ᐅ New photovoltaic system with storage in a single-family house – experiences

Created on: 29 Aug 2016 10:59
B
berny
Hello everyone, has anyone already installed a photovoltaic system with storage? If so: How long have you had it, which brand, and what are your experiences? Is anyone planning (like me) to install such a system soon? Given the continuously decreasing feed-in tariffs, it is definitely worth considering. What key parameters are you using for your calculations? Thanks for specific answers!
berny31 Aug 2016 17:48
No, f-pNo; I just recently purchased the plot, and construction will begin next year. I’m currently gathering everything that should go into the house. Since I want to buy as little coal- and nuclear-generated electricity as possible, I’m taking a closer look at solar panels and storage systems and asking questions here in the forum. I’ve already learned a lot here. Financing is not an issue for us, which is why I’m even considering the battery. Maybe prices or usable capacity will improve by next year; we’ll see. Thanks for your heat pump figures—I also plan to build with a geothermal heat pump using ground probes.
Best regards, Bernd
T
toxicmolotof
31 Aug 2016 19:00
Photovoltaics are not the only way to achieve 100% green electricity. Many providers offer pure green electricity for 1 cent/kWh in addition to the usual electricity mix. Some providers no longer have any standard electricity mix at all.

Nuclear and lignite coal power usually supply the industry sector.
G
Grym
31 Aug 2016 19:49
The electricity price has not actually increased but only changed due to legal regulations. This cannot be expanded indefinitely.

1998: 17.11 cents/kWh, including 0.08 cents/kWh taxes and levies = 17.03 cents/kWh without taxes and levies
2016: 28.69 cents/kWh, including 9.27 cents/kWh taxes and levies = 19.42 cents/kWh without taxes and levies

14% real inflation over 18 years, which is less than 1 percent per year.

According to long-term forecasts, the Renewable Energy Act surcharge will decrease again. Current feed-in tariffs have fallen sharply recently, few new systems are being installed, and old systems are being phased out. Specifically, it is expected to decline rapidly from 2024 onwards.

Hysteria or fear of constantly rising electricity prices is therefore unwarranted. A well-insulated house with a ground source heat pump, along with energy-efficient appliances (if you are buying new anyway) and lighting, already means a lot has been done to keep ongoing costs low in the long term.
berny31 Aug 2016 20:26
@ Grym: That’s exactly how I want to build, and a bit of a “model railway” – meaning photovoltaic panels with a battery – will be included as well.
I just handle the electricity cost calculations differently: In 1998, I had to pay 17 cents/kWh out of my own pocket – regardless of who or why.
In 2016, I have to pay 29 cents/kWh out of my own pocket, no matter who or why. That’s about 70% more for my budget than in 1998... just imagine continuing like that into the future. In 18 years, I definitely won’t have 70% more income than today – if I’m still even alive then...
But that’s okay, this forum is meant for exchanging ideas anyway, and I already read many experiences and opinions here that are helpful.
Best regards, Bernd
RobsonMKK31 Aug 2016 20:49
You didn’t understand what Grym was trying to tell you.
The price increase is coming to an end, or rather, it will slow down. They simply cannot keep adding more and more taxes on it.
berny31 Aug 2016 21:02
I fully understand what he thinks; I’m just too old to believe it. Taxes can always be increased everywhere, depending on the financial situation. How often have taxes and additional charges on electricity (and other things) actually been reduced for the end consumer in the last 20 or 30 years? I really don’t want to get political, but: Who do you think will ultimately pay for all these Renewable Energy Act schemes, discounts for large consumers, new power lines, nuclear power plant decommissioning, and final storage facilities? I believe it will be the “ordinary small” end consumers through further charges, surcharges, and so on. And that’s why I want to stay out of it as much as possible in the long term. Everyone just has their own opinion about the future...

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