Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More.
Educators and activists often comment on how difficult it is to talk about the issue of global warming without overwhelming one’s audience. So it was good to see Saul Griffith’s presentation at ETech mounted online for all of us to share. Griffith is a MacArthur fellowship winner who works as an energy educator and a [...]
If solar panels cost $1/watt, you can sell them (installation included) for $2/watt. Coal (installation included) costs $2.10/watt. To date, solar is still reaching to compete with coal, but the margins are closing. To (over)simplify how this works, you need to ignore issues like subsidies, qualitative costs, or kinks in the supply chain, and boil [...]
(Picture courtesy of PedalPub) Bikes in Cleantechnica!? Of course! Isn’t the goal to consume less non-renewable energy? Just because we’re doing so with the good old bike doesn’t mean it is not worthy of the technology title–especially with the advances in bike technology highlighted below. And although I’ve long agreed with this quote from author [...]
In light of our new Live Debate on nuclear energy running in our Green Options Discussion Forum, I see an opportunity to provide some context with another gem from the e2 energy series on PBS. e2 energy is a series of well-produced and thought-provoking pieces that go beyond the issues raised in the longer programs. [...]
One of the most common arguments against large-scale use of renewable energy is that it cannot produce a steady, reliable stream of energy, day and night. Ausra Inc. does not agree. They believe that solar thermal technology can supply over 90% of grid power, while reducing carbon emissions. “The U.S. could nearly eliminate our dependence [...]
The March 25th, 2008 issue of Renewable Energy Access counters the incorrect stereotype that wind is unreliable. Some facts: Over 4.5 million U.S. homes get their power from wind energy. According to energy reliability analysts, wind power flows into electric system operations reliably and economically. Many countries and U.S. states use wind as a significant [...]
Tidal power isn’t really talked about a lot here in the U.S., but it’s always exciting when a fresh renewable energy technology enters the equation. To wit: Britain just launched a first-of-its-kind contraption that will generate tide power for the Isles. This past weekend, a 122-foot, 1.2 megawatt upside-down-windmill-looking-thing headed out to sea from the [...]
What if computers didn’t get hot and batteries never lost their battery life? What if you could help power your car with the heat of its engine? Conducting electricity from one point to another, and then putting it to good use, is one of the linchpins of our modern lives. The materials that make transporting [...]
