Deep geothermal is the only renewable that is reliable enough to make a substantial impact on our energy portfolio. Wind, solar and tidal are not going to get us anywhere.
We should build nuclear, extract shale and make serious investments in geothermal energy production.
I would counter that we should go wind and maintain our current coal/gas/nuke for the next 20-30 years then switch to Thorium as India will have it perfected by then.
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