Author Archives: Cheryl Roberto

Demand Response: People, not New Power Plants, are Driving the Clean Energy Future

Clean energy resources, like wind, solar, and energy efficiency, have certain key advantages over traditional, fossil fuel-based resources: they don’t require expensive, polluting fuels or large capital investment, consume little to no water, generate negligible carbon emissions, and are easily scalable. To take full advantage of low-carbon, renewable energy sources, we need a power grid with enough flexibility to harness clean energy when it is available and abundant. That’s where demand response, a people-driven solution, comes in.

On a hot summer day, for example, electricity use rapidly increases as people turn on air conditioners to avoid the heat of the late afternoon. A decade ago, the grid operator’s only option is to turn on another fossil fuel power plant to meet the increased need for electricity. But, at any given time, there are thousands of light switches left on, idle water heaters, cycling swimming pool pumps, and forgotten thermostats that people could temporarily turn off or down, if only they were offered the right incentive. If asked, people can adjust their power usage in exchange for a financial reward. We call this “demand response,” and it is increasingly helping to balance the flow of electricity with our energy needs at a given moment.

Demand response diverts money that would generally go to a fossil fuel power plant to homeowners and businesses instead. In this scenario, a utility or demand response provider sends a message for participants to reduce electricity use at key times in exchange for a credit or rebate on their utility bill, in addition to the cost savings they will earn through conservation. Of course, participants always have the option to opt-out with the tap of a button on their smart phone or thermostat. Read More »

Posted in Demand Response, Grid Modernization, Renewable Energy| Read 1 Response

An In-Depth Look at the Future of American Energy and How We Get There

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Imagine a world where homes not only run on clean electricity but also generate, store, and sell it. A world where power companies get paid for conserving energy, not just producing it. Where, when supplies are tight, the power grid gives customers the option of being paid to reduce and even shift their energy use to a different time of day, allowing us to use more renewable energy.

The U.S. is poised to spend around $2 trillion over the next two decades replacing our outdated electric infrastructure. We must make sure those investments are not spent on replacing old, dirty power plants with more of the same. If we’re truly going to unleash the clean energy future, we must invest in renewable energy and a smarter grid that can smooth out the demand for power and reduce harmful air pollution. Read More »

Posted in Clean Energy, Energy Efficiency, Energy Financing, Grid Modernization, On-bill repayment, Renewable Energy, Utility Business Models| Read 2 Responses

Changes to Electricity Systems Will Enhance U.S. Grid Reliability

Cheryl Roberto PhotoLast Thursday morning, with my heart quickly jumping, I entered the grandeur of the United States Senate hearing room for the Committee on Energy and Natural Resources’ Keeping the lights on — are we doing enough to ensure the reliability and security of the US electric grid? hearing as an invited witness. I was eager to share EDF’s vision of a cost-effective, clean energy system that enhances reliability − but I couldn’t help being a little awed by the moment. I had never testified on Capitol Hill before and the dignity of the setting and importance of the message I wanted to share weighed on me.

Here are the high points of my testimony (though you can read it in full here):

  • The nation’s electricity system stands at a transformative crossroads: The costs of distributed generation technologies like rooftop solar and battery storage are falling and energy productivity is rising. In our digital world, people have increased demands for power quality and reliability, but needs for power quantity are predicted to fall – mostly due to “gains in appliance efficiency and an increase in vehicle efficiency standards by 2025.” As a result, our system is transforming from a one-way, centralized power delivery network in which customers passively receive electricity to a two-way flow of both power and information in which customers both receive and produce electricity. The very model of centralized, utility-scale power generation is no longer sacrosanct. The electricity systems we built in the last century, and the regulations that govern them, are no longer adequate – neither to ensure reliability, or to accommodate the rapid changes in technology, consumer needs, environmental standards, and the changing marketplace. Read More »
Posted in Clean Energy, Grid Modernization, Utility Business Models, Washington, DC| Comments are closed
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