John Shanahan, civil engineer, President of Environmentalists for Nuclear - USA: This is a simple, short comparison of wind, solar, fossil fuels and nuclear power. Two have extremely low energy density, require lots of materials, maintenance and tremendous volume of new parts every 20 to 30 years. They are also variable to non-existent sometimes and cause havoc with electrical energy grids for modern society. The other two are high to very high energy density and require much less land. The 2009 - 2017 White House, its Science Advisor, John Holdren, and Presidential Candidate Hillary Clinton are strong proponents of wind and solar energy, want significant reductions in use of fossil fuels and did little to promote nuclear power for the future. Most of the rest of the elected officials in the White House and Congress from the mid 1970s through 2018 have done little to develop a national energy plan. There are programs for assisting Americans with health care and retirement, but no national energy plan, except to use what is the cheapest or what is popular with voters today.