> No you can't (unless you do it yourself but the price is extremely high if you want uninterrupted power). What happens is: your provider purchase "green energy certificates" which means that some green electricity was generated on a sunny and/or windy day. When it's night and the wind don't blow, you use coal and gas as everyone else.
that is bullshit.
also besides that germany is small compared to other countries and dense, there is no time of the day where its nowhere windy nor sunny. so at the moment there is just no need to purchase green energy certificates for the bigger providers, they can either buy power from other providers or they can produce their green power.
and also it does not matter, since if you need 3kW and they can't deliver green power at the moment they will deliver more green power later, thats how it usually works.
> No storage is cheap enough to store solar and wind energy on day-to-day scale, let alone seasonally.
also bullshit.
it has nothing to do with cost, more with there is no storage for everybody.
most providers that offer 100% green power actually do generate the amount of power in green that you use (that is their premise) of course they can't create different power lines, thus it's a mix.
(in germany it's forbidden to mark your product as "100% green power" if you buy certificates, of course you can write it some where but if your contract states it, it would be illegal, but there is a difference between contract and marketing, of course... Energiewirtschaftsgesetz - EnWG ยง42)
that is bullshit. also besides that germany is small compared to other countries and dense, there is no time of the day where its nowhere windy nor sunny. so at the moment there is just no need to purchase green energy certificates for the bigger providers, they can either buy power from other providers or they can produce their green power. and also it does not matter, since if you need 3kW and they can't deliver green power at the moment they will deliver more green power later, thats how it usually works.
> No storage is cheap enough to store solar and wind energy on day-to-day scale, let alone seasonally.
also bullshit. it has nothing to do with cost, more with there is no storage for everybody.
most providers that offer 100% green power actually do generate the amount of power in green that you use (that is their premise) of course they can't create different power lines, thus it's a mix.
(in germany it's forbidden to mark your product as "100% green power" if you buy certificates, of course you can write it some where but if your contract states it, it would be illegal, but there is a difference between contract and marketing, of course... Energiewirtschaftsgesetz - EnWG ยง42)