Annual investment in renewable energy is predicted to triple between now and 2030, according to a report by Bloomberg New Energy Finance.

In an analysis of several factors shaping the global energy future — including economic conditions, market demands, and the evolution of technologies (more…)

I received an interesting press release about something called Nautical Torque technology, a process for generating energy from the rise and fall of ships and other large vessels with the tide. It was invented by the late Cahill Maloney; his son, Galen, is now carrying the torch. (more…)

One of the U.S.’s largest electric utilities has agreed to close three coal-fired power plants in the Midwest, the latest sign of how the U.S.’s electricity supply is shifting away from coal to natural gas and renewable energy.

American Electric Power (AEP) will shut down the three plants in Indiana, Ohio and Kentucky by 2015 — retiring a total of 2,011 megawatts of coal-burning (more…)

Coal is somewhat notorious for not being the cleanest of fuels. Similarly all combustion systems release a good deal of carbon dioxide. A new form of clean coal technology reached an important milestone recently, with the successful operation of a research-scale combustion system at Ohio State University. The technology is now ready for testing at a larger scale. (more…)

Here’s a video that shows where I spent my afternoon: on a tour of the (currently) 2 megawatt solar photovoltaics facility at Fort Hunter Liggett in Central California, now the largest solar array on a military base in the U.S. – and soon to be a microgrid. As I took a tour with some colleagues, work was underway for Phase Two, which will add two more MW, and enough battery (more…)

Rising water temperatures and a reduction in river flows have caused declining production at some thermoelectric power plants in the U.S. and Europe, a trend that will likely continue for decades to come as the planet warms, according to a new study.

Writing in the journal Nature Climate Change, (more…)

Germany has installed enough photovoltaics such that coal-fired power plants are beginning to become unprofitable. This is driven by a combination factors, e.g., that coal isn’t asked to provide power at the peak of the day, when both the sun and the price of electricity are at their zenith. Of course, most of us cheer when coal runs into trouble, but issues like this (more…)

Two recent stories illustrate how far wind power can go in terms of efficiency and mechanics.

First, let’s take a look at what Japanese researchers have come up with.

According to Mother Nature Network, scientists at Kyushu University in Japan have come up with an (more…)

If you ever get the chance to meet Irish-born entrepreneur, Philip Brennan, he’ll be quick to tell you, “Depending on who you believe in my family, I’m a fourth or fifth generation entrepreneur. I’ve worked for big corporations for many years and was tired of trying to turn the aircraft carrier in another direction. It is (more…)

Nautricity is a UK company that develops tidal energy technology. Its CoRMaT tidal turbine, a 500kw device in its largest form, will be installed and tested in the Thames River alongside a former Royal Navy sloop called the HQS Wellington (see Clean Technica article).

The CoRMaT turbine is the subject of at least one (more…)