Sungevity Gets $70 Million

Last week, Sungevity announced a $70 million round of new equity financing. While bigger pots of money to support companies’ expansion in the retail solar market, the new pot of cash for the company comes shortly after it partnered with Sunrun to expand services. And this round of financing is also notable because of Sungevity’s ability […] Read more


Philadelphia Solar Love

If Philadelphia has its way, solar energy could be on its way to become as synonymous with the city as Rocky Balboa and the Liberty Bell. Recently, the city council unanimously passed a resolution aiming to install enough solar capacity to power 20,000 homes by the end of 2025 — an amount that will accelerate […] Read more


Apple, Facebook, and Google get Greenpeace Praise

Greenpeace, which has long been critical of the enormous energy used by leading tech companies, is now lauding Apple, Facebook and Google for their leadership. Working to power the internet with 100% renewable energy, signals a major shift in the industry over the past two years, Greenpeace says in Clicking Clean: How Companies are Creating the Green Internet. Imagine […] Read more


U.S. Energy Use Increased in 2013

Americans used more renewable, fossil and even nuclear energy in 2013, according to the most recent energy flow charts released by Lawrence Livermore National Laboratory. Each year, the Laboratory releases energy flow charts that illustrate the nation’s consumption and use of energy. Overall, Americans used 2.3 quadrillion thermal units more in 2013 than the previous year. The Laboratory also […] Read more


Solar on Every U.S School!

This morning the National Solar Schools Consortium launched at the National Science Teachers Association (NSTA) Conference in Boston. The goal of the newly formed organization is to put solar on roof of every school from kindergarten to high school. That would be almost 140,000 schools if you look at how many schools the National Center for Education […] Read more


Citigroup: The ‘Age of Renewables’ Has Begun

Investment banking giant Citigroup has hailed the start of the “age of renewables” in the United States, the world’s biggest electricity market, saying that solar and wind energy are getting competitive with natural gas peaking and baseload plants. In a major new analysis released last week, Citi says the big decision-makers within the U.S. power […] Read more


California Solar Net-Metering for Homeowners: PROTECTED

Last week the California Public Utilities Commission (CPUC) took action to give California homeowners with solar arrays and those who install solar under the current net-energy metering (NEM) program assurances that the net-metering contract they sign will be good for 20 years under state policy. The decision, in the largest residential solar market in the […] Read more


Commercial Roofing: Questions with Dr. Jim Hoff

Dr. Jim Hoff currently serves as vice president of research for the Center for Environmental Innovation in Roofing in Washington, D.C., and as president of TEGNOS Research Inc., a consulting organization dedicated to expanding understanding of the building envelope. He’s also the instructor of the upcoming “Commercial Roofing Boot Camp” — an advanced online design course that has […] Read more


Africa: Set for Solar Revolution

The future of renewable energy in Africa is looking brighter all the time. The African Renewable Energy Fund (AREF) has raised $100 million for the development of grid-connected renewable energy projects in sub-Saharan Africa. Though many countries in sub-Saharan Africa remain drastically underdeveloped, which has caused the region to have the world’s lowest electricity access rate at 24 percent, […] Read more


Power Food by Sony

Joining the others in a sudden burst of innovation on Apr. 1, Sony introduced its latest invention in fuel technology, Sony Power Foods. Here is what Sony says about it: Now, the same fuel we’ve used to power ourselves for thousands of years can be used to power personal electronics. At Sony, our challenge was […] Read more


In Focus: FIA Formula E

After several years of discussion followed by significant technical development, the FIA Formula E Championship is finally ready to launch its inaugural season. Beijing is slated to host the initial event on the 2014/2015 calendar, by offering a city circuit configuration integrated within the boundaries of Beijing’s Olympic Village. Each event’s format will largely mirror […] Read more


Artificial Photosynthesis: Coming Soon

Scientists at the U.S. Department of Energy’s Argonne National Laboratory in collaboration with researchers from Arizona State University have found a way to imitate Photosystem II, the first protein complex in the long chain of reactions that use energy from the sun to create usable fuel. The result was reported in the journal Nature Chemistry (see footnote). […] Read more


Solar: Leading the Nation in Job Creation

The last couple of weeks have seen a number of great stories published about the benefits that solar is bringing to the economy and the planet. Not only have we seen state rankings for solar potentialfrom the National Renewable Energy Laboratory, a look back at the incredible solar boom of 2013, and a roadmap for reaching 100 percent […] Read more


Multilayered Waveguide Array: Solar’s Big Opportunity?

A new study by researchers at the University at Buffalo explores the use of a nanoscale microchip component called a “multilayered waveguide taper array” that improves the chip’s ability to trap and absorb light. Unlike current chips, the waveguide tapers (the thimble-shaped structures pictured above) slow and ultimately absorb each frequency of light at different […] Read more