Nuclear station sluggish to restart after earthquake

By Industrial Info Resources


NFPA 70b Training - Electrical Maintenance

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 12 hours Instructor-led
  • Group Training Available
Regular Price:
$599
Coupon Price:
$499
Reserve Your Seat Today
Kashiwazaki-Kariwa Nuclear Power Station, which is 240 kilometers northwest of Tokyo in the Niigata prefecture, experienced a shutdown due to a massive earthquake on July 16, 2007. The epicenter of the Chuuetsu Offshore Earthquake, measured at magnitude 6.6, occurred off the coast of Niigata, some 19 kilometers from Kashiwazaki-Kariwa.

Kashiwazaki-Kariwa, which is owned and operated by Tokyo Electric Power Company Incorporated TEPCO, began operations in 1985 and has an output of 7,965 megawatts MW, generated by five 1,067-MW boiling water reactors and two 1,315-MW advanced boiling water reactors.

At the time of the earthquake, units 1, 5 and 6 were down for scheduled maintenance. The remaining four units powered down safely in response to the earthquake as per protocol. TEPCO wanted to resume operations the day following the earthquake, but was ordered to keep Kashiwazaki-Kariwa powered down by the Ministry of Economy, Trade and Industry METI. The International Atomic Energy Agency IAEA conducted an inspection of the power station, concluding that no significant damage had been sustained and that TEPCO should re-evaluate seismic safety.

Kashiwazaki-Kariwa remained down for 21 months and was brought back online in May 2009, after Unit 7 was deemed seismically fit to resume operations. Units 6 and 1 soon followed.

According to recent information provided by TEPCO, units 1 and 7 have resumed normal operations, and Unit 5 is undergoing a full-capacity test run. Unit 5 is expected to enter normal operations very soon, and Unit 6 is down for scheduled maintenance. BWR units 2, 3 and 4 are still down and under inspection with no definite restart dates.

In the next year, units 7 and 6 are expected to undergo scheduled inspection and refueling. Part of the inspection will include an earthquake resistance examination. Unit 7 will be powered down for three months from the third quarter of 2011 to the fourth quarter of 2011, while Unit 6's three-month outage is expected to take place starting in the first quarter of 2012. Total investment value for inspection and refueling is expected to be about $218 million per unit.

Related News

DBRS Confirms Ontario Power Generation Inc. at A (low)/R-1 (low), Stable Trends

OPG Credit Rating affirmed by DBRS at A (low) issuer and unsecured debt, R-1 (low) CP, Stable trends, backed by a supportive regulatory regime, strong leverage metrics, and provincial support; monitor Darlington Refurbishment costs.

 

Key Points

It is DBRS's confirmation of OPG at A (low) issuer and unsecured, R-1 (low) CP, with Stable outlooks.

✅ Stable trends; strong cash flow-to-debt and capital ratios

✅ Provincial financing via OEFC; Fair Hydro Trust ring-fenced

✅ Darlington Refurbishment on budget; cost overruns remain risk

 

DBRS Limited (DBRS) confirmed the Issuer Rating and the Unsecured Debt rating of Ontario Power Generation Inc. (OPG or the Company) at A (low) and the Commercial Paper (CP) rating at R-1 (low), amid sector developments such as Hydro One leadership efforts to repair government relations and measures like staff lockdowns at critical sites.

All trends are Stable. The ratings of OPG continue to be supported by (1) the reasonable regulatory regime in place for the Company's regulated generation facilities, including stable pricing signals for large users, (2) strong cash flow-to-debt and debt-to-capital ratios and (3) continuing financial support from its shareholder, the Province of Ontario (the Province; rated AA (low) with a Stable trend by DBRS). The Province, through its agent, the Ontario Electricity Financial Corporation (rated AA (low) with a Stable trend by DBRS), provides most of OPG's financing (approximately 43% of consolidated debt). The Company's remaining debt includes project financing (31%), including projects such as a battery energy storage system proposed near Woodstock, non-recourse debt issued by Fair Hydro Trust (Senior Notes rated AAA (sf), Under Review with Negative Implications by DBRS; 11%), CP (2%) and Senior Notes issued under the Medium Term Note Program (12%).

In March 2019, the Province introduced 'Bill 87, Fixing the Hydro Mess Act, 2019' which includes winding down the Fair Hydro Plan, and later introduced electricity relief to mitigate customer bills during the COVID-19 pandemic. OPG will remain as the Financial Services Manager for the outstanding Fair Hydro Trust debt, which will become obligations of the Province. DBRS does not expect this development to have a material impact on the Company as (1) the Fair Hydro Trust debt will continue to be bankruptcy-remote and ring-fenced from OPG (all debt is non-recourse to the Company) and (2) the credit rating on the Company's investment in the Subordinated Notes (rated AA (sf), Under Review with Negative Implications by DBRS) will likely remain investment grade while the Junior Subordinated Notes (rated A (sf), Under Review with Developing Implications by DBRS) will not necessarily be negatively affected by this change (see the DBRS press release, 'DBRS Maintains Fair Hydro Trust, Series 2018-1 and Series 2018-2 Notes Under Review,' dated March 26, 2019, for more details).

OPG's key credit metrics improved in 2018, following the approval of its 2017-2021 rates application by the Ontario Energy Board in December 2017, alongside the Province's energy-efficiency programs that shape demand. The Company's profitability strengthened significantly, with corporate return on equity (ROE) of 7.8% (adjusted for a $205 million gain on sale of property; 5.1% in 2017) closer to the regulatory allowed ROE of 8.78%. However, DBRS continues to view a positive rating action as unlikely in the short term because of the ongoing large capital expenditures program, including the $12.8 billion Darlington Refurbishment project, amid ongoing oversight following the nuclear alert investigation in Ontario. However, a downgrade could occur should there be significant cost overruns with the Darlington Refurbishment project that result in stranded costs. DBRS notes that the Darlington Refurbishment project is currently on budget and on schedule.

 

Related News

View more

San Diego Gas & Electric Orders Mitsubishi Power Emerald Storage Solution

SDG&E Mitsubishi Power Energy Storage adds a 10 MW/60 MWh BESS in Pala, boosting grid reliability, renewable integration, and flexibility with EMS and SCADA controls, LFP safety chemistry, NERC CIP compliance, UL 9540 standards.

 

Key Points

A 10 MW/60 MWh BESS for SDG&E in Pala that enhances grid reliability, renewables usage, and operational flexibility.

✅ Emerald EMS/SCADA meets NERC CIP, IEC/ISA 62443, NIST 800-53

✅ LFP chemistry with UL 9540 and UL 9540A safety compliance

✅ Adds capacity, energy, and ancillary services to CA grid

 

San Diego Gas & Electric Company (SDG&E), a regulated public utility that provides energy service to 3.7 million people, has awarded Mitsubishi Power an order for a 10 megawatt (MW) / 60 megawatt-hour (MWh) energy storage solution for its Pala-Gomez Creek Energy Storage Project in Pala, California. The battery energy storage system (BESS) will add capacity to help meet high energy demand, support grid reliability and operational flexibility, underscoring the broader benefits of energy storage now recognized by utilities, maximize use of renewable energy, and help prevent outages during peak demand.

The BESS project is Mitsubishi Power’s eighth in California, bringing total capacity to 280 MW / 1,140 MWh of storage to help meet California’s clean energy goals with reliable power to complement renewables, alongside emerging solutions like a California green hydrogen microgrid for added resilience.

Mitsubishi Power’s Emerald storage solution for SDG&E includes full turnkey design, engineering, procurement, and construction, as well as a 10-year long-term service agreement, aligning with CEC long-duration storage funding initiatives underway. It is scheduled to be online in early 2023.

The project will repower an existing energy storage site. It will employ Mitsubishi Power’s Emerald Integrated Plant Controller, which is an Energy Management System (EMS) and Supervisory Control and Data Acquisition (SCADA) system with real-time BESS operation and a monitoring/supervisory control platform. Mitsubishi Power leverages its decades of technology monitoring and diagnostics to turn data into actionable insights to maximize reliability, a priority as regions like Ontario increasingly rely on battery storage to meet rising demand. The Mitsubishi Power Emerald Integrated Plant Controller complies with North American Electric Reliability Corporation critical infrastructure protection (NERC CIP) standards and meets the highest security certification in the energy storage industry (IEC/ISA 62443, NIST 800-53) for maximum protection from cybersecurity risks and vulnerabilities.

For added physical safety, Mitsubishi Power’s solution employs lithium iron phosphate (LFP) battery chemistry, aligning with BESS adoption in New York where safety and performance are critical. Compared with other chemistries, LFP provides longer life and superior thermal stability and chemical stability, while meeting UL 9540 and UL 9540A safety standards.

Fernando Valero, Director, Advanced Clean Technology, SDG&E, said, “SDG&E is committed to achieving net-zero greenhouse gas emissions by 2045. We are increasing our portfolio of energy storage assets, including virtual power plant models, to reach this goal. These assets enhance grid reliability and operational flexibility while maximizing our use of abundant renewable energy sources in California.”

Tom Cornell, Senior Vice President, Energy Storage Solutions, Mitsubishi Power Americas, said, “As more and more renewables come online during the energy transition, BESS solutions are essential to support a reliable and stable grid. We look forward to providing SDG&E with our BESS solution to add capacity, energy, and ancillary services to California’s grid. Mitsubishi Power’s Emerald storage solutions are enabling a smarter and more resilient energy future for our customers in California and around the globe, with projects like an energy storage demonstration in India underscoring this momentum.”

 

Related News

View more

Closure of 3 Southern California power plants likely to be postponed

California Gas Plant Extensions keep Ormond Beach, AES Alamitos, and Huntington Beach on standby for grid reliability during heat waves, as regulators balance renewables, battery storage, and power, pending State Water Resources Control Board approval.

 

Key Points

State plan extending three coastal gas plants to 2026, adding capacity as California expands renewables and storage.

✅ Extends Ormond Beach, AES Alamitos, AES Huntington Beach

✅ Mitigates blackout risk during extreme heat and peak demand

✅ Pending State Water Resources Control Board approval

 

Temperatures in many California cities are cooling down this week, but a debate is simmering on how to generate enough electricity to power the state through extreme weather events while transitioning away from a reliance on fossil fuels as clean energy progress indicates statewide.

The California Energy Commission voted Wednesday to extend the life of three gas power plants along the state’s southern coast through 2026, even as natural-gas electricity records persist nationwide, postponing a shutoff deadline previously set for the end of this year. The vote would keep the decades-old facilities _ Ormond Beach Generating Station, AES Alamitos and AES Huntington Beach — open so they can run during emergencies.

The state is at a greater risk of blackouts during major events when many Californians simultaneously crank up their air conditioning, such as a blistering heat wave, illustrated by widespread utility shutoffs in recent years.

“We need to move faster in incorporating renewable energy. We need to move faster at incorporating battery storage. We need to build out chargers faster,” commissioner Patricia Monahan said amid an ongoing debate over the classification of nuclear power in California. “We’re working with all the energy institutions to do that, but we are not there yet.”

The plan, put together by the state’s Department of Water Resources, still needs final approval from the State Water Resources Control Board, which may vote on the issue next week. Democratic Gov. Gavin Newsom signed legislation last year creating an energy reserve the state could use as a last resort if there is likely to be an energy shortage, a challenge mirrored by Ontario electricity shortfall concerns elsewhere. The law allowed the Department of Water Resources to fund or secure power sources in those instances, after PG&E shutdown reasons drew attention to grid vulnerabilities.

The commission acknowledged it was a difficult decision. Environmentalists say the state needs to transition to more short- and long-term solutions that will help it move away from fossil fuels and to rely more on renewable energy sources like solar and wind, similar to Ontario's clean power push in recent years. They’re also concerned about the health impacts associated with pollution from gas plants.

 

Related News

View more

Ontario introduces new 'ultra-low' overnight hydro pricing

Ontario Ultra-Low Overnight Electricity Rates cut costs for shift workers and EV charging, with time-of-use pricing, off-peak savings, on-peak premiums, kilowatt-hour details, and Ontario Energy Board guidance for homes and businesses across participating utilities.

 

Key Points

Ontario's ultra-low overnight plan: 2.4c/kWh 11pm-7am for EVs, shift workers; higher daytime on-peak pricing.

✅ 2.4c/kWh 11pm-7am; 24c/kWh on-peak 4pm-9pm

✅ Best for EV charging, shift work, night usage

✅ Available provincewide by Nov 1 via local utilities

 

The Ontario government is introducing a new ultra-low overnight price plan that can benefit shift workers and individuals who charge electric vehicles while they sleep.

Speaking at a news conference on Tuesday, Energy Minister Todd Smith said the new plan could save customers up to $90 a year.

“Consumer preferences are still changing and our government realized there was more we could do, especially as the province continues to have an excess supply of clean electricity at night when province-wide electricity demand is lower,” Smith said, noting a trend underscored by Ottawa's demand decline during the pandemic.

The new rate, which will be available as an opt-in option as of May 1, will be 2.4 cents per kilowatt-hour from 11 p.m. to 7 a.m. Officials say this is 67 per cent lower than the current off-peak rate, which saw a off-peak relief extension during the pandemic.

However, customers should be aware that this plan will mean a higher on-peak rate, as unlike earlier calls to cut peak rates, Hydro One peak charges remained unchanged for self-isolating customers.

The new plan will be offered by Toronto Hydro, London Hydro, Centre Wellington Hydro, Hearst Power, Renfrew Hydro, Wasaga Distribution, and Sioux Lookout Hydro by May. Officials have said this will be expanded to all local distribution companies by Nov. 1.

With the new addition of the “ultra low” pricing, there are now three different electricity plans that Ontarians can choose from. Here is what you have to know about the new hydro options:

TIME OF USE:
Most residential customers, businesses and farms are eligible for these rates, similar to BC Hydro time-of-use proposals in another province, which are divided into off-peak, mid-peak and on-peak hours.

This is what customers will pay as of May 1 according to the Ontario Energy Board, following earlier COVID-19 electricity relief measures that temporarily adjusted rates:

 Off-peak (Weekdays between 7 p.m. and 7 a.m. and on weekends/holidays): 7.4 cents per kilowatt-hour
 Mid-Peak (Weekdays between 7 a.m. and 11 a.m., and between 5 p.m. and 7 p.m.): 10.2 cents per kilowatt-hour
 On-Peak ( Weekdays 11 a.m. to 5 p.m.): 15.1 cents per kilowatt-hour

TIERED RATES
This plan allows customers to get a standard rate depending on how much electricity is used. There are various thresholds per tier, and once a household exceeds that threshold, a higher price applies. Officials say this option may be beneficial for retirees who are home often during the day or those who use less electricity overall.

The tiers change depending on the season. This is what customers will pay as of May 1:

 Residential households that use 600 kilowatts of electricity per month and non-residential businesses that use 750 kilowatts per month: 8.7 cents per kilowatt-hour.
 Residences and businesses that use more than that will pay a flat rate of 10.3 cents per kilowatt-hour


ULTRA-LOW OVERNIGHT RATES
Customers can opt-in to this plan if they use most of their electricity overnight.

This is what customers will pay as of May 1:

  •  Between 11 p.m. and 7 a.m.: 2.4 cents per kilowatt-hour
  •  Weekends and holidays between 7 a.m. and 11 p.m.: 7.4 cents per kilowatt-hour
  •  Mid-Peak (Weekdays between 7 a.m. and 4 p.m., and between 9 p.m. and 11 p.m.): 10.2 cents per kilowatt-hour
  •  On-Peak (weekdays between 4 p.m. and 9 p.m.): 24 cents per kilowatt-hour

More information on these plans can be found on the Ontario Energy Board website, alongside stable pricing for industrial and commercial updates from the province.

 

Related News

View more

California Halts Energy Rebate Program Amid Trump Freeze

California energy rebate freeze disrupts heat pump incentives, HVAC upgrades, and climate funding, as federal uncertainty stalls Inflation Reduction Act support, delaying home electrification, energy efficiency gains, and greenhouse gas emissions reductions statewide.

 

Key Points

A statewide pause on $290M incentives for heat pumps and HVAC upgrades due to federal climate funding uncertainty.

✅ $290M program paused amid federal funding freeze

✅ Heat pump, HVAC, electrification upgrades delayed

✅ Previously approved rebates honored; new apps halted

 

California’s push for a more energy-efficient future has hit a significant roadblock as the state pauses a $290 million rebate program aimed at helping homeowners replace inefficient heating and cooling systems with more energy-efficient alternatives. The California Energy Commission announced the suspension of the program, citing uncertainty stemming from President Donald Trump’s decision to freeze funding for various climate-related initiatives.

The Halted Program

The energy rebate program, which utilizes federal funding to encourage the use of energy-efficient appliances such as heat pumps, was a crucial part of California’s efforts to reduce energy consumption and greenhouse gas emissions. By providing financial incentives for homeowners to upgrade to more efficient heating and cooling systems, the program aimed to make green energy solutions more accessible and affordable to residents. The rebate program had been popular, with many homeowners eager to participate in the initiative to lower their energy costs and improve the sustainability of their homes.

However, due to the uncertainty surrounding federal funding, the California Energy Commission announced on Monday that it would no longer be accepting new applications for the program. The agency did clarify that it would continue to honor rebates for applications that had already been approved. The pause will remain in effect until the Trump administration provides more clarity regarding the program's future funding.

The Trump Administration’s Role

This move highlights a broader issue regarding access to federal funding for state-level energy programs. The Trump administration’s decision to freeze funding for climate-related initiatives has left many states in limbo, as previously approved federal money has not been distributed as expected. Despite federal court rulings directing the Trump administration to restore these funds, states like California are still struggling to navigate the uncertainty of climate-related financial support from the federal government.

California’s decision to pause the rebate program comes after similar actions by other states. Arizona paused a similar program just a week prior, and Rhode Island had already paused new applications earlier this year. These states are all recipients of funding from a larger $4.3 billion initiative under the Inflation Reduction Act, which is designed to help homeowners purchase energy-efficient appliances like heat pumps, water heaters, and electric cooktops.

Impact of the Freeze

The pause of California's rebate program has serious implications for both consumers and the state’s energy goals. For residents, the halt means delays in the ability to upgrade to more energy-efficient home systems, which could lead to higher energy costs in the short term, a concern amid soaring electricity prices across the state.

The $290 million program was a significant step in encouraging homeowners to invest in energy efficiency, and its suspension leaves a gap in the availability of resources for those who were hoping to make energy-saving upgrades. Many of these upgrades are not just beneficial to homeowners, but they also contribute to the state’s overall energy efficiency goals, helping to reduce reliance on non-renewable energy sources, even as California's dependence on fossil fuels persists, and decrease greenhouse gas emissions.

Federal and State Tensions

The freeze in funding is just one of many points of tension between the Trump administration and states like California, which have pursued aggressive environmental policies aimed at reducing emissions and combating climate change. California has often found itself at odds with the federal government on environmental issues, especially under the leadership of President Trump. The state’s ambitious environmental policies have sometimes clashed with the federal government's approach, including efforts to wind down its fossil fuel industry in line with climate goals.

In this case, the freeze on climate-related funding appears to be part of a broader strategy by the Trump administration to limit federal spending on environmental programs, and as regulators weigh whether the state may need more power plants, planning remains complex. While the freeze impacts states that are working to transition to clean energy, critics argue that such moves undermine efforts to tackle climate change and could slow down progress toward a greener future.

The Path Forward

For California, the next steps will depend heavily on the actions of the federal government. While the state can continue to push for climate funding in the courts, the lack of clarity around the release of federal funds creates uncertainty for state programs that rely on these resources. As California continues to navigate this funding freeze, it will need to explore alternative solutions to keep its energy efficiency programs on track, such as efforts to revamp electricity rates to clean the grid, even in the face of federal challenges.

In the meantime, California residents and homeowners who were hoping to take advantage of the rebate program may have to wait until further clarification from the federal government is provided, even as officials warn of a looming electricity shortage in coming years. Whether the program can be restored or expanded in the future remains to be seen, but for now, the pause serves as a reminder of the ongoing struggles that states face when dealing with shifting federal priorities.

As the issue unfolds, other states facing similar challenges may take cues from California’s actions, and with California exporting energy policies to Western states, broader conversations about how federal and state governments can collaborate to ensure that energy efficiency initiatives and climate goals are not sidelined due to political or budgetary differences.

California’s decision to pause its $290 million energy rebate program is a significant development in the ongoing struggle between state and federal governments over climate-related funding. The uncertainty created by the Trump administration’s freeze on energy efficiency programs has led to disruptions in state-level efforts to promote sustainability and reduce emissions. As the situation continues to evolve, both California and other states will need to consider how to move forward without relying on federal funding that may or may not be available in the future.

 

Related News

View more

Electricity prices spike in Alberta

Alberta electricity price spike drives 25% CPI surge amid heatwave demand, coal-to-gas conversions, hydro shortfalls, and outages; consumers weigh fixed-rate plans, solar panels, home retrofits, and variable rates to manage bills and grid volatility.

 

Key Points

A recent 25% monthly rise in Alberta power prices driven by heatwave demand, constraints, outages, and fuel shifts.

✅ Heatwave pushed summer peak demand near record

✅ Coal-to-gas conversions and outages tightened supply

✅ Fixed-rate plans, solar, retrofits can reduce bill risk

 

Albertans might notice they are paying more when the next electricity bill comes in as bills on the rise in Calgary alongside provincial trends.

According to the consumer price index, Alberta saw its largest monthly increase since July 2015 as the price of electricity in Alberta rose 25 per cent amid rising electricity prices across the province.

“So I paid negative $70 last month. I actually made money. To supply power to the grid,” said Conrad Nobert, with Climate Action Edmonton.

Norbert is an environmental activist who favours solar power and is warning that prices will continue to go up along with the rising effects from climate change.

“My thoughts are that we can mitigate the price of power going up by taking climate action.”

Alberta experienced one of the hottest summers on record and many people were left scrambling to buy air conditioners.

That demand, along with a number of other factors, drove up prices, prompting some households to lock in rates for protection, says an assistant professor at the University of Calgary who teaches electricity systems.

“At the end of June, during the heatwave, we were a couple megawatts shy of setting an all-time record demand for electricity in the province. That would have been the first time that record for demand in the summer. Traditionally Alberta is a winter peaking province, as shown by an electricity usage record during a deep freeze not long ago,” explained Sara Hastings Simon, an assistant professor at the University of Calgary.

Other reasons for the spike: Alberta’s continuing shift from coal to natural-gas-fired power and changes to electricity production and pricing across the market.

There are a few ways consumers can save money on their power bill; installing solar panels and retrofitting your home to opting for a fixed-rate plan, or considering protections like a consumer price cap where applicable.

“So by default, people are put into a variable rate plan, that changes month to month and that helps to manage prices so you don’t get that big surprise at where prices might be. I think we will get a lot more people looking at that option.”

A statement provided by Dale Nally, Alberta’s Associate Minister of natural gas and electricity, noted recent policy changes including the carbon tax repeal and price cap now in place that affect consumers, says in part:

“This period of high market prices is driven by low supplies of hydro-generated electricity from British Columbia and the pacific northwest, scheduled outages for coal-gas-conversions, unplanned infrastructure outages and unprecedented, and record-breaking high demand due to hot weather. We expect some of the factors that have caused recent increases in prices will be short-term.”

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Live Online & In-person Group Training

Advantages To Instructor-Led Training – Instructor-Led Course, Customized Training, Multiple Locations, Economical, CEU Credits, Course Discounts.

Request For Quotation

Whether you would prefer Live Online or In-Person instruction, our electrical training courses can be tailored to meet your company's specific requirements and delivered to your employees in one location or at various locations.