Alternative energy is a long way from replacing fossil fuels...even with all the advancements in recent years. I have a Son-in-law who is an executive for a local solar power company, and they are quite busy installing commercial applications. However, even at his cost, it would cost me thousands of dollars to get off the grid. Wind power is good in some areas...there is a band of the nation from Nebraska through northern Texas that gets pretty steady wind, but much of the rest of the country would not be able to count on wind power reliability. Some of the coastal regions have steady off shore winds, but efforts to put windmills in those areas have met with opposition because "it would spoil the view". Nuclear power has the problem with spent fuel rods. The government spent a fortune to build the Yucca Mountain storage facility in Nevada...then Harry Reid and the environmentalists killed that project.
The ideal would probably be Nuclear Fusion for electrical generation, and Hydrogen power for vehicles. However, both of those methods are still in their infancy, and it will be decades before they become practical...if ever. Nope, like it or not, we are stuck with oil, coal and natural gas for the foreseeable future, and efforts to kill those sources will just impact our lives in a negative, and expensive, fashion. I applaud efforts to reduce consumption, and make fossil fuel a cleaner energy source, but they way some of these people talk, they would shut down all our current sources...and THEY would scream the loudest when living by candlelight and cooking over a campfire.