Green Options » tidal turbines

New Nickel-Lithium Battery Has “Ultrahigh” Energy Storage Capacity

Nick Chambers — Tue, 06 Oct 2009 19:38:23 +0000

Researchers have found a way to create a battery out of Nickel and Lithium that can store more than 3.5 times the energy of lithium-ion batteries and are much safer to boot.

Lithium-ion batteries are great and all—having heralded in a new age of portable electronics and allowed for the possibility of mass-market electric cars—but they have a few major drawbacks. For instance, they have a propensity to catch fire and explode and, although they have a much better energy storage capacity than say lead-acid or nickel metal hydride (NiMH) batteries, they still weigh too much to pack more than a couple hundred miles of range into a passenger car.

Read more of this story »

Reinvention: Tour of GM’s New Electric Vehicle Battery Testing Facility [+pictures]

Clayton B. Cornell — Wed, 17 Jun 2009 16:31:34 +0000

Editor’s Note: This is a 4-part series covering my trip to Michigan to test-drive the Chevy Volt. See post 1. LiveBlogging from the opening of GM’s New Battery Lab, and 2. Chevy Volt Test Drive: How GM’s Electric Car Works. Disclaimer: GM flew me out for this event. This post is in no way affiliated with the GM ads that appear at the margins.

The real reason we were in Warren, MI wasn’t to test-drive the Volt, but to be on hand for the grand opening of GM’s new battery testing facility. The $25 million Global Battery Systems lab is now the largest battery testing facility in the United States, and is four times larger than the company’s old lab.

GM made a strategic decision to keep battery development in-house, because it will likely be a key competitive advantage in the race to commercialize electric vehicles. The lab already employs 1,000 engineers who work on advanced battery systems like the one found the the Chevy Volt.

Read more of this story »

Toyota: Reports That the Plug-in Prius Gets 65 MPG are Wrong

Nick Chambers — Sun, 08 Feb 2009 19:04:26 +0000

Last week, news broke that the upcoming plug-in Prius was returning 65 miles per gallon in tests. That would represent a 15 mpg gain over the recently announced 3rd generation non-plug-in Prius. Now, in a post on Toyota’s Open Road Blog, Irv Miller, Vice President Environmental and Public Affairs, says that no such claims were made.

Read more of this story »

World’s First Commercial-Scale Tidal Power Turbine Begins Feeding Electricity to the Grid

Timothy B. Hurst — Thu, 17 Jul 2008 10:50:32 +0000

SeaGen more than four times the size of next largest tidal turbine

The world’s first commercial-scale tidal turbine, developed by British tidal energy company, Marine Current Turbines, has delivered electricity onto the grid for the first time. In principle, SeaGen works much like an “underwater windmill” with the rotors driven by the power of the tidal currents rather than the wind.

Conservative estimates suggest there is at least five gigawatts of power in tidal flows in Britain, but there could be as much as 15GW.

The tidal current turbine, known as SeaGen, has briefly generated 150kW of power onto the grid as part of its commissioning work, ahead of it achieving full capacity a few weeks from now. SeaGen’s power is being intentionally constrained to 300kW during the commissioning phase, but once fully operational, it will generate 1.2MW of clean, renewable energy to the equivalent of 1000 homes.

Read more of this story »

Who Might Win McCain’s Battery Competition? Part I: Firefly

Nick Chambers — Tue, 01 Jul 2008 15:28:34 +0000

Editor’s note: This post is a lead-in story to the Gas 2.0 interview with Mil Ovan, Senior Vice President and Co-founder of Firefly Energy.

Last week John McCain, the presumptive presidential nominee for the 2008 Republican ticket, suggested that a $300 million government-sponsored competition would be a good way to spur development of next generation battery technologies.

His comments generated debate in the blogosphere and around the United States. Meanwhile, Barack Obama, the presumptive presidential nominee for the Democratic ticket, called McCain’s proposal a gimmick suggesting that $300 million was not enough.

Regardless of my feelings about the proposed competition or the candidates themselves, it got me thinking about just who might win it if it were to become a reality. All that thinking led to this post, and, hopefully, to several others that will look at the most promising next generation battery technologies on the horizon.

This week I’ll start with Firefly Energy.

Read more of this story »

Interview With Mil Ovan, SVP and Co-founder of Firefly Energy

Nick Chambers — Tue, 01 Jul 2008 15:28:04 +0000

Editor’s note: This interview is a companion piece to Part I of the Gas 2.0 series about who might win John McCain’s proposed $300 million dollar battery competition if it were to become reality.

Last week John McCain, the presumptive presidential nominee for the 2008 Republican ticket, generated debate by suggesting that a $300 million government- sponsored competition would be a good way to spur development of next generation battery technologies.

His comments got me thinking about just who might win such a competition it if it were to become reality.

Firefly Energy is one of the companies that made it to my short list. Founded in 2003, they have been working on reinvigorating old-hat lead-acid battery technology in such a way that it would become brand new and cutting edge once again.

Firefly’s innovation is that they’ve taken the heavy lead plates you’d find in a classic lead-acid battery and replaced them with a light carbon-graphite microcell foam that’s been impregnated with lead.

I recently had a chance chat with Mil Ovan, Senior Vice President and Co-founder of Firefly, about the company, their take on McCain’s competition, Firefly’s battery technology, environmental worries about lead, the Oasis battery, electric vehicles and the company’s plans for the future.