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Laying flat is superb for summer months but more of an issue in winter with the low sun angles. Even seen some people mount vertical east panels for winter sun.

There is a YouTube channel I follow which have shown a garden building like this. Other option is to invest in Ripple and buy a share in a wind farm and the savings it brings https://rippleenergy.com/

I don’t know your situation, but you may be financially better off looking at a solar diverter if you have a hot water tank to use excess solar if home all day - depends on your own personal needs & reasons but it could take a very long time to recoupe the cost of the battery if you’re able to...

GivEnergy did say it would be comparable price per kWh to the 8.2, so expect a 16% increase in price. Allegedly. Battery storage will be 0% vat if bought with solar but 20% otherwise.

I moved into my house 8 years ago - I don't have cavity wall insulation or adequate roof insulation in my loft conversion, not through refusal or inaction on my part, possibly by previous owner but I've no way of knowing. The last person to knock my door and try to install couldn't due to some...

Hmmm - maybe I am making assumptions since they mentioned Solar PV, Heatpumps, Wind & water Turbines. Perhaps they'll be 0% if fitted with solar PV only since their VAT rate was linked previously

Yeah - the drop from 5% to 0% isn't too significant for Solar PV, but could make an impact to folks fitting a Solar Battery, etc which would have been 20% VAT previously (unless fitted at same time as panels, then it would be 5%). Can't help but think it may have been better to leave the 5% VAT...

As a heads up - GivEnergy are about to replace their Giv-Bat 8.2 with a 9.5kW version at the start of April - and they have a solar diverter (similar to Eddi) in development. Not sure if their inverters are getting an overhaul too.

As a slight aside, but related - I just got my Home Energy Report renewed - they determined I don't have cavity wall insulation and the insulation in the roof of my (older) attic conversion is minimal at best - so as well as looking at solar, getting insulation sorted will protect against...

I'm not completely sold on the battery yet - not entirely sure that it would pay itself back - but like you say, it's more about the green-ness of it all, and self sufficiency aspects. Solar batteries are only going to get cheaper over time though as more of the early generation EVs are...

I'm looking at getting a Zappi too - chances are I'll move to a British Gas EV tariff, not quite as cheap as Octopus but I'm tied to them until next year and wouldn't save the £70 early exit fees moving elsewhere. Second generation smart meter install is booked & waiting for home efficiency...

As I delve deeper down this rabbit hole, I start to think of better ways to charge an EV along with renewables and potentially solar batteries (although WFH may negate their benefit somewhat). Anyway, this link seems well thought out and good maths involved. Given Scottish Government 0% grants...