainance, unless you are expecting week long outages in clear summer weather. A small gas genset will easily keep you going for a couple days. If an ice storm comes through, and it's 2 weeks to get power on, your PV may not make much power in bad weather, and you still have to run the genset.

[greenHouse]

You realize, when you add batteries to a system, you have oodles more maintainance, unless you are expecting week long outages in clear summer weather. A small gas genset will easily keep you going for a couple days. If an ice storm comes through, and it's 2 weeks to get power on, your PV may not make much power in bad weather, and you still have to run the genset.

Yup, and when the Texas PUC changed the feed-in tariff and wasn't paying me for exported power, I was able to stop giving away several hundred KWh a month. Whenever time-of-day / tiered billing becomes available, I can time-shift my consumption to exploit whatever differences in rates exist.

Battery maintenance in a grid-interactive system is next to nothing compared to battery maintenance in an off-grid system. They just don't get worked as hard.

[MarineLiner]

... when the grid power goes the solar will be shut down.
... how to keep the solar generating power for my house while cutoff from the grid during the power failure.
Is the cutoff done purely as a safety measure for the power companies or is it something ...

[MarineLiner]

Has anyone heard anything about the TerraWatt Power ecoJoule 2500 inverter?
It supposedly solves the problem that was being discussed on this thread.
In a power outage, it prevents solar power from going into the grid but does NOT prevent solar power from going to your house.