Nobodybusiness
Solar Sponge.
.315 euro per KWH wholesale if my math is right.
If operating cost is twice generation / Purchase cost then consumers are paying .63 Euro per KWH..
.315 euro per KWH wholesale if my math is right.
I miss Ozs and their knack for language, had great time in your country visiting as a US Marine. Carry on with the great thread.It's not quite accurate but close enough to show our progress (Aussie pesos).
Wow I'm feeling good about my $37.63/MWh off peak rates
.315 euro per KWH wholesale if my math is right.
If operating cost is twice generation / Purchase cost then consumers are paying .63 Euro per KWH..
Do you know how old the founder of this forum is?On the other hand, DIY types are becoming a rare breed. Many young people can't change a tire, much less build a solar power system. The average age here is probably 60.
He is a remarkable , one of a kind character…a total anomaly..Do you know how old the founder of this forum is?
And generalization is dumb.He is a remarkable , one of a kind character…a total anomaly..
Not even close to the norm… …
yep, and in the netherlands ( my location) its even worse
my comment was neither ,,it was exactly on point …the risky rob OP that you responded to is correct also ..And generalization is dumb.
In modern panels there is a ~2% (give or take) degradation in the first minutes/hours of exposure to light. This is normal and is expected.But, i sure haven't studied the topic! I'm curious to know. About the only thing i've read/heard is that panels suffer a pretty dramatic dropoff fairly early on (10-20%?) and then decline much slower for the rest of their life.
That article seems to indicate that the degradation is mostly due to exposure and less to energy production.In modern panels there is a ~2% (give or take) degradation in the first minutes/hours of exposure to light. This is normal and is expected.
Thereafter panels decline in performance at less than 0.5% per year. You should expect about 80% of rated capacity after 25 years. Some high quality panels will be 90% or better. This assumes they are not mistreated. Here's an article on the topic:
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Do Solar Panels Degrade Over Time? Yes, But Not By Much
Learn about solar panel degradation rates, why they degrade and by how much. Discover brands that degrade the least and what to look for on the data sheet.www.solarquotes.com.au
Great, even less of an issue than i had assumed. I prefer to be a pessimist and assume everything is worse than claimed so i don't get left holding the bag, but so far i have only bought HIGHLY depreciated used panels. If i was paying top dollar for new I'd sure have looked into this before buying, and would actually give a crap about a warranty.In modern panels there is a ~2% (give or take) degradation in the first minutes/hours of exposure to light. This is normal and is expected.
Thereafter panels decline in performance at less than 0.5% per year. You should expect about 80% of rated capacity after 25 years. Some high quality panels will be 90% or better. This assumes they are not mistreated. Here's an article on the topic:
![]()
Do Solar Panels Degrade Over Time? Yes, But Not By Much
Learn about solar panel degradation rates, why they degrade and by how much. Discover brands that degrade the least and what to look for on the data sheet.www.solarquotes.com.au
This is on point. It is HIGHLY likely (especially in today's economic environment) that your panel manufacturer will not exist in 2047. I recently did an 8Kw panel upgrade with used panels for around 25% of new panels and producing around 70% of rated power. It keeps my charge controllers running cool. If you have the "real estate", used panels are the way to go for a DIYer.Great, even less of an issue than i had assumed. I prefer to be a pessimist and assume everything is worse than claimed so i don't get left holding the bag, but so far i have only bought HIGHLY depreciated used panels. If i was paying top dollar for new I'd sure have looked into this before buying, and would actually give a crap about a warranty.
But one thing that article never really mentioned is that for the most part if a company goes under or morphs significantly enough, your warranty is meaningless, and i frankly assume most warranties in excess of 10 yrs are getting into that range. Not to say that the panels SHOULDN'T be warrantied for longer than that, but i wouldn't let the difference between a 20 and a 25 year warranty be much of a factor in my decisions because when you get far enough out into the future, the likelihood of one or the other business entity still existing in a form that will honor a warranty claim, becomes highly dubious. I'd probably take 1% higher efficiency up front, than 5 extra years on a warranty from a company that may not still exist by then.
Vaguely relevant:
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Most solar panel warranties are useless anyway.But one thing that article never really mentioned is that for the most part if a company goes under or morphs significantly enough, your warranty is meaningless, and i frankly assume most warranties in excess of 10 yrs are getting into that range.
Well I should also point out that I was providing an article specifically about the question of panel degradation, not warranties.But one thing that article never really mentioned is that for the most part if a company goes under or morphs significantly enough, your warranty is meaningless, and i frankly assume most warranties in excess of 10 yrs are getting into that range.
Fuel costs have risen significantly, but nowhere near the ~20x that wholesale rates have. And delivery costs have probably risen very little. So they have a lot of profiteering..315 euro per KWH wholesale if my math is right.
If operating cost is twice generation / Purchase cost then consumers are paying .63 Euro per KWH..
I stayed at a Holiday Inn Express last night, so I'm qualified to argue the inverse. Converting light energy to electrical energy will produce heat.On to panel aging and usage. I'm going to guess that most of the degradation is from thermal cycling. If I'm taking electrical energy from that panels that's sunlight that isn't getting turned into heat in the panels, causing even higher temps.
Good point. In a closed system matrix, that would give around 20% energy transfer to electricity less whatever energy transfer coefficient exists. Seems like a net gain. I'll check into the Motel 6 and get back to you.The light is hitting the panel regardless of loaded or not. If you're taking energy out in the form of electricity that energy is NOT heating the panel.
Absolutely. None of my skepticism was directed at you and it was admittedly a tangent for me to bring it up.Well I should also point out that I was providing an article specifically about the question of panel degradation, not warranties.