Energy yield and amortisation

Of course, the yield from electricity costs alone is not the decisive factor. Many factors come together. But: the higher the self-consumption of the generated electricity, the better it is in general. The income statement also depends on the price of the electricity purchased and the remuneration for the supply of electricity. One thing is clear: Electricity costs, which arise solely from the generation of electricity from primary energy sources, are far too low, because the real damage to the climate and the environment is not included. Even if a CO2 tax has to be paid on the electricity price. How do you feel about that? How can nature and environmental protection be quantified?