My brother, who lives in germany, has told me about this before and i love the idea so much. Its so simple to implement and has no downsides whatsoever. The person renting the appartment buys the solar panel and if they leave they can easily take it with them.
And yet, i can not for the life of me get my land lord convinced to allow me to do this too despite it needing no permanent changes to the apartment… Solar panels rules are too strict here too, and i love that germany just embraced them like its nothing
You can safely feed in a lot more than 800 W if you know what you’re doing, but it’s illegal.
It’s only fine because the panels do not do much of anything.
When large swaths of the population become even partially self-sufficient, it’s an enormous issue for the electric grid. Again, not an issue over an occasional few hundred watts, but when whole neighborhoods cover their roofs in solar panels the following happens:
- These (comparatively rich) people stop contributing to maintaining the grid. Half of electricity costs are distribution costs, so unless you have no net metering and a separate distribution line in your bill the rich are being subsidized by the poor to install solar capacity at home. Of course changing the billing system fixes that, but it also makes solar much less financially interesting and really pisses off people who already paid for solar and now won’t be having a positive ROI for an additional decade.
- The panels are not remotely operable so their aggregate power generation sometimes causes enormous stress on the rest of the grid, forcing old nuclear/gas/coal PP to spin up and down much more quickly and frequently than they were designed for.
- Locally the voltage fluctuations may be very large. Nominal where I live is 230 V, but it’s not unheard of for rich neighborhoods to be pushing 250 V on very sunny days. Then the inverters shut down automatically, but it’s always whoever happens to have the most sensitive inverter who ends up not being paid on sunny days.
Anyways apartment solar is not really the issue here, it’s the people with 10+ panels. But there are good reasons for solar to be heavily regulated.
Yet, some landlords refused it. There have been talks about a new regulation, but currently a landlord can more or less arbitrarily deny solar panels.
My “landlord” is a company owned 100% by the city I live in, they claim to embrace solar, but in order to get the permit to install a panel I need a structural review of the balcony, which a) costs a ton of money and b) I need some documentation (blueprints/plan) from my landlord. So far that sounds kind of reasonable, buuuut they refuse to give out any information about their buildings, so even if I would pay someone to prove the balcony won’t collapse, this guy can’t finish the report without knowing what the wall is made of.
So effectively, they managed to pull ye olde Kafka not-really-denial.
If you are talking about Germany, that is no longer true - landlords can not deny installations without sound reason:
https://www.tagesschau.de/wirtschaft/verbraucher/balkonkraftwerke-mieter-gesetzesaenderung-100.html
The surrounding laws were updated July this year, so it is a recent change.
typical hehe
governments are often more strict in rules than normal people, and those rules often prevent other rules from being enforced hehe
it shouldnt be though, they should set the bar with their own buildings :)
It’s often said that probably the biggest challenge with switching over all the cars and heating to renewables here in Germany, is going to be the transport of so much electricity to all the homes.
That’s what I also really like about the balkonkraftwerk, that it produces electricity right where it’s used.Where but not necessarily when it’s needed. Still it’s good to connect to grid through a wall plug, without expensive or permanent equipment.
The idea for the when-part is that people will have electric cars at home, which can double as a big battery, or as the other guy already said, you can buy dedicated storage, too.
You could also hook these storages up to the grid, and then have an algorithm decide to sell to the grid when electricity is expensive, or to charge from the grid while electricity is cheap, possibly even taking the weather forecast into account.
Definitely still lots of details to figure out, but I expect things to head that way…There are now small scale storage systems available to flatten the curve of production and increasenlocal consumption.
I agree. I often discuss this with friends and the argument of “our electricity network cant supply all that power” (which is true) is one i often counter with adding more solar panels, even to apartments.
