You're absolutely right. Every machine used to build a 'clean' power-pant is going to churn out pollutants, unless someone comes up with a solar-powered bulldozer sometime soon; all the plastics used in circuitry and wiring are made using toxic chemicals... even the 'clean' alternatives require a lot of mess, just to get underway.

It's basically going to take sweeping fundamental changes in every area of industry before things truly change. Because in every production line, every process that builds the things we use, traditional forms of energy are absolutely essential in this day and age.

It'll take time, but I think the change can be made.