Energy Exchange

Nest’s Promising Results for Reducing Peak Electricity Demand

By Jamie Fine / Published: May 15, 2014

Back in January when Google announced it would spend $3.2 billion to purchase Nest, EDF knew this was a company to watch. The results of three new reports, released today, confirm that controllable thermostats like the Nest Learning Thermostat are both customer-friendly and useful for energy system planners. Moreover, the reports signal that smart devices, such as those Nest manufactures, have potential for generating marked savings for utility customers.

The reports analyze 2012-2013 energy use data gathered from four major utilities across the U.S. that offer Nest energy services programs: Austin Energy, Reliant Energy, Green Mountain Energy, and Southern California Edison.

The first report evaluates the results of Rush Hour Rewards, a demand response service that changes the temperature of the homes of Nest users during energy “rush hours”, or times when demand on the grid is highest. The second examines Seasonal Savings, a program that runs for three weeks and slowly modifies the temperature according to the customer’s behavior (which this smart thermostat is able to ‘learn’ via its built-in motion sensor and understanding of its owner’s temperature preferences). Both operate during times of heavy usage, namely winter and summer. The third report analyzes home energy data of Nest customers more broadly, comparing energy use before and after the installation of a Nest Thermostat. Read More »

Posted in Clean Energy, Demand Response, Energy Efficiency, Grid Modernization, Utility Business Models / Tagged Nest | Read 1 Response

Germany is Revolutionizing how we Use Energy…and the U.S. could Learn a Thing or Two

By Peter Sopher / Published: May 14, 2014

“Green Power, not nuclear energy.” Germany will fully transition off nuclear by 2022.

As the academic breeding ground of Einstein, Freud, and many other internationally-known scholars, it should come as no surprise that Germany is at the forefront of modernizing an industry as complex as energy. Over the last two decades, Germany has been revamping its electricity sector with the ambitious goal of powering its economy almost entirely on renewable energy by 2050. And last Sunday, the country broke a new record by acquiring nearly 75 percent of its total energy demand from renewable sources (mostly wind and solar). Even the European Union’s recent announcement that it will begin divesting in renewable energy by 2017 hasn’t shaken Germany’s ambition to forge ahead in its quest to phase out fossil fuels.

Energiewende (the German term for ‘energy transition’) is by far the most aggressive clean energy effort among the G20 and could be as beneficial for other countries as it is for Germany. The German Institute for International and Security Affairs argues, “If the [German] energy transition succeeds, it will serve as an international model… The allure of the German energy transition represents an important foreign policy resource, of which full use should be made.”

At the moment, Energiewende is the closest thing the world has to a renewables-integration pilot on a national scale. If successful, this blueprint will expedite the broad scale integration of technologies that will be necessary to wean the world off fossil fuels and combat climate change. Read More »

Posted in Clean Energy, Climate, Grid Modernization, Renewable Energy, Utility Business Models / Tagged Germany | Comments are closed

The Spread of Green Banking Paves the Way for Clean Energy Investments

By Brad Copithorne / Published: May 13, 2014

Source: 401kcalculator.org

While no two “green banks” are exactly the same, the idea behind these government-created financial institutions is to dramatically expand the clean energy market. Rather than providing grants to stimulate clean energy investment, green banks use attractive interest rates and other incentives to leverage money from the private sector.

In addition to offering attractive interest rates, loan-loss reserves, and other market supports, these innovative banks draw on deep expertise from the public and private sectors to help demonstrate the profitability of clean energy investments.

By the end of the year, green banks should be up and running in Connecticut, New York, and Hawaii. We hope that California will follow soon. These states form a vanguard that has recognized the value of using a small amount of public capital to generate significant private investment in clean energy. Read More »

Posted in Clean Energy, Energy Financing, Renewable Energy / Tagged Green Bank | Comments are closed

U.S. Climate Assessment Report Warns of Energy Challenges – All of which We’re Ready to Meet

By Cheryl Roberto / Published: May 13, 2014

Photo by DAVID ILIFF. License: CC-BY-SA 3.0

There’s been plenty of attention paid to the recent release of the Third National Climate Assessment report – and appropriately so. The lead paragraph of New York Times reporter Justin Gillis’ story put it rather bluntly:

“The effects of human-induced climate change are being felt in every corner of the United States, scientists reported Tuesday, with water growing scarcer in dry regions, torrential rains increasing in wet regions, heat waves becoming more common and more severe, wildfires growing worse, and forests dying under assault from heat-loving insects.”

Even for those of us that have been urging U.S. action on climate, the assessment was pretty stark and the message was clear: the time to act came a long time ago. We need to get busy catching up.

But the optimist in me was excited about a chapter in the report that hasn’t yet gotten much attention. Chapter 4 focuses on Energy Supply and Use, and though the energy challenges caused by climate change are formidable, the U.S. is very well positioned to meet them if our leaders will get behind some practical solutions. There are five key takeaways in the Energy chapter: Read More »

Posted in Air Quality, Clean Energy, Climate, Demand Response, Energy Efficiency, Grid Modernization, Renewable Energy / Comments are closed

Desalination can Help Solve our Water Woes, but not without Clean Energy

By Kate Zerrenner / Published: May 12, 2014

Source: Prodes Project

As drought continues to grip Texas and many other Western states, one of the solutions often discussed (and pursued) to overcome water scarcity is desalination. Simply put, desalination, or desal as it is most commonly called, is a process that removes salt and other minerals from salty (brackish) or seawater to produce freshwater for drinking and agriculture. This technology seems like a no-brainer option for addressing the state’s water woes, but the problem is that desalination uses a lot of electricity and the majority of Texas’ electricity comes from coal and gas power plants, which require copious amounts of water to generate that electricity. It doesn’t make much sense to use water to make water, especially when there’s an alternative in Texas’ abundant renewable energy resources.

Texas is the national leader in wind energy and has the greatest solar energy potential in the U.S., yet neither of these resources are being widely deployed for desal plants despite recent studies pointing to vast opportunities. Not only do these energy resources produce negligible carbon emissions, but they also consume little to no water, unlike fossil-fueled power plants. Furthermore, if we look at where brackish water sources are located compared to where the wind and solar energy potential is in this state, the overlap is pretty clear. This synergy should not be ignored. Read More »

Posted in Clean Energy, Energy Efficiency, Energy-Water Nexus, Renewable Energy, Texas / Read 2 Responses

President Obama Goes to Walmart

By EDF Blogs / Published: May 9, 2014

By: Elizabeth Sturcken, Managing Director, Corporate Partnerships Program

I never really expected to be sitting in a Walmart in Mountain View, CA listening to President Obama speak about environmental commitments, but I am excited for the momentum he is generating, particularly in the private sector, to support the EPA announcement on carbon limits on June 2nd.

So why Walmart?

The President is making a point. Walmart gets about 25 percent of its global electricity from renewables. In the United States over all, only about 2 percent of power comes from solar sources. In 2005, Walmart set a goal to be supplied 100 percent by renewable energy. To date Walmart has 335 renewable energy projects underway or in development across their global portfolio. Having the president hold Walmart up as a role model is a great way to drive other industry leaders to follow suit. Read More »

Posted in Clean Energy, Energy Efficiency, Renewable Energy / Tagged President Obama | Comments are closed