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Cleantech

Vineeth Vijayaraghavan is the founder and editor of a site focused on cleantech in India, Panchabuta, and here’s what he’s been watching, reading, and writing about this week. Read More »

The state of cleantech venture capital, part 4: Parting thoughts

When it comes to cleantech investing, we’re in the early innings of a long ball game. The last in a 4-part series from Venrock’s Matthew Nordan. Read More »

 
 

The state of cleantech venture capital, part 3: The companies

Half of successful VC-backed cleantech start-ups stumble along the way. Entrepreneurs who raise big financing rounds at sky-high valuations can end up shooting themselves in the foot. Read More »

The big question for SolarCity when it didn’t secure a federal loan guarantee for an ambitious project a few months back was this: could it carry on with the plan? The answer is yes. SolarCity will get a $350 million loan from Bank of America . Read More »

How practical is a solar-powered car?

If you like the sun, and you like cars, then I’m guessing you’d love to have a solar-powered car, right? This trick works well for chocolate and peanut butter, but not so well for garlic bread and strawberries. So how compatible are cars with solar energy? Read More »

Morgan Solar, a startup whose technology uses optics to boost solar cells’ power output, said Tuesday it’s lined up $9.8 million to commercialize is technology. Read More »

When people think about cleantech, they typically think about solar panels or converting biomass into fuel. But the momentum right now in cleantech is as much about connectivity and how it can drive energy efficiency as it is about advancing sources of renewable energy. Read More »

Solaria raises $30M to push concentrating solar PV

Concentrating solar photovoltaics use optics to concentrate sunlight onto solar cells to boost energy production. While the tech is still in an early stage, some startups are looking to ramp up, like Fremont, Calif.-based Solaria, which has raised another $30 million. Read More »

U.S. solar rush now underway

With roughly a month to go before a key U.S. solar incentive is set to expire, a familiar phenomenon emerges once again: a rush to install projects. Manufacturers expect to see a big demand, though not necessarily big profits from the boom. Read More »

Thank you Google for a green victory

Despite that Google is ending its efforts to reduce the cost of clean power below coal, we’ve actually made it there. And clean power entrepreneur Jigar Shah says to Google: Thank you for pioneering this, and it’s time to declare it a victory! Read More »

Google's heliostat 2m x 3m, made of glass

After a couple of years under development, Google has shut down its project to design its own solar mirrors for a centralized solar thermal farm. Now it’s the job of researchers and solar execs to see if there’s anything to use from Google’s solar research. Read More »

China, finally, emerging as big market for solar demand

Suntech, the largest solar manufacturer in China if not the world in terms of production capacity, saw 22 percent of its sales in the third quarter of this year from China. Read More »

More Must Reads

Solar makers continue to struggle in 2011 with weak third quarter earnings, as the price of solar panels has dropped by 40 percent and important European markets have cut subsidies. Solar companies Suntech, JA Solar, LDK Solar and Canadian Solar all issued disappointing earnings. Read More »

As you sit down to your sustainably raised turkey dinner this year, it’s a good time to think about the things that have gone well for greentech in 2011. Yes, there have been clouds for the industry, but there have been quite a few milestones, too. Read More »

Vineeth Vijayaraghavan is the founder and editor of a site focused on cleantech in India, Panchabuta, and here’s what he’s been watching, reading, and writing about this week: Read More »

If we adopt solar and wind as major components of our energy infrastructure, we have to solve the energy storage problem in a big way. Here, we will take a peek at pumped hydro and evaluate what it can do for us. Read More »

Twenty-one cleantech startups from across the U.S. competed for a grand prize of $250,000 in investment and services at this year’s Cleantech Open Business Competition. And the winners are . . . Read More »

The article this weekend on the front page of The New York Times, “A Gold Rush of Subsidies in the Search for Clean Energy,” clearly underscores why the U.S. should phase-out all permanent and long-term subsidies for energy. Read More »

There will soon be enough solar projects globally to drive economies of scale to reach our Pearl Harbor moment in solar. That moment won’t be the end, but will start the first war for control of the power sector in 100 years. Read More »

We need smart government but we have limited funds for incentives, so we have to focus on our core strengths. For us that is innovation and deployment, particularly for solar. Read More »

Paring solar with data centers may not be a novel idea, but you will have a hard time finding companies that rely solely on solar electricity to power their servers. But what if the use of solar could help data center owners save energy? Read More »

Bankrupt solar panel maker Solyndra held a two-day auction for part of its assets last week in an attempt to recoup some of its losses, and reportedly drew thousands of people looking for both bargains and gear with Solyndra logos. Here’s 10 things that were bought. Read More »

Solar manufacturers have been on supercharged expansion mode over the past five years in order to cut costs and solar prices. But to continue that march at this point is just unwise. First Solar is now putting off bringing online a solar panel factory in Vietnam. Read More »

Facebook plans to build a solar system on the rooftop of its headquarters in Menlo Park, Calif., from startup Cogenra Solar that will generate both electricity and heat. Read More »

Power companies in India are funding both solar and wind as a way to add more power generation, as many areas in India are facing blackouts. Vineeth Vijayaraghavan watches cleantech in India closely, and here’s what he’s been reading this week. Read More »

Here’s a snapshot of what utilities really think about solar: it’s still too expensive but more consumers are starting to want it (but not necessary willing to pay for it). How can we get more utilities to invest in solar? Read More »

Will Apple embrace solar in any meaningful way? Seems like even Apple is realizing that it needs to hedge its brand against being labeled anti-environment. Now that Apple is the 800 pound gorilla of tech, managing negative publicity surrounding its sustainability practices will matter more. Read More »

Apple has been laying plans for a solar farm next to its massive data center in Maiden, N.C., according to The Charlotte Observer. The solar project will reportedly be built across the street from its $1 billion data center that will partly serve Apple’s iCloud. Read More »

Introducing crowd sourcing meets solar, with a kick. Startup Solar Mosaic has built a Kickstarter-style platform that is bringing together peer-to-peer lenders that want to make loans for solar projects in underserved communities, and plans to one day offer ways to make money from solar. Read More »

Are there still opportunities for tech innovation for solar cells, now that solar panels are rapidly becoming commoditized? California startup Silevo thinks it has a shot with a hybrid solar cell design and a plan to build its first factory in China. Read More »

As the failure of now-defunct solar panel maker Solyndra continues to make headlines, the Department of Energy’s Loan Chief Jonathan Silver plans to step down. Silver will become a Distinguished Visiting Fellow at the think tank Third Way. Read More »

It’s been over a month since the Solyndra news came out, but it’s still dominating. Because it just won’t go away, here’s my top five list of projects that the DOE also backed with loan guarantees and that are showing some early signs of success. Read More »

U.S-listed Chinese public companies are facing growing scrutiny for their accounting practices, and that investigation has extended to cleantech businesses as well. The latest example comes from A-Power Energy Generation Systems, a Chinese wind turbine maker. Read More »

Solar thermal company Stirling Energy Systems has filed for bankruptcy, according to Renewable Energy World. Stirling Energy Systems developed solar concentrators based on stirling engines, which use the sun’s heat to produce electricity, and planned to build projects to sell the power to utilities. Read More »

Google is investing millions of dollars into its second fund that will go toward installing solar panels on rooftops. On Tuesday Rick Needham, Google’s Director of Green Business Operations, announced that Google will invest $75 million into a solar fund for startup Clean Power Finance Read More »

Is the clean power industry not doing enough to win political support in the nation’s capital? While Solyndra has gotten flack for its significant lobbying efforts, the reality is that the industry should do more, not less. Read More »

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 »

The future of cleantech may depend more on the work of our military than climate change talks. The Pew Charitable Trusts released a report on Wednesday that showed the U.S. Defense Department’s cleantech investment ballooned 300 percent between 2006 and 2009 to reach $1.2 billion. Read More »

While DOE Loan Chief Jonathan Silver will testify before the House Energy Committee, Solyndra’s execs have decided to skip tomorrow’s hearing, and say they’ll testify the week of September 19th. We’ve interviewed Silver many times, particularly on Solyndra, including via this video in April 2011: Read More »

The Googlization of solar is here, and software, big data, wireless networks and IT will be a fundamental part of the future of modern energy infrastructure. Read More »

As expected, beleaguered solar startup Solyndra has officially filed for bankruptcy. The company’s rise and fall has turned into the clean power controversy of the summer and increasingly ugly details continue to emerge. Read More »

Looking at the internal rates of returns (IRR), which basically considers the capital investment needed and determines how profitable an investment in a project will be, the top solar markets of tomorrow, according to Lux Research, will be: New Jersey, Portugal, Australia, Italy, and India. Read More »

If Apple launched one of its gadgets with embedded solar cells, it could revolutionize the market for solar. Read More »

In light of solar startup Solyndra’s announcement this week that the company plans to file for bankruptcy, we decided to turn to our readers to hear about what you think are the most important impacts and lessons learned. We got some very interesting feedback. Read More »

Clean Power Finance, a solar software and financing startup, has raised $19 million from investors, according to a filing. Investors listed on the company’s filing include Kleiner Perkins Caufield & Byers Partner Ben Kortlang, and Claremont Creek’s Nat Goldhaber. Read More »

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