Energy payback time
Energy payback time (Energy Amortization) is the amount of time that a solar system needs to generate as much energy as is needed to produce it.
Given the different technology forms, this value is between 0.79 years for CdTe for a ground mounted scenario and 1.30 years for silicon in the rooftop-private scenario.
All module types thus generate a multiple of the energy used for their production over their lifetime.
These values apply to Nuremberg, chosen as a central European location with good irradiation values. For Southern Europe, even better values would result.
Given that PV systems are becoming increasingly efficient, future energy payback times will be even lower.
Carbon footprint in comparison
We are committed to our product responsibilityand to the next generation, so accordingly we have firmly integrated environmental protection into our entire thinking and actions.
Our thin-film solar modules are the most eco-efficient in the entire solar industry. They produce clean energy - at the lowest cost - with the least impact on our environment.
With the lowest CO2 footprint and the shortest energy payback times, Calyxo's thin-film solar modules have a tremendous environmental advantage over other solar technologies.
Looking at all applications, the overall environmental impact of photovoltaic power generation is lower by a factor of 20 to 40 compared to average fossil fuel power generation.
gCO2-eq/kWh
Coil
Oil
Gas
Biomass
PV multi-Si
Nuclear
PV CdTe
Wind
Carbon footprint in detail
From an environmental point of view, the BOS (balance of system) plays a more significant role depending on the technology. The fact that module technologies have become progressively efficient over time means that the environmental contribution of the BOS to the overall result is becoming increasingly clear.
The carbon footprint results from the manufacture and use of all required components:
Module:
- Glass
- Semiconductor
- Laminate
- Frame
BOS (balance of system):
- Inverter
- Mounting system
- Cabling
gCO2-eq/kWh
