posted on Nov, 23 2021 @ 05:40 AM
a reply to: HawkEyi
No that's not right, nuclear is the cheapest, renewables like PV need 2.5 years to harvest the energy needed to produce it.
You can roughly calculate 1000kWh/kWp. So a 300Wp module that costs around 80€ will bring 300kWh a year times 0.29€. Now it depends on how much
you would pay or if you get any money providing power to the grid.
If we calculate with 0.29€/kWh that you would have to pay buying electricity, that means a single module (without the inverter and cables and
installation) will financially ROI in about a year. With inverter calculated, it's a bit longer.
But you can count on panels being good for 20 years and inverter around 10 years. I know a lot of pv plants where the inverters are 15 year old and
had no fault yet.
edit on 23.11.2021 by ThatDamnDuckAgain because: (no reason given)