8/17/2007

The Detroit utility holding company DTE Energy announced Thursday it has signed a long-term agreement with Michigan-based Heritage Sustainable Energy LLC to provide wind power for DTE's GreenCurrents renewable energy program.
 
The 10-year agreement will enable Heritage to build a new 6,500-acre wind farm in Wexford County's Richland Township, near Cadillac.

Introduced earlier this year, GreenCurrents offers DTE Energy's 2.2 million electric customers the option of choosing environmentally friendly renewable energy for their homes and businesses.

You step up to the register, the cashier asks if you've found everything ok and then the inevitable question is asked: "Will it be paper or plastic?" What decision did you make? Was it an informed choice? Was it the best ecological choice? Well, to answer that, we need to start at the beginning and review each option and its impact on the environment.

August 13, 2007

With the public's demand for green energy growing and favorable tax policies in place at least through the end of next year, wind energy's upward draft shows no sign of abating. In fact, in its first-quarter 2007 market report, the American Wind Energy Association projected another 3,000 megawatts of capacity being built this year and thousands of megawatts remain on the drawing board in the ensuing years.

August 10, 2007

The whole idea stinks. But generating heat and power from livestock manure is appealing. The compost is placed into an oxygen-free machine that separates the methane gas and then uses it to create electricity to power farms or transport over the grid.

The technology is an important component in the fight against climate change. Normally, farms store the waste in a lagoon and then later use it as a fertilizer. But, that natural decomposition creates methane, which is actually 21 times more potent than carbon dioxide when it comes to affecting the Earth's temperature. The ability to capture that gas and then reuse it in an environmentally friendly manner not only lessens greenhouse gas output; it also reduces the need for other types of fuel sources.

July 11, 2007  By Salvatore Salamone, Guest Editor

New demand for distributed power generation and clean energy are causing a renaissance in fuel cells. Government agencies and other groups are funding a variety of efforts to make fuel cells more efficient and to bring the cost per kilowatt to produce electricity down to levels that are on a par with other generation technologies.

And while not directly related to the electric utility industry, there are many government and automotive industry efforts under way to improve fuel cells for use in hybrid and clean-fuel cars. Any developments or breakthroughs from these projects potentially could be applied to fuel cells used by power companies.