Sierra Club

Nikola's Memorable May, and The Donald

May Birthdays

On May 1, 1888, Nikola Tesla was issued seven patents that literally made our world. Together with an eighth patent issued two weeks later, Tesla laid the foundation for an alternating current-based electric grid.

Turning Energy Inside Out

Amory Lovins on negawatts, renewables, and neoclassical markets.

Fortnightly speaks with Amory Lovins about the evolving role of conservation, competition, and distributed resources in the energy industry.

Cape Wind: For Real?

For more than a decade the prospect of a wind farm in Nantucket Sound has sparked imaginations and spurred debate. At times it looked like a pipe dream, but the project is now fully permitted and construction is expected to begin in the next year. Jim Gordon, president of Energy Management Inc. -- the company developing the Cape Wind project -- spoke with Green Utility about the benefits of offshore wind power, and the challenges of developing the nation’s first offshore wind farm.

GU: How did your company get involved with wind energy?

Solar Screen Test

Making room on the local grid for small-scale PV.

For the first time, perhaps, the electric utility industry may need to keep track not only of peak load, but also of minimum load, as the Federal Energy Regulatory Commission reviews a proposal by the Solar Energy Industries Association to employ a new definition of minimum load under a new, relaxed threshold test that would govern eligibility for fast-tracking of applications by generation developers to interconnect new, small-scale solar energy projects to the local utility distribution grid.

Lighting Up the World

Why electricity is good—and more is better.

A century of electrification shows clearly that more electricity—and cheaper electricity—enhances public health, raises living standards and also improves the environment. Conversely, higher prices harm businesses and families, with a disproportionate impact on low-income households. Public welfare goals are best served by public policies that make electricity more accessible and affordable to the masses—not less.

Seismic Omen

Fukushima shockwaves hit America’s nuclear renaissance.

In the aftermath of the March 11 earthquake and tsunami, questions are arising about the safety and survivability of reactors located in geologically active areas. Major changes might be required, and as a result the U.S. nuclear industry might face an existential challenge on the order of the Three Mile Island accident.

Renewable Reality Check

How solar PV could redraw the map for green energy and grid investment.

When Pacific Gas & Electric broke the news six weeks ago that it had signed a deal with Solaren Corp. to buy 200 MW of solar energy from satellites launched into geosynchronous orbit, the idea seemed almost laughable. Solaren’s plan is to catch unobstructed sunlight falling on arrays of photovoltaic solar panels deployed in the crystalline void of outer space, and then to convert the generated electricity into radio-frequency energy for transmission to Solaren’s ground-based receiving station outside Fresno. Welcome to the new renewable reality.

Green Imagineering

Perception trumps reality at Florida ‘solar city.’

Once upon a time, a real estate developer dreamed of building a planned community. The developer, Syd Kitson, envisioned a “city of tomorrow™” in southwestern Florida, designed for efficiency, convenience and harmony with nature. Instead of driving cars everywhere, the 45,000 residents of Kitson’s Babcock Ranch would ride bikes to school, and walk to the cinema. They’d take a tram to visit friends in another hamlet, on the other side of a lush wildlife preserve.

Paying for the Green Grid

Subsidies might not be the best solution for interconnecting renewables.

Supporters of renewable energy are seeking to socialize the cost of a new interstate highway system for transporting green power. But utilities and transmission owners will build or finance new transmission systems to serve economic demands. Policy makers shouldn’t pre-ordain the direction of industry progress.