scottish cleaning service
Well-known member
- Messages
- 9,075
- Location
- Paisley
I'm on my third £3k Festool battery because the other two burnt out. Don't think batteries can be relied upon for years of use. This battery power station they call it is on the way out and I will get my money back. I heard of a few other people sending their batteries back because they fail to charge after many cycles. I thought it sounded too good to be true and obviously was.Basically Octopus and other energy suppliers have an off peak tariff. So their normal tariff is say 28p/Kwh but off peak is 7p/Kwh. Say you use 10Kwh a day, under standard tariff that would cost £2.80. If you have a 12Kw battery and charged it on the off peak tariff over night that would cost you 70p, then during the day you use the battery to power your home (can be set to charge on low tariff and run house automatically) . So you save £2.10 a day by running off the battery. The kicker is the battery, when you can get one, will set you back about £6500!!! So it would take over 8 years to pay back the cost of the battery by the savings made!!!
Batteries generally seem to have 10 year guaranty so they savings aren't great. Plus IF energy prices come down then you might not even break even, or off peak energy tariff could be discontinued!