[Editor note: Robert Bryce, senior fellow at the Manhattan Institute for Policy Research, is a leading researcher and disseminator of the problems of ‘green’ energy. His February 25, 2014, testimony before the Senate Committee on the Environmental and Public Works was published yesterday and today.]

In discussing energy sources, we must cast aside the social marketing of renewable energy and discard pre-conceived notions as to what qualifies as “green.” Instead, we must focus on basic physics and math.

I am an ardent proponent of nuclear energy because of its negligible carbon dioxide emissions and its incredibly high power density. No other form of energy production can produce as much energy from such a small footprint as a nuclear reactor. This is due to basic physics. Allow me to explain this by using a common metric in physics: power density, which is a measure of the energy flow that can be harnessed from a given area, volume, or mass.…

Cap-and-trade, carbon taxation, net social cost for carbon: all assume that increasing emissions of carbon dioxide (CO2) and other greenhouse gases by mankind have injurious effects that are not accounted for in private activity.  But the politically incorrect is intellectually correct: CO2 emissions make life better – even possible – for people, the economy, and the ecosphere.

Cost/Benefit Analysis

Weighing risks, costs and benefits is fundamental to life. We do it every day – when walking, driving, showering, heating our homes, and using stairs, ladders and tools; and when balancing the cost of new payments versus the benefits of a better home or car. The alternative is hunkering down in a bedroom or cave – until a lightning bolt, tornado, hurricane or armed burglar disturbs our false sense of security.

That is why government agencies are required to assess the benefits and costs of proposed regulations.…

“In this century the bulk of humanity will live in large densely populated cities. If the citizens of of these cities are to attain a high quality of life they will require large centralised energy generation. This is not a matter of ideological preference, but of engineering reality.”

– Robert Wilson, The Future of Energy: Why Power Density Matters, Energy Collective, August 8, 2013.

“There is no doubt that we in the United States need to alter our energy strategy. The question is how we will change it. A rational energy strategy must be determined by scientific evaluation of fact and logical analysis of performance and economics–not by emotion, political considerations, and ‘feel good’ methodologies.”

– Jerry Graf (below)

Other than the damage to the economy from the waste itself, the real problem with mandating and subsidizing non-viable energy technology projects is that this distracts us and diverts resources from other efforts to improve our energy production strategy.…

“Power density (W/m²) is perhaps the most revealing variable in energetics…”[1]- Vaclav Smil

It may be a bit of an exaggeration to say that understanding power density may be all the average person requires to put our energy sources and needs into perspective, but there is some merit in this argument. Unfortunately, this view of energy matters remains little discussed, probably because it appears rather academic.

This post attempts to overcome this by further illustrating the concepts. It will also demonstrate how industrial-scale wind and solar PV electricity generation plants fail to meet this important, high-level standard of performance for electricity sources required by mankind, particularly in developed societies, but increasingly in developing and even undeveloped societies.

This is even without taking into account:

(1) The persistent erratic (short term – minutes) and unreliable (medium to long term – hours to days) nature of electricity production that wind and solar PV provide; (2) their high costs; and (3) many other considerations described here.