I've just been reading the Orison website (http://orison.energy/) who=20
have started a Kickstarter campaign for their 2.2kWh battery pack that=20
plugs into a mains socket to provide power during a power cut, and they=20
intimate can also be used to provide power whilst the grid is up.

I can't see the power generators being too happy about this, Orison say=20
the power does not 'leak' to the grid, here in Australia there are=20
governmental mutterings along with notably Energex who are hinting at=20
some sort of penalty rate for people who are on grid and  have battery=20
backup and who use the grid to charge their battery packs.

I also feel that there is some sort of safety concern here, even if the=20
power from the battery is not going through the meter to the grid, when=20
there is a power outage, this would mean no isolation between the=20
battery pack, which I assume must include an inverter and the mains,=20
meaning a linesman might get a surprise working on outside lines and=20
maybe the electrician if working on a fault inside the dwelling, as it=20
would appear the fuse box would not necessarily be in circuit.

They give no indication of the battery technology used (see their=20
Kickstarter offering which give slightly more detail than their website)=20
or the inverter.

On the plus side it looks very pretty.

Colin


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