Questions about solar applications that make use of the photovoltaic effect, especially solar panel and thin-film technologies.
Questions tagged [photovoltaics]
58 questions
14
votes
3 answers
Do solar cells age? Why, and how?
As I heard, the life expectancy of photovoltaic cells is normally some decades, as so. This is very long, regarding their high cost, it has significant (negative) effect on the total costs.
Why do they age? I can see the only possibility which could…
peterh
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2
votes
3 answers
Transferring energy generated by photovoltaic methods
One of the many challenges facing PV power generation is how to store surplus energy for night time demand. My question is this: since the sun is always shining somewhere on the planet, would it be possible to design an international smart energy…
grr808
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1
vote
0 answers
What could be the cause of these spikes in current when measuring it from a solar panel
I was measuring the current through a solar panel at different light intensities and I found that sometimes it caused large spikes in the current and I can't find a reason for this phenomenon. Is this a problem with my solar panel/measuring device…
DSONSD
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0
votes
1 answer
Beehive Exhaust Vent Solar Panel + CPU fan
Here’s an easy question
(I believe, knowing nothing about this subject.)
SMALL WEATHER-PROOF SOLAR FAN
A 3 in. diameter fan, powered by a solar panel. It will be mounted horizontally, face up, over a hole in the roof of my beehives. When the sun…
BEES-A-MILLION
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0
votes
0 answers
Fronius Gen24 5.0 inverter activates pv point and stops grid feed-in
I have a Fronius Symo GEN24 5.0 inverter and I experience a lot of activation of PV point some days and the same time the inverter stops the grid feed in.
(PV point activates when the public grid fails like power outage)
I have tried to discover…
Dániel Kis
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- 1
0
votes
4 answers
What is the definition of Building integrated photovoltaics?
What is the definition of BIPV?
Building integrated photovoltaics emerged as a new way of reducing energy consumption. However, the question is how do these systems work?
