Hoffert

Hoffert - A Renewable Energy Rationale Presented at Energy...

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A Renewable Energy Rationale Presented at Prospects for Solar Energy in the 21 st Century October 16-17, 2004 James A. Baker III Institute for Public Policy Houston, Texas by Marty Hoffert Dept. of Physics, New York University New York, NY 10003 marty.hoffert@nyu.edu
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Global warming over the past millennium Very rapidly we have entered uncharted territory -– what some call the anthropocene climate regime. Over the 20 th century, human population quadrupled and energy consumption increased sixteenfold. Near the end of the last century, we crossed a critical threshold, and global warming from the fossil fuel greenhouse became a major, and increasingly dominant, factor in climate change. Global mean surface temperature is higher today than it’s been for at least a millennium .
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Mass-produced widely distributed PV arrays and wind turbines may eventually generate 10-30 TW emission-free
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POLICY IMPLICATION FOR RENEWABLE ENERGY: Some industry critics claim we will never power civilization with renewable energy. Fact: Wind & solar are fastest-growing primary power sources, but are unlikely to grow from present ~ 1% of supply to 10% by 2025 and >30% by 2050 without major incentives, R & D and demonstration of enabling technologies. There are no known show- stoppers Energy Demand 1980-2020 (BAU) Mbarrels/day oil equiv. Mbarrels/day oil equiv . Mbarrels/day oil equiv.
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: The double-finned beast on a microwave tower in the middle right of the collage at left is the Lebost Wind Turbine (LWT). The top is an image from an interview Jane Pauley of the NBC Today show did with me live from the Barney Building roof in the summer of ‘79 shortly after the LWT went up. The winning architectural design for the WTC reconstruction, the Freedom Tower by Daniel Liebeskin and David Child, is projected to contain wind turbines inside its open cable- tensioned upper structure, sufficient to generate 20% of the building’s electricity -- the first wind turbine in lower Manhattan since we built the NYU LWT during the “Energy Crisis” of the 1970’s.
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Hoffert - A Renewable Energy Rationale Presented at Energy...

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