Quote (Knoppie @ 4 Dec 2018 02:42)
Energy payback point in north Germany is <5 years on a product life of 30 years, unless you have a better source ofc.
Prioritizing international recycling/manufacturing standards in the future is a good idea to reduce current and avoid future ecological catastophies.
We can also think about a carbon tax placed on the production of solar panels based on a circular life cycle assessment (including recycling).
This will actually benefit solar panels produced in Europe at this time, compared to those made in China.
Maintenace, sound pollution, even horizon pollution, bird strikes, doesn't run all the time andddd... an energy payback at 1 year.. Making the shitty thing pretty effective:
"The emissions of greenhouse gases amounted to less than 7 g CO2-eq/kWh for onshore and 11 g CO2-eq/kWh for offshore."
Make plug in points at work as well, spread out the loading peaks. My pertrol car doesn't need to be completely full all the time, neither do electric cars for most ppl, even given that their "tank" is half the size. Spreading the charging load seems doable. (Plans even go as far as cooling refigirators before peak power consumption, or use it as a storage during surpluses). It does still mean that you need to increase possible electricity production from other sources than sun and wind produced locally, (inter)national infrastructure and/or storage. Thermal, bio, hydro, nuclear, fossil (with or without carbon capture). But that seems positive: combustion engines for vehicles are highly inefficient compared to power produced at electric plants. There is admittedly a loss due to transporting, converting and storing it. But it doesn't outweigh the energy loss of a piston going back and forth.
Think when announced Germany raised the bar to 40% in 2020 and 80-85% in 2050. Just before fukushima iirc. Theoretically possible, but a bit over ambitious indeed.
5 years is way too low
https://bazonline.ch/schweiz/die-verheerende-bilanz-von-solarenergie/story/26546197this is a swiss engineer claiming that you wont get the energy back with a 25 year lifespan, all things taken into account
the article refers to critics as well, who claim the opposite
when i have the time i will make some calculations myself
they are talking about chinese (or other asian) solar panels btw, ours are obviously better
the range of electric cars is already bad enough, i dont think people will appreciate having even less
this talk about storing energy somewhere.....i cant take that seriously sorry to say
as long as there is no technology that combines enough capacity, possibility for mass production and efficiency there is no reason to have that discussion