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PVcell

Physics professor Tom Murphy fights solar PV snobbery with his explanation of why 15 percent efficiency rates for solar panels is actually quite remarkable and not the real barrier to clean power. Read more »

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earth2

Follow physics professor Tom Murphy on an exercise in galactic energy that points out the absurdity that results from the assumption that we can continue growing our consumption of energy forever. Read more »

EndUseBenchmarking

Ditch the hardware and embrace big data and analytics — that could be the key to monitoring and managing energy consumption of commercial buildings. On Thursday startup FirstFuel Software announced that it’s raised $2.4 million from Battery Ventures and Nth Power, to scale up. Read more »

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greenitlogo

Cleantech, meet mobile. The intersection between these two industries has grown over the past twelve months as companies increasingly look to use smartphones as a platform to enable their services, according to a new report from our GigaOM Pro Green IT analyst Adam Lesser. Read more »

lemmings

Sometimes tech trends end up disrupting huge industries, like when the idea of Skype and free web calls, collided with the phone companies. However, sometimes tech ideas have all the makings of these kind of disruptions but ultimately end up flaming out. Here’s why: Read more »

Coda sedan

Electric car startup Coda Automotive has raised close to $150 million in funding, the company announced late Monday. I think this is the same oversubscribe round that the company has been in the process of raising over the past year. Read more »

GevoCodexisstock

Next-gen biofuel and biochemical companies Genomatica and Mascoma have filed notices recently indicating that they plan to go public some time soon. But how are the other next-gen biofuel companies that have gone public in recent months now faring on the stock market? Mostly down. Read more »

JohnStewartSolyndra

John Stewart brings you the Solyndra story in the true fashion of The Daily Show, proclaiming, “That custom-tailored Obama scandal you ordered is finally here.” To us in Silicon Valley, it shows just how big this story has gotten. Read more »

Photo by Katie Fehrenbacher/Gigaom

Two and a half years ago we covered Canadian solar startup Sixtron Advanced Materials, which developed an anti-reflective coating system for solar cells. Fast forward to 2011, and Sixtron’s website is gone, its phones are discontinued and the company auctioned its assets off to pay creditors. Read more »

opowerterawatt

Earlier this year we reported that energy software startup Opower was considering adding a home energy device to its portfolio. A half year later here’s Opower’s first foray into hardware: the company announced it has partnered with building automation giant Honeywell to sell a connected thermostat. Read more »

Cleanweb Hackathon

We’re exclusively bringing you live video of the demos from the first Cleanweb Hackathon! The “Cleanweb” is the trend of using information technology — software, the web, social media, mobile — to address resource constraints around energy, food and water. Read more »

Joe Biden & Harry Reid at the Clean Energy Summit

While Senator Harry Reid indicated that President Obama would likely discuss clean energy jobs in his jobs speech, Obama’s speech contained only the very briefest mentions of anything green related. Is the President cooling on talk of clean energy jobs in the wake of Solyndra’s scandal? Read more »

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