Battery storage - existing solar

[sensij]

Power outage coverage is a side benefit of energy storage. I'm clear I can buy a generator but the power doesn't go out that much. I'm exploring energy storage along with the side benefit of power outage coverage. NEM is going to be far less beneficial in 5 years in San Diego. Something like this:

https://www.greentechmedia.com/artic...t-a-40-reduced

Powerwall is similar - can wire to a sub panel of specific circuits or whole house depending on budget.

Perhaps what I meant to ask is - if one has energy storage, will the PV system still be able to charge the batteries in the event of a grid outage? Sounds like that could be done if an ATS is put in place.

An AC coupled Powerwall 2 with "backup" capability, or similar equipment form a competitor, is compatible with microinverters or an existing string inverter. It will have a transfer switch, and is built with an internal inverter that is capable of acting as a source that will meet the microinverters grid presence requirements.

I would still suggest waiting the 5 years to truly see what the PV/NEM landscape looks like around here. In addition to cost reductions / technology improvements on the battery side, you may find that the PV is still providing enough value on its own that adding storage does not yet make financial sense.