ᐅ Is solar power feasible, and how do I proceed? Help, tips, and advice
Created on: 12 May 2020 09:49
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HilfeHilfe
Hello, we have a 6-year-old house with an air source heat pump and panels on the roof for water heating.
We are looking into solar panels for the roof—whether it makes economic sense, maintenance, self-consumption, feed-in, and so on.
Are there any subsidy programs, or what would be the best point of contact for me?
Online?
Locally, a plumber or an electrician?
We have 2 residential units; is it possible to split the energy consumption?
We are looking into solar panels for the roof—whether it makes economic sense, maintenance, self-consumption, feed-in, and so on.
Are there any subsidy programs, or what would be the best point of contact for me?
Online?
Locally, a plumber or an electrician?
We have 2 residential units; is it possible to split the energy consumption?
No, the electricity consumed on-site generally provides a better return. This can be increased with a storage system. However, since storage systems are still quite expensive, it is not cost-effective at the moment.
So, build a large system, use electricity primarily during sunlight hours (to increase self-sufficiency), and feed the surplus back into the grid. That way, you get the most benefit.
So, build a large system, use electricity primarily during sunlight hours (to increase self-sufficiency), and feed the surplus back into the grid. That way, you get the most benefit.
Specki schrieb:
No, the electricity you use yourself generally provides a better return. You could increase this with a battery storage system. But since storage systems are still quite expensive, it’s not really worth it at the moment.
So, build a large system, use electricity as much as possible during sunshine hours (increase self-sufficiency rate), and feed the rest into the grid. That way you get the most out of it.Unfortunately, you actually use the least electricity during sunshine hours...
seat88 schrieb:
Unfortunately, you actually use the least electricity when the sun is shining...Apart from winter, that’s pretty accurate for most cases. Washing machine, dryer, dishwasher with a timer, and cooking until 6 pm.seat88 schrieb:
Unfortunately, you use the least electricity when the sun is shining... Well, it really depends on your living situation.
For us, that's not the case. I'm only away from home for three days, I work from home on Monday, and I have Friday off. I spend the weekends at home.
My wife usually works from home or teaches her classes in the evening.
The kids are home in the afternoons and in bed in the evenings.
The washing machine, dishwasher, and dryer are some of the biggest electricity consumers. You can set them accordingly or just run them.
But yes, that's true. Many people find it a bit challenging, but you can still manage quite a bit if you want to.
Specki schrieb:
Well, it always depends on the living situation.
For us, it’s different. I’m only away from home for three days; on Monday, I work from home, and Friday is off. I’m home on weekends.
My wife mostly works from home or teaches her classes in the evenings.
The kids are at home in the afternoons and in bed at night.
Washing machines, dishwashers, and dryers are some of the biggest electricity consumers. You can adjust their settings or run them accordingly.
But yes, that’s true. Many people find it a bit challenging, but you can control quite a bit if you want to. I agree with that. Our base consumption is consistently around 300 Wh. All other devices each consume about 5 to 8 times that per unit. If you don’t manage that or leave things running unnecessarily, then the photovoltaic system basically only pays for itself through feeding electricity back to the grid and takes longer to break even. But once you get the hang of it, it’s actually fun to save electricity from the supplier.
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T_im_Norden14 May 2020 08:55Did you stay below the 10 kW limit for the roof installation, or do you have to pay the Renewable Energy Act surcharge?
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