With all the talk about lithium ion batteries, and the unprecedented investment occurring in this area, it is easy to forget the most prevalent utility-scale energy storage technology, pumped hydro. Pumped hydro is the most mature and largest storage technology available. Worldwide, there are over 150 pumped hydro facilities with a total capacity of over 100 GW. In the United States, there are 38 pumped hydro facilities (more…)
Fighting a war on the ground in Afghanistan has to be one of the hardest things a young person can do.
Fortunately, the U.S. Department of Defense, or DOD, is on the ground with our troops offering help and support – albeit in some very unexpected ways.
According to Tony Bui, an engineer with (more…)
AT&T is bulking up its latest corporate sustainability plan.
A 296-kilowatt solar power system has officially been activated in San Diego, and it’s just the first of six company sites around California scheduled for solar installation. The goal is 2 megawatts of clean solar electricity. The Trade Street site in San (more…)
The use of renewable sources of energy in Europe continues to grow at a brisk pace and energy efficiency also is improving, significantly reducing reliance on coal and natural gas, according to a new report. In
The government of St. Lucia has signed an agreement with a U.S.-based company to develop a series of geothermal plants they say will produce more than 120 megawatts of electricity, with plans to export much of that energy capacity within five years. The Caribbean island nation, located on the volcanic arc of the Small Antilles and home to about 175,000 people, has granted (more…)
British designers are developing a new type of offshore wind turbine that rotates on its axis, mimicking the spiral of a sycamore seed, and that stretches nearly 900 feet (275 meters) from tip to tip.
The so-called Aerogenerator has two enormous arms that extend from the base of the structure in a V-formation, each (more…)
Whenever you suggest that renewables could one day supply a large proportion of our electricity, scores of people jump up to denounce it as a pipedream, a fantasy, a dangerous delusion. They insist that the energy resources don’t exist; that the technologies are inefficient; that they can’t be accommodated on the grid; that the variability of supply will cause constant blackouts.
I suspect that no amount of evidence will sway some of these people. There’s a large contingent which seems to hate renewables come what may. (more…)
The widespread adoption of energy efficient light bulbs, fans, refrigerators, air conditioners, and irrigation pumps can overcome India’s electricity shortage by 2013 and significantly reduce the country’s rapidly growing carbon dioxide emissions, according to a new report. The study by the Lawrence Berkeley National Laboratory said such simple energy efficiency measures could add $608 billion to India’s gross domestic product by 2020 because they would eliminate the chronic energy shortages that frequently force businesses and factories to reduce production. (more…)
Imagine a world where you can buy electricity from your choice of vendor (not the utility) at prices that can be negotiated with the vendor. Kind of like shopping at eBay or Amazon. Want to buy a week’s worth (1,000 kWh) of power from SebaSolar at 9 ¢/kWh? Just click here. How about switching to WindyWelly for the weekend (300 kWh) at 8.5 ¢/kWh? Click! Wait, NeoGeo just announced it has a ‘fire sale’ at 7 ¢/kWh for next Tuesday through Thursday. Click!
Well, imagine no more. This electricity world exists today. To see this new architecture of energy at work I went to Wellington, New Zealand.
Powershop is a unit of Meridian Energy, the largest electricity generator and retailer in New Zealand. “The vision of Powershop is to be like eBay for electricity,” says CEO Ari Sargent. “Any electricity generator in New Zealand, including Meridian’s competitors, can offer their own brands of electricity at different prices and different times.”