Ignoring cars and PV one can invest in a home storage battery and switch to a time of use tariff and then charge up when cheaper rate and discharge when at the higher rate, obviously joining it to solar PV is more beneficial, additionally you can join something like Ripple Energy invest in one of their windfarms and get a payback on your investment into your household energy account over 25 years (I know I know some of use won't last that long but you can leave the investment to someone when you pass).
There are things you can do to alleviate spiraling energy costs if you pull your head out of the sand.
Interesting, I only thought battery packs were viable if charged via solar PV, didn't realise you could charge via off peak leccy
I suppose it's a bit like the Hydro plants pumping the water back up into the reservoir at night ?
The ultimate ambition of the smart metre believers is for all cars to be EVs that are connected when not in use, and all houses to have a power wall. This combination would act just like decentralised pump storage, with power stored and taken as the grid needed. It is theoretically possible, but I'm not convinced it is either affordable or achievable. My Tesla has a 76 kw battery, most of the time it has about 60 to 40 kw in storage so no problem to trade 20kw , but until both Tesla enables the export of power, and the DNO upgrades the local network, it isn't possible.
