Energy Exchange

So You Want an EV? We’re Helping to Figure Out How to Make it Happen

By Larissa Koehler / Published: May 8, 2015

You may have noticed: we’re big fans of electric vehicles (EVs) here at Environmental Defense Fund (EDF). Standard transportation fuels are one of the biggest sources of harmful greenhouse gas emissions, so vehicle electrification is a crucial part of our clean energy future. But getting more EVs on the road is about more than just giving customers incentives to buy these types of vehicles. We also need to deal with where and how we charge EVs.

From April 27^th to May 4^th, EDF was engaged in evidentiary hearings at the California Public Utilities Commission that dealt with San Diego Gas & Electric’s (SDG&E) new electric vehicle pilot. Representatives from EDF, the Utility Consumers’ Advocacy Network, the Office of Ratepayer Advocates, SDG&E, Pacific Gas & Electric, ChargePoint, KnGrid, the Natural Resources Defense Council, and the Green Power Institute, were all putting their best foot forward at the hearings. While there were sadly no Perry Mason moments (aside from an unsilenced cell phone playing the theme song in the middle of the hearings), I did try my hand at challenging witnesses on some key points through cross-examination for the first time. More importantly, the six-day-long process allowed Jamie Fine to shine as an expert witness and raise a number of matters of high priority to EDF. Read More »

Posted in California, Clean Energy, Electric Vehicles, Electricity Pricing, State / Comments are closed

Hitting Those Clean Energy Notes

By Larissa Koehler / Published: March 24, 2015

San Onofre Nuclear Generating Stations (SONGS) Photo source: Flickr/Jason Hickey

Editor’s note: This post was updated April 9, 2015.

When the door to one power plant closes, a window to more clean energy solutions opens.

It may seem logical that once a power plant closes, another one needs to be built to replace it – after all, we need to make up for its potential energy generation with more natural gas or nuclear-powered energy, right? San Diego Gas & Electric (SDG&E) is certainly trying to convince Californians this is true. Trouble is, EDF and other environmental groups, along with the California Public Utilities Commission (CPUC), aren’t buying it. And you shouldn’t either.

This story begins in 2013, when the San Onofre Nuclear Generating Stations (SONGS) permanently closed, shutting down a nuclear power plant with a capacity of 2,200 megawatts (MW) and sparking a debate about how to replace this lost power source. When first determining how to proceed in the wake of the SONGS closure, the CPUC decided SDG&E could buy between 500 to 800 megawatts (MW) of new energy resources by 2022. Further, at least 200 MW of this power had to – and all of it could – be met with preferred resources like energy efficiency, renewable energy, energy storage, and demand response (an energy conservation tool that pays people to save energy when the electric grid is stressed). Read More »

Posted in California, Clean Energy, Electricity Pricing, Energy Efficiency / Read 2 Responses

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

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

Methane leaks need to be a thing of the past, and Sacramento is taking a step in the right direction with SB 1371

By Larissa Koehler / Published: June 24, 2014

California has more than 100,000 miles of often-aging natural gas transmission and distribution infrastructure. Methane, the primary component of natural gas, when vented or allowed to leak into the air is 84 times more potent than carbon dioxide at contributing to climate change over a 20-year timespan. In addition, according to data from the Intergovernmental Panel on Climate Change, more than one-third of today’s human-caused global warming comes from short-lived climate pollutants that include methane. Taken together, this data shows how critically important it is to minimize natural gas leaks quickly.

Senate Bill (SB) 1371, authored by California State Senator Mark Leno, aims to cut methane pollution from California’s gas transmission and distribution system by requiring the Public Utilities Commission to get more aggressive in requiring utilities to find and fix natural gas leaks. Yesterday, SB 1371 passed a critical vote in the State Assembly and is well on its way toward final passage later this summer.

What does SB 1371 do? Put simply, SB 1371 changes the way utilities respond to natural gas leaks. Read More »

Posted in California, Clean Energy, Climate, General, Methane, State / Comments are closed