The battery has a ten year guarantee but that's reassuring only if the company you choose is around a long time,
Also check the details of that in terms of the guaranteed capacity over the years.
The battery has a ten year guarantee but that's reassuring only if the company you choose is around a long time,
I am not sure if I can name the company on the site however feel free to Pm me
In two minds about the storage battery, if a feed in tariff comes along it may look Like a silly add on.
I think it should stand or fall on its own merits. I don't think it would ever be considered a silly add on: (1) feed-in tariff may never happen and (2) even if it does, it could be very low.
I was wondering about the economic case for this so
Capital Cost: € 6,000
Savings: 2,400 kWh per year (you said your use declined by almost 2/3rds to 1,300)
Cost per kWh: € 0.22 is my estimate of the cost of 1kWh including standing costs and PSO levy
Cost per kWh: € 0.20 is cost of 1 kWh on its own
Savings: € 500 per year
Payback: 12 years
And that's not factoring in the increased value of your property by improving the BER
The house is a B2 BER now, I will check back in after the new BER is completed.
I think the installation might improve desirability amongst buyers and if that happened then several interested parties would influence final price.