ᐅ Waiving Feed-in Tariffs: Is It Always Feasible? Storage System Prices?
Created on: 18 Jul 2022 12:52
N
NBN2022
Hello everyone,
we are planning a small 5.7 kW peak system. We are still undecided about whether to include a battery storage or not. Through our installer, we have been offered a battery with 5.12 kW capacity for just under €10,000. That seems very expensive to me. Is it usually possible to get it cheaper if added later? Including installation?
My main question is this: assuming an annual electricity generation of 5,000 kWh, minus self-consumption (depending on whether there is a battery or not), there is not much left to sell back to the grid operator. Plus, the “effort” with the tax office... Despite simplifications for smaller systems, as far as I know you still have to handle the VAT return... We would gladly do without those few euros entirely if it means we are completely “off the hook” regarding the tax office. Is that possible?
Thank you very much for your help!
we are planning a small 5.7 kW peak system. We are still undecided about whether to include a battery storage or not. Through our installer, we have been offered a battery with 5.12 kW capacity for just under €10,000. That seems very expensive to me. Is it usually possible to get it cheaper if added later? Including installation?
My main question is this: assuming an annual electricity generation of 5,000 kWh, minus self-consumption (depending on whether there is a battery or not), there is not much left to sell back to the grid operator. Plus, the “effort” with the tax office... Despite simplifications for smaller systems, as far as I know you still have to handle the VAT return... We would gladly do without those few euros entirely if it means we are completely “off the hook” regarding the tax office. Is that possible?
Thank you very much for your help!
D
Deliverer18 Jul 2022 15:32Would the road authority notice if you drive 150 km/h (93 mph) on a country road at night? ;-)
Tolentino schrieb:
Tell me about a balcony power plant. Who checks or notices if I operate four or five of them simultaneously? Does the grid operator really notice right away?What would be the point of that (unless you still have old-style meters running backwards) – operating 5 balcony power plants each with 600Wp? 🙄 Or are you mining cryptocurrency in the sun, creating such a high "background noise"?
Tolentino schrieb:
But then you would have to operate it as an island system if the grid operator detects it otherwise so quickly. They won’t notice at all. Multiple units can be operated together; there are just a few details to consider. The current limits for these balcony power systems are set so they can be used in any house or apartment. If you have proper wiring and distribute the load across different phases, it does not cause any issues.
Alex124 schrieb:
You won’t notice any difference. Running several is possible, there are just a few details to consider. The current limits for these balcony solar systems are designed so they can be used in all houses/apartments. If you have proper wiring and distribute the load across different phases, it’s not a problem at all.I suspect the same. The only thing I don’t understand is the purpose of running several. One balcony solar system nicely covers the baseline consumption of the fridge and other appliances, etc. But every additional balcony solar system feeds power into the grid without compensation since they are exempt from registration.