Hello everyone,
What do you think about the idea of using a photovoltaic system for domestic hot water heating, with self-consumption and feeding any surplus electricity into the grid — topic: Refusol photovoltaic heater?
Is it possible to achieve higher profitability compared to a solar thermal system? Has anyone built something like this?
And would this count as renewable energy? The current plan is a 365mm (14.4 inches) monolithic wall construction with Poroton T9 bricks and a gas condensing boiler, without mechanical ventilation with heat recovery.
Thanks for your feedback
Micha
What do you think about the idea of using a photovoltaic system for domestic hot water heating, with self-consumption and feeding any surplus electricity into the grid — topic: Refusol photovoltaic heater?
Is it possible to achieve higher profitability compared to a solar thermal system? Has anyone built something like this?
And would this count as renewable energy? The current plan is a 365mm (14.4 inches) monolithic wall construction with Poroton T9 bricks and a gas condensing boiler, without mechanical ventilation with heat recovery.
Thanks for your feedback
Micha
bortel schrieb:
and how is your system performing now?I can gladly send you a private message about it this evening. However, the most productive months (the summer months) are still ahead of me. Looking at the last two months compared to the winter months, I’m already looking forward to the coming months. 😊
S
Sebastian795 Jun 2015 10:17It must be said that these figures are only meaningful if you live practically in a village with the same orientation – otherwise, they are just a very rough estimate.
D
Doc.Schnaggls5 Jun 2015 10:23Hello,
we have a rooftop solar system (manufacturer Solarworld) with a capacity of 4.25 kWp.
The system has been operating since November 2014. The installation on the roof is almost perfectly oriented to the south (deviation about 5°).
I don’t check it every day, but since yesterday was one of the sunniest days since commissioning, I took a look – the inverter showed a daily production of 36 kWh.
Around noon, I also glanced at the display, which showed 3,980 W coming from the roof. Considering the calculated maximum capacity of 4,250 W, I find that quite good.
Regards,
Dirk
we have a rooftop solar system (manufacturer Solarworld) with a capacity of 4.25 kWp.
The system has been operating since November 2014. The installation on the roof is almost perfectly oriented to the south (deviation about 5°).
I don’t check it every day, but since yesterday was one of the sunniest days since commissioning, I took a look – the inverter showed a daily production of 36 kWh.
Around noon, I also glanced at the display, which showed 3,980 W coming from the roof. Considering the calculated maximum capacity of 4,250 W, I find that quite good.
Regards,
Dirk
Doc.Schnaggls schrieb:
We have a rooftop system (manufacturer Solarworld) with 4.25 kWp.
The system has been operating since November 2014. The roof orientation is almost perfectly south-facing (deviation about 5°).
I don’t check it every day, but since yesterday was one of the sunniest days since the system was commissioned, I took a look – the inverter showed a daily production of 36 kWh. That’s impressive – even though we also have an almost perfect south orientation, your smaller system produced more (I got 35.40) than ours.
Lexmaul79 schrieb:
Although you have to say that the numbers only make sense if you live practically in the same village with the same orientation – otherwise, it’s just a very rough estimate. Which confirms the statement of @Lexmaul79. In this case:
Baden-Württemberg > sun compared to Rhineland-Palatinate Mosel-Saar region (and I consider our region to be very sunny weather-wise)
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