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re: Solar Panels - Yay or Nay
Posted on 7/14/23 at 2:52 pm to billjamin
Posted on 7/14/23 at 2:52 pm to billjamin
quote:quote:
Then you find out soar panels only last about 25 years
This is one of the many ways i know you have no clue what you're talking about.
uh, what?
* most residential solar panels should operate for 25 years before degradation (or reduced energy production) is noticeable.
* solar inverters generally last 10 to 15 years.
* Tier One manufacturers have higher standards, but their solar panels often have a higher output after 25 years in comparison to Tier Two or Tier Three panels. The degradation rate for Tier One solar panels is 0.30% annually compared to 0.50% for Tier Two and 0.80% for Tier Three. The catch is that Tier One panels generally cost 10% to 30% upfront.
* recent reports from NIST highlight a trend of panels failing decades before expected. For some models, there has been a spike in the number of cracked backsheets.
* if left outside for long enough, any plastic-based backsheet will start to fall apart. Some plastics deteriorate much more rapidly than others. “In the 2010 to 2012 timeframe, many modules were deployed containing polyamide-based backsheets, which presented dramatic cracking failure in as little as four years despite meeting standard requirements".
* degradation rate of solar panels has improved for the better during recent years. If you have an older model, it may have degraded faster than current industry standards.
* exposure to extreme weather, such as hail, high temperatures, and high winds, will degrade your panels faster. Prolonged exposure to extreme heat reduces a solar panel’s efficiency, compromising the capabilities of your energy system.
* Florida is one of the best states to live in if you want to use solar energy. Most residential solar panels in Florida last around 25 to 30 years
1
Posted on 7/14/23 at 2:55 pm to RobbBobb
quote:
uh, what?
They last much longer. They degrade, but they don't crap out. Anyone who doesn't understand that nuance or have the ability to discuss it should shut the frick up and stop giving people advice.
ETA
quote:
* most residential solar panels should operate for 25 years before degradation (or reduced energy production) is noticeable.
We use 25 years as an economic useful life. They can just sit there and keep cranking our free ROI+ power.
quote:
* solar inverters generally last 10 to 15 years.
Blended across mid and top tier yes. Stick to SolarEdge or Enphase and you'l probably be fine. I could also make a recommendation on how many $/kWp/Year to save to create a mini O&M fund.
quote:
* Tier One manufacturers have higher standards, but their solar panels often have a higher output after 25 years in comparison to Tier Two or Tier Three panels. The degradation rate for Tier One solar panels is 0.30% annually compared to 0.50% for Tier Two and 0.80% for Tier Three. The catch is that Tier One panels generally cost 10% to 30% upfront.
I disagree with those deg numbers and argue with NREL about them a lot but it's their published numbers and Dr Jordan is irritating to deal with. Also, only buy tier 1.
quote:This really only applies to old shite. Modern tier 1 modules are lightyears ahead of those.
* recent reports from NIST highlight a trend of panels failing decades before expected. For some models, there has been a spike in the number of cracked backsheets.
* if left outside for long enough, any plastic-based backsheet will start to fall apart. Some plastics deteriorate much more rapidly than others. “In the 2010 to 2012 timeframe, many modules were deployed containing polyamide-based backsheets, which presented dramatic cracking failure in as little as four years despite meeting standard requirements".
* degradation rate of solar panels has improved for the better during recent years. If you have an older model, it may have degraded faster than current industry standards.
* exposure to extreme weather, such as hail, high temperatures, and high winds, will degrade your panels faster. Prolonged exposure to extreme heat reduces a solar panel’s efficiency, compromising the capabilities of your energy system.
quote:
* Florida is one of the best states to live in if you want to use solar energy. Most residential solar panels in Florida last around 25 to 30 years
Agreed. Fl is solid.
This post was edited on 7/14/23 at 3:07 pm
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