No matter what sources of energy we develop, the first consideration should be efficiency (and I'm not talking about freezing in the dark type of ideas).
Cutting down on all the ways we waste energy is important for our national security and economic stability. Building efficient buildings, transportation systems and land use planning is fundamental.

Efficiency is the foundation concept at the Rocky Mountain Institute.

Sweaters Are Not the Answer

snip
"It's cheaper to save fuel than it is to go find more of it. And it's ineffective to put our efforts into developing biofuels or renewable energy if we pump it into an inefficient system that fritters most of it away."

Alice