Editor note: In Part I and Part II, Jon Boone set the stage for a final analysis of the Sierra Club’s current position in support of wind power. This conclusion to the series provides a discussion on the science, realities, and the unintended consequences that may be the result of current environmental movement thinking, which it typifies.

 Birkenstock Tales

MBA types who wouldn’t know a bat from a bowtie now run the national Sierra Club. Their interest is in gaining membership and revenue. In a critique aptly entitled, Torquemada in Birkenstocks, Jeff St. Clair said this about Carl Pope: “[He] has never had much of a reputation as an environmental activist. He’s a wheeler-dealer, who keeps the Club’s policies in lockstep with its big funders and political patrons. Where Dave Brower scaled mountains, nearly all of Pope’s climbing has been up organizational ladders.”…

Last week in the Huffington Post, climatologist Dr. James Hansen made an impassioned plea to President Obama to ditch cap-and-trade and instead advocate a plan to tax carbon-based fuels with 100% of the revenues returned to households. This was not the first time. Hansen made the same pitch back in December 2008 in a letter to President-elect Obama. President Obama did not heed Hansen’s advice, keeping his wagon hitched to cap-and-trade, the policy darling of Big Green, U.S. CAP, and congressional leaders. But with cap-and-trade bogged down on Capitol Hill, Hansen argues, his plan gives Obama “a second chance on the predominant moral issue of this century.”

Hansen made the case for “tax-and-dividend” in testimony before the House Ways & Means Committee on February 25, 2009. I commented on Hansen’s testimony a week later on MasterResource.…

When it comes to power, density is the key. Energy density. The reason that solar power, wind power, and ethanol are so expensive is that they are derived from very diffuse energy sources. It takes a lot of energy collectors such as solar cells, wind turbines, or corn stalks covering many square miles of land to produce the same amount of power that traditional coal, natural gas, or nuclear plants can on just a few acres.

Each of these alternative energy sources is based on mature technology. Agriculture and fermentation have their roots in prehistory, windmills date back at least to 65 B.C., the photovoltaic effect was discovered in 1839. Yet nowhere in the world are these technologies serving as primary energy sources without significant government subsidies. While incremental improvements can be expected, what is needed for them to become viable is an order of magnitude increase in productivity.…

All interconnected transmission and distribution (T&D) grids have one thing in common. Their operators must continually dispatch generators to keep the network’s supply and demand in balance at all times and to maintain its voltage and frequency within very tight tolerances.

The “simultaneity problem” is not shared by oil or natural gas or coal. It is a tough reality for electricity that Thomas Edison and countless inventors since him have tried to solve via affordable battery storage. 

So where are we today in terms of cost per kWh to use batteries to store power and, in the case of intermittent technologies, firm power? For utility scale battery systems, expect to pay between $1,000/kW and $4,000/kW, according to the Electricity Storage Association. The DOE’s optimistic assessment estimates those costs will drop to around $500/kW by 2012.…