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Renewables

New Kind of "Tandem" Solar Cell Developed

March 28, 2015 by Energy @ MIT

Solar Cell Invention

Researchers have developed a new kind of solar cell that combines two different layers of sunlight-absorbing material in order to harvest a broader range of the sun’s energy. The development could lead to photovoltaic cells that are more efficient than those currently used in solar-power installations.[read more]

ComEd Backs a Bill to Impose Demand Charges on Residential Customers

March 27, 2015 by Katherine Tweed

The Illinois General Assembly introduced legislation recently that would allow ComEd to invest more than $400 million in projects like community solar, along with grid-edge assets such as microgrids and public electric-vehicle charging infrastructure.[read more]

Emerging Technologies Can Pave the Way for Time-Variant Electricity Pricing

March 27, 2015 by EDF Energy Exchange

Variable Electricity Pricing and Tech

The amount of energy we use at any given time is constantly changing. Lights are switched on and off by time of day, appliances operate based on the season. In order to meet our dynamic energy demands, our system has to have the infrastructure and resources in place to respond when needed.[read more]

Energy Quote of the Day: 'Before You Get Mugged by Reality, Take Out an Insurance Policy'

March 27, 2015 by Edward Dodge

Climate Change and Future Risk

Former Secretary of State George P. Shultz is urging climate change doubters to at least take out an insurance policy when it comes to carbon emissions and climate change. Shultz argues for sustained support for energy research and development along with a carbon tax.[read more]

Springing Eternal: Seven Reasons for Hope on Climate Change

March 26, 2015 by Peter Dykstra
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Hope on Climate Change

Let’s look at what’s been happening in climate change action lately, because after years of bitter disappointment, things look different now. Because after years and years of cynicism, I see elements of a sea change in urgency and attitude on climate.[read more]

Carbon-as-a-Service Businesses?

March 25, 2015 by Noah Deich

Cleantech Business Development

The Cleantech Group’s annual San Francisco Forum wrapped up earlier this week. The event’s theme was “Cleantech-as-a-service,” and featured parallel tracks named “Cloud” and “Connect.” Overall, this focus on technology-enabled business model innovation shows how mature the cleantech field has become.[read more]

Energy Efficiency 2.0: A New Definition Underway in California

March 25, 2015 by Christine Hertzog

What does energy efficiency mean to you? In states like California that employ aggressive energy efficiency policies and standards from widget to building envelope, it’s been a successful strategy to reduce per capita energy consumption.[read more]

The Emergence and Importance of President Obama's Climate Policy

March 25, 2015 by Steven Cohen

President Obama recently signed an executive order directing federal agencies over the next decade to cut their emissions by an average of 40 percent compared with their levels when he won office in 2008, and to increase their use of electricity from renewable sources by 30 percent.[read more]

How Should We Design Government Policies to Stimulate Innovation?

March 25, 2015 by Lucas Davis

Policy Supporting Innovation

 

Innovation needs to take center stage not only in Washington DC, but also here in California, which produces only 1% of the world’s greenhouse gas emissions. So the success or failure of California’s climate policies hinges on stimulating innovation that can be exported to the rest of the world.[read more]

Obama Signs Order to Cut Government GHG Emissions and Boost Renewable Energy

March 24, 2015 by Jared Anderson

Obama Administration and Emissions Reduction

Recently President Obama singed an executive order regarding government energy targets, toured a solar panel installation on the Department of Energy’s roof, and gave brief remarks before kicking off a roundtable with large US companies that do over $1 billion in business with the federal government.[read more]

Study: Solar PV in the Built Environment Could Power California Nearly 5 Times Over

March 24, 2015 by Stephen Lacey
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In 2007, when the cost of a rooftop solar system hovered around $8 per watt, engineer and solar advocate Bill Powers proposed an ambitious plan: replace a proposed transmission line for Southern California with 2,000 megawatts of PV systems across San Diego.[read more]

China's Power System: The Green and the Black

March 24, 2015 by Armond Cohen
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China Energy Needs and Sources

If you follow energy discussions, you will often hear one of two visions of China’s energy system emphatically described by various pundits and advocates. At first blush, the two visions seem fundamentally in conflict. Only one must be true! How can China be both “green” and “black” at the same time?[read more]

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Building European Investor Confidence for Energy Efficiency Investment

March 24, 2015 by Clare Taylor

Hopes are high for the success of the Investor Confidence Project Europe, a new EU funded project designed to increase private investment in energy efficiency. The aim: to accelerate development of a global efficiency market by standardizing how efficiency projects are developed and savings is calculated.[read more]

Hong Kong Once Again Leading the Way in the Fight to Control Shipping Emissions

March 24, 2015 by Barbara Finamore

Hong Kong and Shipping Emissions

Hong Kong has just taken another giant step towards controlling marine emissions, the major source of its domestic air pollution. The Hong Kong Legislative Council has just approved a new rule mandating that Ocean-Going Vessels (OGVs) switch to clean fuel while at berth.[read more]

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The 100% Renewable Energy Nuclear Option, Part 1

March 23, 2015 by David Hess
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Renewables and Future Energy Options

 

It is time for the world to get serious about renewables, by formally recognizing that nuclear energy is one in all ways that matter. Usually the term renewables is taken to mean wind and solar, but this makes the idea of a life and death contest with nuclear all the more ridiculous.[read more]