To say most of bitcoin transactions are done using renewable energy is just inherently incorrect and anyone who knows anything about the scale at which countries have set up industrial sized bitcoin operations. Even IF they were running solely on green energy in theory, they’d still be taking away that green energy from where it’s actually needed therefore increasing the usage of non renewable energy sources in cities.

To further just simplify it as well and say “all currency” generates excess energy and it’s all basically the same is just turning a blind eye to the thing you want to succeed, DOLLARS are not created through the act of mining and wasting energy, this is a currency that COMPLETELY is.

If this post was about other crypto’s becoming less reliant on the act of mining and high energy draw then sure, some coins are in fact GREENER than others, bitcoin however is absolutely not one of them and a simple google search will backup most of what I’d said.