Energy & Technology

Plug-In Electric Vehicles Could Help the Grid: Prospects with Frequency Regulation

This is the third post in a three-part series that explores potential impacts of electric vehicles on the electrical grid. Part 1 and Part 2.

Previous posts in this series discussed how the demand for electricity from plug-in electric vehicles (PEVs) would affect the grid as well as a potential problem related to clustering. This final post describes an opportunity for these vehicles to help increase the stability of the grid and hold down utility rates for consumers.  As a reminder, a PEV is either an all-electric vehicle (EV) or a plug-in hybrid electric vehicle (PHEV).

Plug-In Electric Vehicles Could Help the Grid: Following the Crowd

This is the second post in a three-part series that explores some potential impacts of electric vehicles on the electrical grid. Part 1 and Part 3.

In our previous post in this series, we provided evidence that the existing electrical grid has enough spare capacity to accommodate plenty of plug-in electric vehicles (PEVs), if the right incentives are put in place. In this post, we will discuss a technical problem that has its roots in social behavior.

The transition from traditional powered vehicles to electric vehicles will not be without its hiccups. While the aggregate impact of PEVs on the grid is likely moderate, one concern is clustering, which can be thought of as the realization of the famous comic strip Keeping up with the Joneses. If people buy what their neighbors have, this could lead to a clustering of PEVs in certain neighborhoods which might place excessive demand on local areas of the grid.

Plug-In Electric Vehicles Could Help the Grid: The Capacity Question

This is the first post in a three-part series that explores some potential impacts of electric vehicles on the electrical grid. Part 2 and Part 3.

One of the main concerns over the electrification of vehicles is their impact on the electrical grid. Will they lead to power outages due to the increased demand in certain areas? Will a marked increase in electricity demand raise prices for consumers who don’t own a plug-in hybrid electric vehicle (PHEV) or an all-electric vehicle (EV)? In a series of blog posts, we’ll take a look at a claim from some utilities that vehicle electrification could actually help improve the stability of the grid while keeping costs low through a process called frequency regulation.

In this post, we’ll try to answer the capacity question. In order to determine whether the grid has the capacity to handle the influx of Plug-in Electric Vehicles (PEVs or PHEVs/EVs), utilities must estimate at what time of day these vehicles will demand power from the grid and how many of them the grid can charge at a time without causing power disruptions.

Start Your Energy Diet

Earth Day – it’s the perfect day to start your energy diet. It’s great to hug a tree, (in fact, that’s how you measure the carbon it sequesters) but for most of us, it’s even better to wrap our arms around that tangle of charger cords and pull the plug.  Reducing your energy consumption is the very best way to honor Mother Earth – and save money – this year and every year.

Since I am perpetually on a diet, let me share some of the best strategies for getting started:

Business-NGO Group Calls on Obama for Greater Consumer Access to Energy Data

A group of nearly 50 companies and organizations, including the Center, sent President Obama a letter this month asking the Administration to lead the way to providing all consumers access to their energy information.  The April 5 letter calls for giving consumers access to this information via devices such as computers and phones; making it easier for them to monitor and manage their energy use.

With timely and actionable information on energy consumption, households and businesses can avoid inefficiencies that drive up consumer costs and greenhouse gas emissions.  Through its Make an Impact program, we also works to weave sustainability and energy efficiency into the fabric of its partners’ corporate culture. The program provides accessible information to employees and their communities on ways to reduce energy use, lower their carbon footprint, and save money. These savings can be significant: If every U.S. household saved 15% on its energy use by 2020, GHG savings would be equivalent to taking 35 million cars off the road and would   save consumers $46 billion on their energy bills each year. 

Regulating Petroleum

We recently released a report that describes the petroleum sector from production to consumption and examines options for including greenhouse gas (GHG) emissions from petroleum use under climate policy (e.g., GHG cap and trade). Currently, policymakers are considering multiple approaches for coverage of petroleum under comprehensive climate and energy legislation. In deciding how to address a sector of the economy or a particular fuel, policymakers must balance the goals of ensuring maximum coverage of emissions, minimizing administrative complexity and burden, avoiding creating perverse incentives or market distortions, and promoting emission reductions.

While the details of the Kerry-Graham-Lieberman climate and energy proposal in the Senate are yet to be released, press reports indicate that the trio is likely to adopt a new approach to covering transportation fuels—the so-called “linked fee.” Unlike other proposals in the House or Senate, the Kerry-Graham-Lieberman approach would reportedly levy a “carbon fee” on transportation fuels with the fee amount linked to the carbon price from a GHG cap-and-trade program covering at least electric utilities. The forthcoming details of how the “carbon fee” is linked to the cap-and-trade market will determine whether such an approach can lead to significant emissions reductions from transportation and whether such an approach can yield the economy-wide emissions reductions needed to protect the climate.

Our new report includes information relevant to the linked-fee approach. For example, the report calculates that about 80 percent of combustion emissions from petroleum use are attributable to transportation fuels that are already subject to federal fuel excise taxes. Untaxed transportation fuels and large and small stationary combustion sources account for the remainder of emissions from petroleum use. This means that a linked fee could be implemented at least in part by covering the same entities that currently pay the fuel tax. 

Another Senate proposal, the Cantwell-Collins Carbon Limits and Energy for America's Renewal (CLEAR) Act, creates an economy-wide cap-and-trade program—in this case just covering CO2 emissions from fossil fuel use. The CLEAR Act adopts an entirely “upstream” point of regulation that would make “first sellers” (i.e., coal mine and natural gas and oil well owners) responsible for surrendering cap-and-trade allowances for end-use emissions from the fossil fuels they sell. As the new Pew Center report explains, there are about a half million oil wells in the United States. Of the nearly 14,000 domestic well operators tracked by the U.S. Energy Information Administration (EIA), the 10 largest (e.g., BP, Chevron) account for about half of total production, and the 670 largest account for about 90 percent of production.

The House-passed comprehensive climate and energy bill (H.R. 2454, the Waxman-Markey American Clean Energy and Security Act of 2009) also included an economy-wide GHG cap-and-trade program. Waxman-Markey, however, would require petroleum refiners and importers to surrender cap-and-trade allowances equal to the GHG emissions from the final end use of their products (e.g., tailpipe emissions from vehicles). This point of regulation for petroleum would achieve complete coverage of combustion emissions and regulate a small number of entities and facilities (about 150 refiners with 67 different owners and a larger number of importers and points of entry). Of note, Waxman-Markey adopted different points of regulation for different emission sources--including large sources (e.g., coal and natural gas power plants and industrial sources) and local natural gas distribution companies (residential, commercial, and small industrial natural gas users).

With different proposals in play, our new report can inform policymakers and others considering options for reducing GHG emissions from petroleum use and help advance approaches that balance the goals of emissions coverage, administrative ease, and cost-effective and significant emission reductions.

Steve Caldwell is a Technology and Policy Fellow

It’s No Joke: Fighting Climate Change Can Save Money and Reduce Oil Dependency

The federal government took the opportunity on April Fool’s Day to show the world the United States is not joking about its commitment to reducing greenhouse gas (GHG) emissions. The U.S. EPA and U.S. DOT have jointly produced a standard that will reduce CO2 emissions by 1 billion metric tons over the lifetime of vehicles covered and on average save consumers around $3,000 in fuel costs over the life of each vehicle purchased in 2016. The new rule requires the corporate average fuel economy (CAFE) for new passenger cars and light-duty trucks to be 35.5 miles per gallon by 2016. It will also limit carbon dioxide emitted from those vehicles to 250 grams per mile on average. The vehicle emissions rule shows how one policy can achieve multiple goals – reduce our dependence on foreign oil and reduce our nation’s GHG emissions.

The implementation of this regulation is a nod to complementary policies that combat climate change. As an organization that has long pushed for a comprehensive market-based mechanism, we are acutely aware of the importance of pricing carbon. However, putting a modest price on carbon, by itself, would not significantly reduce greenhouse gas emissions from this sector. For example, EPA’s analysis of the House-passed climate and energy bill found that the bill would cause the price of a gallon of gasoline to only rise by $0.13 in 2015, $0.25 in 2030, and $0.69 in 2050. The rule finalized Thursday addresses this problem directly by setting an increasingly more stringent standard for reducing GHG emissions but allowing vehicle manufacturers the flexibility to find the most cost-effective technologies to achieve those standards.

In evaluating regulations like these, one important factor to consider is coverage. The new vehicle rule covers over 60 percent of greenhouse gas emissions from the transportation sector. Other sources of emissions in transportation such as aviation, ships, and heavy-duty trucks will require additional actions (see our paper on aviation and marine transportation). EPA has announced its intent to propose GHG standards for heavy duty trucks in June of this year.

Another important factor to consider when evaluating regulations is cost. In order to meet the new standards, vehicle manufacturers will have to make fuel efficiency (as opposed to increased engine horsepower) one of their primary areas of focus for research and development. In doing so, future vehicles will cost more than they would without this rule. However, fuel savings over time will more than make up for that additional upfront cost.

The program is estimated to conserve 1.8 billion barrels of oil over the lifetime of vehicles covered under the rule. Reducing our overall oil consumption can reduce our reliance on foreign oil, which can translate into cost savings. A study by the U.S. EPA and the Oak Ridge National Laboratory estimated that a reduction of U.S. imported oil results in a total energy security benefit of $12.38 per barrel of oil, in part by reducing defense spending. Co-benefits like these are an important part of determining the worthiness of a policy. In the case of the new vehicle rule, the U.S. has taken a big step towards reducing its oil dependency and increasing its energy security.

Nick Nigro is a Solutions Fellow

Finding the Sweet Spot for Offshore Drilling

The Obama Administration made some important announcements about offshore drilling last week. And in the near and medium term, we believe increasing U.S. oil production is compatible with successful efforts to significantly reduce U.S. greenhouse gas (GHG) emissions.

Offshore drilling has been much talked about lately. Expanding offshore drilling in the federal outer continental shelf (OCS) areas and increasing oil and gas revenue sharing for nearby coastal states is part of the package of climate and energy policies being negotiated by Senators Kerry, Graham, and Lieberman.

Coverage of Greenhouse Gas Emissions from Petroleum Use under Climate Policy

April 2010

Prepared for the Pew Center on Global Climate Change

By:
Joel Bluestein
Jessica Rackley
ICF International

Download entire white paper (pdf)

The petroleum sector, which includes the production, import, processing, transportation, and distribution of crude oil and refined products such as gasoline, heating oil, diesel, propane, and jet fuel, is a significant source of U.S. greenhouse gas (GHG) emissions. Recent GHG cap-and-trade proposals have covered petroleum-related emissions by placing the point of regulation at the petroleum refinery or point of import of refined products.

Consumption of most finished petroleum products is already subject to a fuel tax. One alternative to regulating GHG emissions from petroleum at the refiners and importers is to regulate the same entities currently responsible for paying taxes on petroleum products and to apply other measures for regulating emissions from fuels not already subject to a tax. Another option for the point of regulation for this sector is upstream at the producer and importer level.

This paper provides an overview of the petroleum sector, identifying the key entities and associated facilities in the petroleum supply chain. There is also information on GHG emissions from the petroleum sector, a summary of which emission sources are currently subject to a fuel tax and which are not, and an evaluation of the implications of adopting an alternative point of regulation for GHG emissions from petroleum.

 

Click here to learn more about coverage of the natural gas sector in climate policy.

Jessica Rackley
Joel Bluestein
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From Shop Floor to Top Floor

From factory floors to corporate boardrooms, energy efficiency is top of mind for a growing number of businesses and their employees. Leading companies are pioneering new energy efficiency strategies that result in greater productivity, robust financial savings, and a lower carbon footprint. Today, we released a major study that examines key practices of a diverse collection of corporations at the vanguard of innovative energy efficiency solutions.

The report, From Shop Floor to Top Floor: Best Business Practices in Energy Efficiency, features insights from detailed research and analysis collected over nearly two years. The study represents the centerpiece of our Corporate Energy Efficiency Conference next week in Chicago.

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