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They're limited to pretty small sizes by german law - they are so insignificant that they're much less dangerous to handle. I'm not up to date on their ROI, but
by lompad 2y ago
They're limited to pretty small sizes by german law - they are so insignificant that they're much less dangerous to handle. I'm not up to date on their ROI, but IIR they usually were a rather bad investment and more of a novel toy than a serious and reliable source of electricity.
Essentially, any notable installation fundamentally deals with much higher currents and voltages and as such is much, much more dangerous. Once a certain size is reached, the carrier also has to be involved and professional installation is mandatory, both due to the law and requirements by insurance companies.
At least here in germany. I've been involved with building all kinds of PV installations in bavaria, from 4kwp up to 20MWp. The balkony generators aren't taken seriously by anybody in the industry right now, at least.
- ben_w 2y ago> At least here in germany. I've been involved with building all kinds of PV installations in bavaria, from 4kwp up to 20MWp. The balkony generators aren't taken seriously by anybody in the industry right now, at least. If you're working at that size, I'd expect you to ignore balcony systems regardless of how cost-effective they were. My point here is simply and only that it's possible to make a system safe enough that an untrained and unskilled member of the general public can just plug it in and use it, which is exactly what was being called for up-thread with this: > We should practically get to the point where someone can buy a roll of material at Home Depot and unravel it on their roof, nail it, and plug it in themselves. Germany basically has that (even if it's not in the form of a roll); there's nothing fundamental preventing the USA from having it too.