I am waiting until the link between EV cars and home batteries is mainstream (V2X).

Old Nissan Leaf's are still round £6K and retain over 20KWH of battery. As a second car it sits around most of the time and would be an ideal battery source. Sadly I now have a Kia, very nice but the US power system doesn't allow bi-directional use.

EVs are still quite new tech as is battery storage. In 5 years I am sure a combined setup will be more standard and reduce overall install cost as well as be more practical.

Posted By: revorI believe that the Kia EV 6 is V2L (load) and will allow up to 3.6 Kw to be plugged in via its adapter so one could plug in a house appliance via an extension lead.

The kia niro ev (thats the 'cheap(er)' one) also has V2L.

@qeipl
"I installed 10kWh of Pylontec batteries this year and a Victron Multiplus II GX inverter/charger."

Very helpful, thank you. Did you already have PV panels and an inverter? Is there a risk of two inverters competing for power allocation?

I'm trying to figure out whether my SolarEdge inverter (HD Wave 5kw) would be capable of 'expansion' to talk to batteries, or if I'd need to replace this component entirely.

still not convinced batteries on home solar make environmental or financial sense even though ive started fitting them for a few.
some people just want what they want.
getting hold of them currently is another thing altogether. 2-3 month lead on stock at least or pay through the nose

<blockquote><cite>Posted By: revor</cite><blockquote><cite>Posted By: jamesingram</cite>still not convinced batteries on home solar make environmental or financial sense even though ive started fitting them for a few.</blockquote>

I have a battery and it was questionable at the time of purchase whether it was justifiable or not but having had it now for over a year and with the price hike I am convinced it is. Last 4 months have used very little from the grid being on average 99% self sufficient. In Dec and January we were 27% self sufficient. With our export have been getting a good amount of credit which will more than cover us over winter and also just about cover our gas bill.</blockquote>

I see some are batteries are claiming expected 80% output after 10 years. this is a lot better than 10 year life expectancy.
If you already have solar then moving usage as much as possible into day period actualy undermines battery return asumptions and benefits.
Low users it make less sense.
high users its a lazy expensive way to solve a problem , but that may suit some.

I think with smart night charging etc they start to look better but it really depends on costs and life span.
What do you think your saving a years currently at 27p kWh as a guide price
If we very roughly say money equates to polution then money saved is polution saved

Posted By: jamesingramIf you already have solar then moving usage as much as possible into day period actualy undermines battery return asumptions and benefits.

James, thanks for the worked example. I'm interested in home batteries for the opposite reason - to make unavoidable non-daytime use from excess solar (e.g. early morning and evening dinner cooking which is dictated by school and working hours), since these are peak use times both domestically and .

Currently the storage I do have (SunAmp water heaters) is usually full by midday, everything I generate after this is therefore exporting to the grid during sunny mid-afternoon when national use is probably lowest. Surely it makes sense (carbon, maybe not financial) to store some of this to cover things once the sun has gone down?