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November 6, 2012

I wrote this essay to offer some essential information about our world and the future of our species, adding my voice to the many cries of alarm over the environmental crisis (lately reaching criticality). [More…]

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solar thermal

Review: The Great Transition—Shifting from Fossil Fuels to Solar and Wind Energy

The Great Transition by Lester R. Brown

W. W. Norton & Company (April 20, 2015)

Review by Ross McCluney 22 OCT 2015

This is a terrific contribution from an experienced writer on environmental issues.

It has been a long struggle to bring the costs of solar energy and other renewable sources down to a point where they can actually compete in the energy marketplace, even without major government incentives.

That’s the case for wind and solar, as Brown describes so well in this new book. Other renewable energy sources are also making great strides, as are efficient buildings and efficient transportation — not to mention research accomplishments on energy storage technologies, efficient long-distance electricity grid designs, and massive new investments in green energy.

The only deficiency is the lack of graphics to support the text. But never mind that. Web searches on wave energy, tidal energy, ocean current energy, solar electric, solar thermal, energy storage, geothermal, wind turbines, electric grids, and renewable energy economics can put these images plus relevant charts and graphs at your fingertips.

For example, when I started out as a solar scientist in 1976, the holy grail in the photovoltaic world was getting the price of PV down to an amazingly low price of 50¢ per peak Watt (Wp) of electrical output. At that time the price was over $76/Wp. Take a look at this astounding bar chart of the price from 1976 to 2015.

It turns out that we passed the 50¢/Wp point in 2013 and now the price is an amazingly 30¢/Wp, thanks mainly to China’s recent burst in solar equipment manufacturing, aided along the way by the United States, Japan, and Germany. Continue reading