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I moved back to Poland from Italy in 2019 just to be blasted with a 36°C heatwave. I didn't think Italian weather would follow me here. Anyway I'm thinking ab

by Tade0 3y ago

I moved back to Poland from Italy in 2019 just to be blasted with a 36°C heatwave. I didn't think Italian weather would follow me here. Anyway I'm thinking about installing solar panels totalling 800W (maximum allowed without additional permits) on my balcony next season and powering a small AC unit off of that - I suppose it's fair, considering it will be running using renewable energy and only when it's actually needed.

jacquesm 3y ago
> maximum allowed without additional permits Why on earth would a government put up barriers to energy independence? Is this because the Polish grid is not stable enough to deal with a substantial fraction of power from renewables or to protect commercial interests?
- efrafa 3y ago
  Same in Slovakia. Max is 11kwt. Its because of taxes. Anything above 11 is not considered residential any more, and you have to pay taxes on electricity you make and sell to the grid.
  - jacquesm 3y ago
    11KW is fairly massive though, I'm at about that and I've had to beef up quite a bit of the installation to be able to do this in a responsible way.
    - efrafa 3y ago
      I have 11kwt and its pretty great. Inverter heats up pretty crazy though :( 40C in my storage room where its located. Would never buy Huawei again.
- Tade0 3y ago
  That's actually part of the Commission Regulation EU 2016/631 and I misspoke - 800W is how much you can have without reporting it, provided you're not selling energy back. Specific regulations for on-grid systems in Poland are: -3,68kW limit for single -phase installations - that's actually a technical limitation. -10kW limit to receive subsidies for purchase of the system. -50kW limit for net-billing as a private person, but you'll have to first ensure your connection has the capacity to handle that - it's usually 12kW or less, so you'd need to apply for an increase, which will go through depending on the infrastructure in your area. Overall large PV farms in Poland lately went through series of temporary downtime in situations where the grid went above the safety threshold of 253V, but prosumers were largely unaffected by this. Everyone is in on it because panels are cheap and electricity has become expensive, so the investment pays itself off in a few years - especially when you go over the subsidised limit of 2600kWh annually per household with children. My sneaky plan with those panels is to remain below that threshold.

by Tade0 3y ago

jacquesm 3y ago

> maximum allowed without additional permits Why on earth would a government put up barriers to energy independence? Is this because the Polish grid is not stable enough to deal with a substantial fraction of power from renewables or to protect commercial interests?

efrafa 3y ago
Same in Slovakia. Max is 11kwt. Its because of taxes. Anything above 11 is not considered residential any more, and you have to pay taxes on electricity you make and sell to the grid.
- jacquesm 3y ago
  11KW is fairly massive though, I'm at about that and I've had to beef up quite a bit of the installation to be able to do this in a responsible way.
  - efrafa 3y ago
    I have 11kwt and its pretty great. Inverter heats up pretty crazy though :( 40C in my storage room where its located. Would never buy Huawei again.
Tade0 3y ago
That's actually part of the Commission Regulation EU 2016/631 and I misspoke - 800W is how much you can have without reporting it, provided you're not selling energy back. Specific regulations for on-grid systems in Poland are: -3,68kW limit for single -phase installations - that's actually a technical limitation. -10kW limit to receive subsidies for purchase of the system. -50kW limit for net-billing as a private person, but you'll have to first ensure your connection has the capacity to handle that - it's usually 12kW or less, so you'd need to apply for an increase, which will go through depending on the infrastructure in your area. Overall large PV farms in Poland lately went through series of temporary downtime in situations where the grid went above the safety threshold of 253V, but prosumers were largely unaffected by this. Everyone is in on it because panels are cheap and electricity has become expensive, so the investment pays itself off in a few years - especially when you go over the subsidised limit of 2600kWh annually per household with children. My sneaky plan with those panels is to remain below that threshold.