[David Kruetzer is research fellow in energy economics and climate change at the Heritage Foundation in Washington, D.C.. This is his first post at MasterResource.]
Building on the misconception that renewable energy is cheap, some legislators and activists propose mandating that minimum fractions of our electric supply come from designated renewables. Wind and solar are at the top of this list. Al Gore wants 100 percent renewables in less than a decade; others propose less ambitious targets.
The problem is that renewables are expensive, not to mention unreliable and environmentally questionable. Mandates would only force consumers to pay ever higher electric rates as this minimum in an renewable electricity standard (RES) grows year by year.
The Center for Data Analysis at the Heritage Foundation recently analyzed the economic impact of an RES, such as proposed in federal legislation.…
Continue ReadingEditor’s note: This is the conclusion of the series that provides an essential basis for the understanding of energy transitions and use. The previous posts in this series can be seen at:
Part I – Definitions
Part II – Coal- and Wood-Fired Electricity Generation
Part III – Natural Gas-Fired Electricity Generation
Part IV – New Renewables Electricity Generation
America’s dominant mode of electricity generation is via combustion of bituminous and sub-bituminous coal in large thermal stations. All such plants have boilers and steam turbogenerators and electrostatic precipitators to capture fly ash, but they burn different qualities of coal that may come from surface as well as underground mines, have different arrangements for cooling (once-through using river water or various cooling towers) and many have flue gas desulfurization to reduce SO2 emissions.…
Photovoltaic Electricity Generation
Satellite measurements put the solar constant – radiation that reaches area perpendicular to the incoming rays at the top of the atmosphere (and that is actually not constant but varies with season and has negligible daily fluctuations) – at 1,366 W/m2. If there were no atmosphere and if the Earth absorbed all incoming radiation then the average flux at the planet’s surface would be 341.5 W/m2 (a quarter of the solar constant’s value, a sphere having four times the area of a circle with the same radius: 4?r…
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