Wind and Solar to Power Conventions

In a way, I find it humorous that the power company that will supply electricity to both the Republican National Convention and the Democratic National Convention is touting the fact that the electrical requirements of both conventions will be provided by wind and solar energy. I thought that was historically the case -- even without the involvement of a power company. You would think that there would be sufficient "hot air" in the speeches and enough "sunshine blown-up-the-skirts" of attendees that external power sources would be unnecessary! I would rather see the air let out of some inflated egos and a little sunshine on the backroom shenanigans.