Grins, actually My MPPT cost more than the panels. £70 for each panel plus £33 shipping the pair. The 2 30a MPPTs £90 each.
But when fitting to a house it’s likely to be mounting by a pro that is the bigger cost. So yeah, way easier to replace the MPPTs etc then climb on a roof.
Fortunately, with a narrow boat a can do it all myself with just the risk of wet feet ;)
Agreed.
As I say, it’s just the idea of 1.5m can’t be wrong that is wrong. More so coming from a newspaper that depends on the success of marketing for its revenue.
Approx 2% of a population can definitely be sold a crock of shit if the marketing is good. Just look at the numbers who voted Trump in the US or Reform in the UK.
Honestly, if solar Balconies produced 30% of the nations’ electricity, then it would be very impressive.
But while Germany producing 54% clean energy is bloody impressive. Honestly, 30% is likely to be solar as a whole, not just balcony solar.
The number of locations where the low sun would be inline to balconies is limited. Due to urban conditions. Mainly only higher flats over the average city line and rural areas.
And while in those higher or rural flats. The low sun may shine the correct way 30% of the day (if the panels can tilt). For that to generate 30% of the flats use over a whole year. Would take a pretty big balcony. The best panels available commercially nowadays are <300w per m2. So most balconies would have 600 to 1200w max. The whole side of the flat would likely be 4x to 6x times that.
I’d guess it’s still worth doing. (def the whole side of the building thing) Mainly because the panels are so freaking cheap atm. It’s the cost of bats and volt/current/charge management that would be the greatest cost part. But for most users. 30% from balcony alone is not realistic.