Energy Exchange

Plugging Away – San Diego’s Plan to “Charge” Toward a Cleaner Grid

By Larissa Koehler / Published: March 17, 2015

We love electric vehicles (EVs) in California and we want that love to spread. Why? It isn’t because of the cool factor – though, believe me, EVs like the Tesla are undoubtedly cool. Instead, it’s because these cars can offer significant benefits to the environment, electric grid, and economy.

California policymakers feel the love: in March 2012, Governor Brown signed an Executive Order that put an ambitious – and important – goal in place to provide the infrastructure for up to 1 million zero-emission vehicles (ZEVs), which includes fuel cell powered vehicles along with plug-in hybrid and battery EVs, by 2020 and put 1.5 million ZEVs on the road by 2025.

Here are some of the potential benefits of electric vehicles:

Reduce harmful pollution. Because EVs don’t produce any emissions from the tailpipe when they are drawing on energy from their battery – unlike traditional gasoline-powered vehicles – they can greatly reduce the amount of harmful pollution from which California suffers. Targeting tailpipe emissions, the largest contributor to dangerous emissions, will help the state meet its greenhouse gas reduction targets and reduce harmful pollutants that are causing elevated levels of smog.
Integrate more renewable energy. By charging at times when renewable energy is abundant (i.e., during the day to take advantage of solar and late at night to soak up wind power), EVs can enable the grid to handle more clean energy resources while still maintaining reliability.
Avoid increasing use of fossil fuel resources. Because solar power becomes unavailable when the sun goes down, the grid sees a steep increase in the use of fossil fuel-powered energy before sunrise and after sunset. If EVs charge during the day and then draw upon that stored energy when renewable energy is unavailable it will reduce the need for fossil-fueled generators to provide energy during these times of the day.
Avoid costs to utilities and residents. Capitalizing on the ability of EVs to integrate more renewables onto the grid can offset the need for additional, expensive transmission and distribution infrastructure as energy needs increase over time. In addition, EVs present an attractive financial proposition – by reducing or eliminating the amount that drivers spend at the gas pump, those who purchase an EV can recover the upfront cost of the car in a matter of years.

Posted in California, Clean Energy, Electric Vehicles / Tagged SDG&E | Read 5 Responses

Here Comes the Sun: How California is Bringing More Renewables to the Grid

By Larissa Koehler / Published: March 10, 2015

Ask most people what the Beatles and California have in common and they might very well be at a loss. However, the answer is pretty simple: they are both unabashed trendsetters in the face of resistance – the former in their musical style and the latter in its clean energy policies.

Not content with setting a Renewable Portfolio Standard that ends at 2020, Governor Jerry Brown and state legislators are pushing for the Golden State to get 50 percent of its energy from renewable resources by 2030.

To meet this ambitious target, California must build a system that is largely based on renewable electricity, like wind and solar. This is not an easy task. The primary reason? Sunshine and wind are only available at certain times of the day and can be variable during those times.

Traditionally, managers of the electricity grid have relied upon dirty “peaker” power plants – usually fossil fuel-fired and only needed a couple of days a year – to balance the grid during periods of variability or when electricity demand exceeds supply. But, in a world where 50 percent of our energy comes from renewable sources as a means to achieving a clean energy economy, we can’t rely on these dirty peaker plants to balance the variability of wind and solar.

Luckily, technology is available today that can help fill the gap of these peaker plants – and the California Public Utilities Commission (CPUC) is starting to embrace it. Read More »

Posted in Air Quality, California, Cap and Trade, Clean Energy, Climate, Demand Response, Electric Vehicles, Electricity Pricing, Energy Efficiency, Energy-Water Nexus, Grid Modernization, Renewable Energy / Tagged Energy Storage | Read 1 Response

2014: A Positive Sign of What’s to come for Clean Energy

By Cheryl Roberto / Published: January 8, 2015

The New Year is a time for reflection, beginning with a look back on the previous 12 months and all that they brought. A quick scan of the U.S. climate and energy news in 2014 will tell you it was a very big year.

The Environmental Protection Agency (EPA) proposed the first-ever limits on carbon pollution from power plants, the U.S. and China struck a historic climate deal, and Tesla broke ground in Nevada on the largest advanced automotive-battery factory in the world – a move that’s expected to slash the cost of lithium ion batteries by a third. At the same time that these important national and international advancements were grabbing headlines, Environmental Defense Fund (EDF) and our partners were working together to incrementally transform the U.S. electricity system by rewriting outdated regulations, spurring energy services markets, and modernizing our century-old electric grid.

The U.S. is on the verge of a revolution in the way we make, move, and use energy. And, having spent years working on governmental and regulatory matters related to our power system and lessening its impact on the environment, I can honestly say there has never been a more exciting time to be in this field. Here are a few of the moments that were near and dear to our hearts over the past year, developments I see as a sure signal 2015 will be another epic year for clean energy. Read More »

Posted in Clean Energy, Demand Response, Energy Efficiency, Energy Financing, Grid Modernization, Illinois, Investor Confidence Project, New Jersey, New York, Renewable Energy, Texas, Utility Business Models / Tagged Energy Storage | Read 3 Responses

Clean Energy Conferences Roundup: January 2015

By EDF Blogs / Published: January 5, 2015

Each month, the Energy Exchange rounds up a list of top clean energy conferences around the country. Our list includes conferences at which experts from the EDF Clean Energy Program will be speaking, plus additional events that we think our readers may benefit from marking on their calendars.

Top clean energy conferences featuring EDF experts in January:

Jan 26-27: Net Metering 2.0 and Utility Solar Rates, Anaheim, CA
Speaker: Jamie Fine, Senior Economist

Net metering was a simple and appropriate rate mechanism when the solar industry was in its infancy and consumer-installed PV panels were relatively uncommon. But as policies and incentives enticed increasing numbers of home owners and businesses to adopt solar, the growing penetration of these resources onto the grid has resulted in some uncomfortable balancing acts among utilities, customers, regulators, solar providers, and other stakeholders important to the process. The objective of this conference is to explore rate structures that facilitate meeting solar development goals for consumer adoption, while striking an optimum balance among all solar development stakeholders, including utilities, and their business models.

Posted in Clean Energy, Conference Roundup / Comments are closed

Bringing Storage Beyond the Closet and into the Socket

By Larissa Koehler / Published: December 9, 2014

EDF’s Innovators Series profiles companies and people across California with bold solutions to reduce carbon pollution and help the state meet the goals of AB 32. Each addition to the series will profile a different solution, focused on the development of new technologies and ideas.

When someone says the word “storage,” the first thing that usually comes to mind are boxes stuffed into the back of the closet, or that deserted facility with orange doors near the freeway off-ramp.

These days, energy innovators across California are giving storage a whole new meaning – and helping to revolutionize the system that brings electricity to homeowners and businesses alike. One of the entities leading this revolution is Pacific Gas & Electric Company (PG&E), a utility in the midst of piloting new battery energy storage technology to determine how effectively it can provide a variety of grid services, including the integration of intermittent renewable generation from solar and wind.

Increasing amounts of distributed energy generation in both urban and rural areas – coupled with increasing customer demand associated with things like population growth and consumer electronics – makes energy storage an important tool to keep generation and energy use in balance. This balancing function is an important asset for integrating renewables into the grid, as storage can soak up solar and wind energy when they are abundant and discharge that energy when it is otherwise unavailable. Through this charge / discharge cycle, energy storage could lower the need for traditional fossil fuel sources and reduce resultant air pollution. Read More »

Posted in California, Clean Energy / Tagged Energy Storage | Comments are closed

Momma Said ‘Time-of-Use’ Electricity Pricing

By Jorge Madrid / Published: September 16, 2014

Map of polluting power plants in Los Angeles County. Many are located in or near the region’s most vulnerable communities that are already over-burdened by air pollution.

My mom is a pro at shopping for good deals. She taught me the importance of timing my purchases during the off-peak season to get the most value for my dollar.

Time-of-Use (TOU) electricity pricing reminds me of the lessons my mom taught me, and it can help empower families to take control of their energy use, while saving money AND improving air quality.

Like the name implies, TOU pricing allows customers to choose when to power-up large appliances (think laundry, dishwasher, A/C) in order to avoid using high-demand, “peak” energy – which is more polluting and expensive. It is a voluntary program with a proven track record.

Peak energy demand typically occurs late in the afternoon when everyone is coming home from school and work, running the A/C, charging phones, cooking, doing laundry, or streaming Netflix on a T.V. During this high-demand time, energy prices spike and electric utilities flip on expensive and dirty fossil fuel “peaking” power plants to meet energy demand (because nobody wants to lose power and heaven-forbid the Internet!). Read More »

Posted in Electricity Pricing / Read 2 Responses