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Ambassador Resource Package

The purpose of this package is to equip you, an ambassador of SCE and the SONGS (San Onofre Nuclear Generating Station) with the upmost accurate information in order to conďŹ dently present to external audiences of truths about SONGS.


This package includes: A letter to you, the ambassador A Roadshow powerpoint presentation Talking points 5 Key Points About SONGS Myths vs Facts

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


Attention SCE Ambassadors:

We need your help to inform and educate the public about the situation at the San Onofre Nuclear Generating Station (SONGS) and the importance of nuclear energy. For the past 44 years, SCE and the management at SONGS have been committed to provide safe, reliable and affordable energy to nearly 4.9 million customers in Southern California with virtually no green house gas emissions. In early 2012, San Onofre went offline - Unit 2 for a planned outage that started Jan. 9 and Unit 3 was safely taken offline Jan. 31 after station operators detected a leak in one of the almost 20,000 steam generator tubes. Currently, SCE engineers and leading third party experts are evaluating safe repair and operation plans, with the same goal in mind - to ensure the plans meet the high safety standards required by SCE and the Nuclear Regulatory Commission (NRC). At Southern California Edison, the safe operation of the plant is our No. 1 priority and with that comes a responsibility that management takes very seriously. That is why SCE pledged not to restart either unit until we and the Commission are assured it is safe to do so. Though we are currently working on a plan to restart Unit 2 we will not do so until safety is guaranteed. Southern California Edison has a commitment to keep our customers, local communities and the broader public informed on the progress and plans for the San Onofre plant. We are not in the business of speculation or myth. We rely on facts and science — providing safe, reliable and affordable electricity to our customers.

How Can You Help? Much of the opposition to nuclear power, and SONGS specifically, is based on inaccurate information and misconceptions. You are being called upon to help raise awareness of the benefits of nuclear energy and the important role that the San Onofre Nuclear Generating Station plays in the stability of the California energy grid and our clean energy future. Included in this packet is information to bring you up to speed on the situation at the plant, including suggested talking points and materials. It is important to share this information about SONGS as it provides essential energy for a clean future. Sincerely Megan Jordan Vice President Corporate Communications at Southern California Edison

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


SONGS Talking Points The role of nuclear energy in California While safety guides the process at San Onofre, real facts about nuclear energy can inform the ongoing debate about California’s energy future. • Nuclear energy produces about 20 percent of California’s electricity. Across the U.S., nuclear power produces enough energy to power one of every five homes and businesses. • Nuclear energy also plays an important role in stabilizing this state’s electric grid, a critical aspect for importing power from remotely located renewable sources. • Nuclear plants are second only to hydroelectric power plants as the lowest-cost producer of baseload electricity, providing power any time of the day and in varying weather conditions. And while coal can power a 100-watt light bulb for about four days and natural gas about six days, a nuclear reactor’s uranium can power a light bulb for 140 years. • Currently, California gets about half of its electricity from natural gas. But the current natural gas prices won’t last for the next 40 to 60 years, about the operating period of a new nuclear power plant. It makes sense to have fuel and technology diversity for electric generation while striving for the optimal mix of environmental protection and consumer cost.

Nuclear energy for a clean future in California • Nuclear power is the largest source of electricity that does not emit greenhouse gases and its facilities are the most reliable on the electric grid (boasting an industry leading capacity factor just shy of 90 percent). It supplies 37 percent of California’s emission free power. • In the coming decade, California will be challenged to simultaneously grow its economy, meet rising electricity demand and reduce greenhouse gas emissions. • To meet this challenge, the state must establish a comprehensive and sustainable energy policy that supports the development of diverse, technology-based, low-car bon solutions. • Nuclear energy plays an important role in keeping the air clean, the lights on, and maintaining the reliability of our electricity grid. •

Nuclear power should continue to be a part of the discussion on and planning for California’s energy future.

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


The current situation at SONGS • Extensive inspections and testing showed wear in the steam generator tubing in both units, including unexpected “tube-to-tube” wear. •

Engineers later determined that the unexpected wear was associated with excessive vibration of the tubes in certain areas of the steam generators.

The unexpected tube-to-tube wear was far less extensive in Unit 2 than in Unit 3.

• Both units are currently safely offline.

Unit 2 was taken out of service Jan. 9 for a planned outage.

• Unit 3 was safely taken offline Jan. 31 after station operators detected a leak in a steam generator tube. • The Nuclear Regulatory Commission (NRC) determined that computer modeling used during the design phase by the manufacturer, Mitsubishi Heavy Industries, underpredicted the vibration-causing environment that would occur in the steam generators. • In March, the NRC issued a Confirmatory Action Letter outlining the actions SCE must take before restarting each unit.

Safety plans in place at SONGS • Currently, a team of internal and external steam generator experts is evaluating repair and operations plans to ensure they meet the high safety standards required. There are no deadlines for submitting SCE’s response to the Nuclear Regulatory Commission or for restarting either unit. •

We are currently working on a plan to restart Unit 2, and we have no timeline on the process. Also, the commission must approve that plan before restart of Unit 2.

Because Unit 3 had much more tube-to-tube wear than Unit 2, it is not clear at this time whether Unit 3 will be able to restart without extensive additional repairs. The reality is that the Unit 3 reactor will not be operating for some time.

SCE plans to defuel Unit 3, which is the standard practice during any extended outage and is the best way to continue testing and evaluating.

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


SONGS will reopen when safety is guaranteed Safety is the number one priority and there is no timeline on safety. SCE will not restart the units until the utility and the commission is satisfied it is safe to do so. •

California-based utilities adhere to some of the strictest local and state regulatory require ments in the United States. They operate under multiple regulatory schemes and a utility code written to create a balance between business realities — which in cludes out ages and necessary repairs — and strong ratepayer protections.

Through a state regulated, business and regulatory framework, SCE has successfully estab lished itself as an energy industry leader across the country and its San Onofre nuclear plant, like most California businesses, also provides support to neighboring communities in a variety of ways.

For the past 44 years, the plant has been providing safe, reliable and affordable electricity to Southern California residents, until Jan. 31.

Extra safety measures have been put into place Since the aftermath of the Fukushima Daiichi accident, the U.S. nuclear industry has been reconfirming and enhancing operation safety and adding another layer of protection against extreme natural events. •

Because of the state’s seismic activity, California’s reactors already were designed with added engineering and safety measures. And now California’s nuclear facilities are looking even closer at steps that could be taken to further enhance seismic safety.

We have said, and continue to say, that we will not restart either unit until the commission and ourselves are assured it is safe to do so.

• In the nuclear industry, safety comes first and we are unique among nuclear opera tors around the world in the extent to which we have planned for extreme events. It’s in our industry’s DNA to learn safety lessons and apply them at nuclear facilities across America.

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


5 Key Points About SONGS SONGS STATUS •

After extensive inspections and testing, unexpected “tube-to-tube” wear in the steam generator tubing in both units was found. The unexpected wear was far less extensive in Unit 2 than in Unit 3. Currently at SONGS both units are still safely offline.

RESPONSE •

A team of internal and external steam generator experts is evaluating repair and operations plans to ensure they meet the high safety standards required by the Nuclear Regulatory Commission.

SAFETY •

SONGS has never been closed down for a safety violation. The Nuclear Regulatory Commission has determined that SCE has operated in a manner that preserves the public’s health and safety during every year of the plant’s operation.

NUCLEAR ENERGY IN CALIFORNIA •

Nuclear energy produces about 20% of California’s electricity and is the largest, clean source of electricity that does not emit greenhouse gases. It also plays an important role in stabilizing this state’s electric grid - a critical aspect for importing power from remotely located renewable sources.

FINANCIAL IMPACT TO CUSTOMERS •

Before charging ratepayers, SCE will first look to warranties and insurance to recover the costs associated with the current outages. The California Public Commission will review any costs and determine if the costs were reasonably incurred.

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


SONGS Myths vs Facts Myth

FACT

Southern California doesn’t need San Onofre. We have more than enough solar and wind power to make it up.

Nuclear energy facilities supply 37% of California’s emission-free power and about 20% of California’s electricity. Nuclear energy is by far the largest clean air energy source and the only one that can produce large amounts of electricity day and night, and without weather constraints. So far, upgraded transmission lines and the temporary restart of gas-powered plants in Huntington Beach, combined with consumers’ tremendous conservation efforts have avoided any power shortages this summer. But California’s long-term goal for cleaner air, and reliable emission-free power can greatly benefits from San Onofre’s continued operation. The San Onofre Nuclear Generating Station provides “baseload” generation, meaning its power serves customers’ needs day and night, regardless of the weather. It also provides critical voltage support – which allows the local grid to import more power when demand is high from far-away renewable sources.

Myth

Fact

SONGS doesn’t have a good safety record.

Safety is the top priority at San Onofre and our safety-conscious work environment was noted in a letter from the Nuclear Regulatory Commission in 2012. The plant has never been closed down for a safety violation. The Nuclear Regulatory Commission has determined that SCE has operated in a manner that preserves the public’s health and safety each and every year of the plant’s operation.

Myth

Fact

SCE dramatically changed the steam generator design and didn’t tell the Nuclear Regulatory Commission.

The commission has publicly stated that SCE followed all required regulations in the steam generator replacement process and that SCE fully informed it of all changes, including the number of additional tubes added and changes to the support structures.

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION


Myth

Fact

Ratepayers are going to get stuck with all of the costs.

SCE will first look to warranties and insurance to recover costs associated with the current outages. The California Public Utilities Commission (CPUC) will review any costs and determine if the costs were reasonably incurred before impacting ratepayers.

Myth

Fact

San Onofre isn’t built for a Southern California big earthquake and what happened at Fukushima can happen here.

Every U.S. nuclear power plant is designed to withstand the maximum potential earthquake for its location without releasing radioactive materials. The commonly known Richter scale is not used to determine earthquake-building safety for any building. Instead, building safety relies on a more accurate value known as “peak ground acceleration,” which is based on the anticipated ground movement at the site during the largest potential earthquake, estimated by geologists. So it is not accurate to simply say that San Onofre was only built to withstand a 7.0 earthquake. As approved by the U.S. Nuclear Regulatory Commission, San Onofre was built to withstand a peak ground acceleration of at least 0.67g (g refers to the force of gravity). For comparison, the maximum ground acceleration experienced at Fukushima Daiichi was less — 0.561g in a horizontal direction.

Essential Energy for a Clean Future. SAN ONOFRE NUCLEAR GENERATING STATION

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