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Forums
Renewable energies
solar systems
Discover how to generate environmentally friendly electricity with solar panels – learn what to pay attention to when planning, installing, and using them!
E
Effect of solar systems with storage on the power grid
5 Stern(e)
4 Voting
2024-08-18 14:30:01
Answers
7
P
Photovoltaic system, house, or garage roof?
4.5 Stern(e)
4 Voting
2024-04-05 23:37:27
Answers
5
C
Clicking sounds in the circulatory system during thermal stagnation
5 Stern(e)
4 Voting
2023-10-31 13:18:47
Answers
6
W
Warning and information letter about Indach thermal collectors
4.5 Stern(e)
6 Voting
2023-08-29 15:27:02
Answers
5
R
Roof covering and solar technician selection - Decision?
4.5 Stern(e)
9 Voting
2022-08-10 18:21:49
Answers
98
2
20 kWp system - combining a 10 kW hybrid inverter with a 10 kW standard inverter?
5 Stern(e)
5 Voting
2022-08-25 17:46:26
Answers
0
C
Consultation for the installation of solar modules on a pitched roof
4.5 Stern(e)
3 Voting
2022-08-14 07:28:59
Answers
5
S
Solar system for rent - is the offer okay?
5 Stern(e)
6 Voting
2021-09-28 08:12:05
Answers
10
W
What should be the minimum antifreeze level in a solar system
4.5 Stern(e)
6 Voting
2021-09-20 18:09:45
Answers
2
I
Is a solar power system worth it for us?
4.5 Stern(e)
5 Voting
2021-05-14 22:00:31
Answers
19
S
Solar thermal system efficiency improvement
4.5 Stern(e)
6 Voting
2020-09-11 07:37:28
Answers
19
S
Solar Pump Wilostar Single-family House Setting - 3 Levels?!
5 Stern(e)
4 Voting
2021-04-07 11:10:10
Answers
1
S
Solar technician from Münsterland / wanted regionally
4.5 Stern(e)
5 Voting
2020-10-03 21:55:36
Answers
12
U
Upcoming roof renovation, what options are there for solar systems?
4.5 Stern(e)
3 Voting
2020-12-15 18:39:34
Answers
6
A
Are the solar systems and solar wiring installations compliant with standards?
4.5 Stern(e)
6 Voting
2020-11-09 05:02:10
Answers
6
S
Solar system with storage in the garage, possible?
4.5 Stern(e)
3 Voting
2020-10-09 18:59:41
Answers
28
W
Which storage system in combination with a solar system?
4.5 Stern(e)
4 Voting
2020-09-21 11:07:26
Answers
11
S
Solar system at 2-family house, splitting the consumption
4.5 Stern(e)
3 Voting
2020-08-14 09:41:21
Answers
5
S
Solar panels not available - surcharge / cancellation possible?
4 Stern(e)
4 Voting
2020-07-17 12:49:05
Answers
20
C
Colored solar panels - who has installed such ones?
4.5 Stern(e)
4 Voting
2020-07-17 16:09:57
Answers
10
S
Solar possible, how do I proceed? Help, tricks and tips
4.5 Stern(e)
3 Voting
2020-05-12 09:49:18
Answers
26
S
Solar system recommendations/experiences
4.5 Stern(e)
3 Voting
2019-12-13 15:46:42
Answers
6
S
Should the solar fluid be drained during winter? Frost damage?
5 Stern(e)
6 Voting
2019-11-21 13:13:02
Answers
2
A
Acquisition of the solar thermal system?
4.5 Stern(e)
5 Voting
2019-08-19 14:47:24
Answers
1
F
Flat collector vs tube collector
4.5 Stern(e)
3 Voting
2019-02-14 13:52:43
Answers
23
A
Are solar systems and heat pumps economical?
4.5 Stern(e)
4 Voting
2012-01-26 09:08:56
Answers
7
O
Orientation of the solar panels
5 Stern(e)
4 Voting
2018-11-15 13:57:03
Answers
4
S
Solar thermal energy: buffer storage size / Legionella
5 Stern(e)
5 Voting
2018-09-14 07:34:58
Answers
3
E
Experiences with Caterva Sun battery storage
4.5 Stern(e)
7 Voting
2017-06-28 21:41:28
Answers
31
S
Storage heats collector
4 Stern(e)
4 Voting
2018-07-26 11:16:16
Answers
10
S
Solar thermal and pellet heating, heating support / hot water
5 Stern(e)
5 Voting
2018-07-26 06:53:06
Answers
16
H
How do I find the optimal solar panels?
5 Stern(e)
3 Voting
2018-07-24 17:19:28
Answers
3
S
Solar yield is not readable
4.5 Stern(e)
4 Voting
2018-05-24 23:11:09
Answers
28
P
Problems with the alignment of our planned solar installation
4.5 Stern(e)
4 Voting
2018-02-01 21:10:08
Answers
26
S
Solar system: In-roof or On-roof?
5 Stern(e)
3 Voting
2017-01-14 18:13:54
Answers
5
I
Is a gas boiler possible without solar?
4.5 Stern(e)
4 Voting
2016-01-11 15:24:20
Answers
42
U
Underfloor heating and solar thermal
4.5 Stern(e)
3 Voting
2017-09-18 11:48:42
Answers
7
I
Is the solar system on the roof worthwhile?
4.5 Stern(e)
4 Voting
2017-07-10 18:07:16
Answers
30
S
Solar on the garage roof
4.5 Stern(e)
4 Voting
2017-05-17 09:50:51
Answers
3
U
upgrade solar thermal
4.5 Stern(e)
5 Voting
2016-10-09 17:30:01
Answers
1
I
Is light and electricity possible through solar power for my shed?
4.5 Stern(e)
5 Voting
2016-09-27 16:35:54
Answers
7
B
BAFA funding / solar thermal for new construction
4.5 Stern(e)
10 Voting
2016-09-14 09:31:05
Answers
0
P
Position of the solar panels on a southeast or southwest roof?
4.5 Stern(e)
4 Voting
2016-08-15 09:55:07
Answers
5
S
Solar thermal - What distances to the buffer are still reasonable?
4.5 Stern(e)
3 Voting
2016-04-10 13:24:26
Answers
2
E
Experiences with Reinhard solar technology
4.5 Stern(e)
3 Voting
2016-03-23 09:28:39
Answers
4
E
Experiences with solar roof tiles/solar tiles
4.5 Stern(e)
4 Voting
2012-03-04 11:04:14
Answers
6
C
Clearing snow from the solar thermal system. What are your solutions?
4 Stern(e)
3 Voting
2012-11-04 19:27:11
Answers
9
S
Simulator annual yield for hot water
4 Stern(e)
5 Voting
2015-04-27 17:00:45
Answers
5
C
Cardinal Direction Solar
4.5 Stern(e)
4 Voting
2015-10-08 09:51:46
Answers
8
I
Is a solar system a fire risk?
5 Stern(e)
3 Voting
2012-06-13 19:42:09
Answers
9
W
What type of solar energy?
4.5 Stern(e)
5 Voting
2010-05-01 10:04:43
Answers
6
W
Wide solar collectors
4 Stern(e)
5 Voting
2015-04-25 17:03:02
Answers
1
O
Outdoor lights powered by solar energy
4.5 Stern(e)
3 Voting
2009-07-09 10:58:16
Answers
12
S
Solar system for garage or house connection?
5 Stern(e)
3 Voting
2015-02-17 14:44:16
Answers
8
2
2 Power Modules - Solar power and heat in one
4 Stern(e)
5 Voting
2014-12-16 14:34:14
Answers
1
S
Solar system for carport
4.5 Stern(e)
3 Voting
2011-10-28 13:43:27
Answers
7
I
Is a solar system still worthwhile? How many years does it take to start benefiting from it?
5 Stern(e)
5 Voting
2014-01-28 14:59:36
Answers
15
R
Renewable Energy Act surcharge also on solar systems in single-family houses
4.5 Stern(e)
4 Voting
2014-06-13 09:19:35
Answers
8
W
What will happen to the solar subsidy feed-in tariff?
5 Stern(e)
4 Voting
2012-06-14 23:01:13
Answers
8
S
Solar collector - heating support or not?
4.5 Stern(e)
3 Voting
2014-02-19 16:36:37
Answers
10
D
Do solar collectors effectively support heating?
4.5 Stern(e)
3 Voting
2014-02-21 08:08:13
Answers
7
E
Energy saving certificate, coverage share/solar system, which values?
4 Stern(e)
3 Voting
2013-07-24 08:18:47
Answers
5
S
Solar system on the roof or integrated into the roof, which is better?
4.5 Stern(e)
3 Voting
2013-05-20 20:31:05
Answers
8
K
KFW70 photovoltaic instead of solar thermal, how much collector area?
4.5 Stern(e)
3 Voting
2013-03-27 03:14:59
Answers
4
S
Solar system despite shade in winter?
4.5 Stern(e)
5 Voting
2013-01-16 19:27:09
Answers
2
S
Solar yield too low; how to adjust three flat collectors
4.5 Stern(e)
5 Voting
2012-10-28 14:25:51
Answers
32
Q
Question about the solar system?
5 Stern(e)
5 Voting
2012-09-08 19:45:59
Answers
3
C
Clean the solar system yourself regularly?
4.5 Stern(e)
5 Voting
2012-07-02 10:17:01
Answers
20
W
Which solar panel is the best
4.5 Stern(e)
4 Voting
2012-07-17 18:24:49
Answers
0
T
The Makers of the Day After Tomorrow - Baden-Württemberg State Anniversary 2012
4.5 Stern(e)
3 Voting
2012-03-26 11:18:59
Answers
9
S
Solar system for carport - does anyone know about it?
4.5 Stern(e)
5 Voting
2011-10-28 19:26:12
Answers
6
I
Is it sensible to retrofit a solar system on an old roof?
4.5 Stern(e)
3 Voting
2011-12-22 12:24:32
Answers
4
S
Solar system, yes or no?
4.5 Stern(e)
4 Voting
2011-07-10 18:59:10
Answers
33
A
Affordable solar system - experiences
4.5 Stern(e)
5 Voting
2011-08-10 22:02:44
Answers
5
I
Is a solar power system worth it, experiences?
4.5 Stern(e)
4 Voting
2008-12-01 09:01:22
Answers
14
N
New construction without solar system
5 Stern(e)
5 Voting
2011-03-28 22:20:08
Answers
10
D
different inclination of solar collectors
5 Stern(e)
3 Voting
2011-03-17 12:09:44
Answers
7
H
Heat pump and solar thermal?
4.5 Stern(e)
5 Voting
2011-03-09 14:46:00
Answers
1
W
Without solar on KfW 70? Achieve KfW 70 differently?
4.5 Stern(e)
3 Voting
2011-02-24 10:01:16
Answers
4
S
Solar systems in winter
4.5 Stern(e)
3 Voting
2010-12-03 01:03:18
Answers
9
I
Is a solar power system worth it? Experiences?
4.5 Stern(e)
4 Voting
2009-02-20 08:07:13
Answers
14
W
Which solar energy systems are the most cost-effective?
4.5 Stern(e)
4 Voting
2008-06-15 14:37:30
Answers
1
S
Solar system for hot water with 5 sqm or 10 sqm?
4.5 Stern(e)
3 Voting
2010-07-25 14:50:43
Answers
5
R
Renting solar systems on the roof?
4 Stern(e)
5 Voting
2007-12-08 18:51:06
Answers
8
S
Support programs for solar collectors on house roofs
5 Stern(e)
4 Voting
2008-07-29 23:48:00
Answers
4
S
Service water with solar?
5 Stern(e)
4 Voting
2008-01-14 23:27:52
Answers
3
S
Solar system pros and cons
5 Stern(e)
4 Voting
2007-12-05 19:33:13
Answers
7
Oben