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Courtesy of Pacific Northwest National Laboratory.
By Kelsey Adkisson

As yet another heat wave shattered temperature records in the Pacific Northwest in mid-2021, threats of rolling blackouts rippled throughout the region.

These recurring extreme weather threats offer a sobering reminder that aging energy grids weren’t designed to handle the stress of climate change. Nor were they designed to withstand the energy impact from extreme events like heat waves, droughts, or wildfires, which are predicted to become more frequent and intense, according to Pacific Northwest National Laboratory’s (PNNL’s) Nathalie Voisin, a PNNL Earth scientist who is part of a team working on grid resilience in relation to climate change.

“Even under modest climate change projections, threats of power shortfalls will become more common,” said Voisin.

In the Pacific Northwest, which is dependent on hydropower to help generate electricity, more frequent heat waves, water scarcity, and increased wildfire risk put increased pressure on an overburdened power grid. Currently, over 90% of the western United States is facing drought conditions. One year ago, it was 40%.

To relieve some of that pressure, research teams at PNNL are focused on prevention. They are working to predict future drought scenarios and create hydropower and grid contingency plans, implement smart electricity load controls, manage forests to reduce the impact of wildfire, and place new grid infrastructure, like energy storage or microgrids, where they are needed most.

“When we’re talking about power shortfalls, even small steps add up. Shifting large appliance use, like a high amount of dishwashers or washing machines, from afternoon and evening peak hours to the morning or the night, or increasing thermostats a couple degrees in the summer and using ceiling or floor fans can make a difference,” said PNNL’s Dhruv Bhatnagar, an energy systems engineer.

What high temperatures mean for hydropower

The early summer heat wave of 2021 led to a spike in energy demand that left hydroelectric dam operators with a difficult choice: (1) use water to keep up with the surge, leaving less water for late summer, or (2) buy energy on the open market, often at higher prices and from natural gas.

PNNL modelers like Voisin are working to predict these types of events and the impacts to generation and load, including short-term issues like heat waves or longer-term issues like droughts via efforts like the Department of Energy’s HydroWIRES initiative.

Led by PNNL earth scientists Nathalie Voisin and Sean Turner, the research team used computer simulations to compare the risk of power shortfalls with no climate change versus modest climate change. (Video: Pacific NorthwestNational Laboratory)

PNNL researchers are using advanced modeling to predict droughts and provide grid operators with information for decisions on how to allocate power during extreme events. For instance, to simulate the impact of climate change on the future power grid, researchers used a computer model called GENESYS. Recent results showed that power systems will be affected by multiple stressors simultaneously, and these impacts compound and aren’t just additive.

PNNL is developing drought scenarios to help operators and regulatory agencies with future planning. This includes predicting future drought conditions and the impacts on hydropower and thermoelectric plants, which can then be used to understand the potential impact on grid operations and guide adaptation.

“This information is used to help operators make risk-informed decisions and determine where vulnerabilities may lie. Ultimately, it will help answer the question—given different stressors, will there be enough power to meet the demand and other power grid needs?” said Voisin.

“Will there be enough power to meet the demand?” — Nathalie Voisin, PNNL Earth scientist 

Recently, Voisin and her team evaluated how hydropower operations vary seasonally and annually depending on water availability for the Chelan Public Utility District. For example, they demonstrated that even during a dry summer, when hydropower’s overall generation is limited by low water availability, hydropower maintains its flexibility to support the peak load under extreme events. This highlights the need to better consider the range of services that hydropower can provide to address the resilience of the grid under extreme events.

Wildfire and hydropower

During an above-normal fire season, like what is currently occurring in California, there will likely be impacts on the grid, either through intentional shutoffs to reduce fire risk or loss of infrastructure due to the fire itself.

“The idea is not to stop all wildfires but to work in advance to reduce their risk, and predict areas that are more prone to them,” said PNNL’s Mark Wigmosta, a PNNL environmental engineer. Wigmosta’s work focuses on forest thinning and restoration with the goal of less fuel for fires.

“The idea is not to stop all wildfires but to work in advance to reduce their risk” — Mark Wigmosta, PNNL environmental engineer

Reducing fuel load in highly dense forests may leave more water in streams and can lead to higher, longer-lasting snowpack. This may produce more water throughout the summer dry season.

“This may provide a way to get more water into the system, depending on location,” said Wigmosta. Another grid benefit is that weaker fires are likely to burn less energy infrastructure. For example, between 2000 and 2016, wildfires caused at least $700 million in damages to 40 transmission lines in California. Nationwide costs from wildfires are significantly higher.

After fires burn, there is typically an increase in runoff and sedimentation. Sediment flows downstream, builds up in reservoirs, and “isn’t great for infrastructure, including turbines,” said Wigmosta. Prescribed burns or tree thinning can actually increase flow volumes and improve hydropower operations. And, weaker fires will have less of a negative impact on infrastructure and the grid.

Better technology from buildings to batteries

During peak power demands, like a heat wave, emerging technology offers the potential for consumers to manage or supplement loads. Smart tools, like intelligent load control, automatically manage building energy use during peak electricity demands. PNNL has been working on ways to make buildings more energy efficient, in addition to optimizing the future of hydropower.

Backup or autonomous power sources also offer promise, particularly during emergency situations. Microgrids are self-contained grids that can power key areas, such as hospitals or police stations, during power shortfalls that could occur during extreme events like a wildfire or hurricane. PNNL’s Microgrid Component Optimization for Resilience tool helps streamline the design process for microgrids with the goal of simulating power under a variety of outage conditions.

PNNL is also taking a leadership role in developing new technologies for grid-scale energy storage, which includes a new generation of battery materials and systems and other forms of energy storage. For example, current grid-scale energy storage systems such as pumped storage hydropower use pumps to move water uphill to store renewable energy when demand is low and generate power when demands are high as water flows downhill. PNNL has been working on incremental steps with pumped storage, such as evaluating environmental impacts of newer systems, to enhance future grid resilience or working with international stakeholders to identify strategies to finance and develop new projects. Even concepts like pairing batteries with hydropower are being explored to enhance hydropower’s capabilities and assure reliability during power shortages while reducing environmental impacts.

“Ultimately, we want to prepare for extreme events. Whether it’s through technological innovation, enhancing grid resilience, or supporting long-term planning. We take a holistic approach to tackling these big, long-term challenges to support risk-informed decision-making,” said Voisin.

This work was supported by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy and Office of Electricity, among other agencies.

 

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Yamaha throws in the towel, pulls out of e-bike market in North America

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Yamaha throws in the towel, pulls out of e-bike market in North America

Yamaha has announced to its dealers that it will be pulling its e-bikes out of the North American market at the end of this year. In the meantime, the brand says that it will offer sales of up to 60% off for its remaining inventory and continue to support its e-bikes already sold in the US for at least five more years.

Yamaha’s electric bikes have been well-received in global markets and have also received rave reviews in the US. However, the company’s higher prices make it harder to compete in the North American market, which is dominated by value-oriented models with significantly lower price points.

Yamaha’s various electric bikes designed for commuting, fitness, and mountain biking all feature higher-end components, which has resulted in the company competing more directly with premium bicycle shops. The company’s elaborate frames and in-house motors have added value to their models, yet have also contributed to a more premium price range.

Meanwhile, Yamaha hasn’t been immune to the same sales slowdown and overstocking issues that have plagued the e-bike industry over the last few years, as the company explained to its dealers in the letter seen below.

“Dear Yamaha eBike Dealer,

We want to thank you for your partnership and for your business in purchasing and retailing Yamaha eBikes, and for proudly representing the Yamaha brand. However, as you know, the combination of a post-COVID oversupply within the entire bicycle industry, coupled with a significant softening of the market, has resulted in a particularly challenging business environment where it is extremely difficult to achieve a sustainable business model. Given these market conditions, we regret to inform you that Yamaha has made the difficult decision to withdraw from the U.S. eBike business and cease wholesaling units effective the end of this year.

Yamaha Motor Corporation, U.S.A. (YMUS) entered the U.S. eBike market in 2018, and we have enjoyed the opportunity to partner with you these past six years to sell exciting, high-quality, all-road, mountain, and fitness/lifestyle eBikes.

We will continue to support your dealership in the sell down of your inventory by extending the current “Fan Promotion” program where customers may receive up to 60% off their purchase of a new Yamaha eBike. This “Fan Promotion” program will be offered on all units retailed and warranty registered through June 30, 2025. YMUS will continue to provide parts, service, and customer support in the United States both now and in support of our limited 5-year warranty.

Finally, we wish to express our sincere appreciation and gratitude to you and your staff for your dedication and support of the Yamaha eBike business.

Thank you for your understanding and support.”

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Toyota to buy clean power from a $1.1 billion solar farm in Texas

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Toyota to buy clean power from a .1 billion solar farm in Texas

Enbridge, a Canadian energy company, just announced it’s moving forward with an 815-megawatt (MW) solar project called Sequoia in Texas. When it’s done, it’ll be one of the largest solar farms in North America. The project’s price tag is a hefty $1.1 billion.

Enbridge’s Sequoia, around 150 miles west of Dallas, has already landed long-term power purchase agreements (PPAs) with AT&T and Toyota, ensuring most of its output is sold for years to come. This deal was highlighted in Enbridge’s third-quarter report on Friday.

Sequoia will be built in two phases, with power expected to start flowing in 2025 and 2026. Enbridge says it’s taken steps to reduce risks by securing equipment and procurement contracts in advance. Permits and purchase orders are also locked down.

Toyota’s PPA with Enbridge’s Texas solar project is part of Toyota’s broader push toward sustainability, as the automaker aims to achieve net zero by 2035 and match 45% of its purchased power with renewable electricity by 2026 as it still clings to its “diverse powertrain strategy.”


If you live in an area that has frequent natural disaster events, and are interested in making your home more resilient to power outages, consider going solar and adding a battery storage system. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. They have hundreds of pre-vetted solar installers competing for your business, ensuring you get high quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use and you won’t get sales calls until you select an installer and share your phone number with them.

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisers to help you every step of the way. Get started here. –trusted affiliate link*

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NIO’s EV sales top 20,000 for the sixth straight month as new low-cost SUV shows promise

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NIO's EV sales top 20,000 for the sixth straight month as new low-cost SUV shows promise

With its new electric SUV rolling out, NIO’s (NIO) sales topped the 20,000 mark again in Oct, its sixth straight month hitting the milestone.

NIO sold 20,976 vehicles last month, up 30.5% from October 2023. The NIO brand sold 16,657 vehicles, while its new “family-oriented smart vehicle brand,” Onvo, contributed 4,319 in its first full sales month.

After launching its new mid-size Onvo L60 electric SUV in September, NIO said production and deliveries are steadily ramping up.

At the end of October, NIO’s Onvo had 166 Centers and Spaces throughout 60 cities. Onvo plans to continue expanding its network to drive future growth.

NIO’s new electric SUV starts at around $21,200 (149,900) and is a direct rival to Tesla’s Model Y. The base $21K model is if you rent the battery. Even with the battery included, Onvo L60 prices still start at under $30,000 (206,900 yuan), with a CLTC range of up to 341 miles (555 km). That’s still less than the Model Y.

Tesla’s Model Y RWD starts at around $35,000 (249,900 yuan) with 344 mi (554 km) CLTC range in China.

NIO's-Oct-sales
Onvo L60 electric SUV models (Source: NIO Onvo)

NIO’s new Onvo brand drives higher Oct sales

NIO has often compared its new electric SUV to the Model Y, claiming it’s superior in many ways. The L60 has better consumption at 12.1 kWh/100km compared to the Model Y at 12.5 kWh/100km).

With a longer wheelbase (2,950 mm vs 2,890 mm), NIO’s electric SUV also provides slightly more interior space.

NIO's-Oct-sales
NIO Onvo L60 electric SUV (Source: Onvo)

Despite the L60’s success so far, NIO believes its second Onvo model will be an even bigger hit. It could be a potential game-changer.

“If you think the L60 is good, then this new model is a much more competitive product,” NIO’s CEO William Li told CnEVPost after launching the L60. Onvo will launch a new EV every year. Following the L60, Onvo will launch a new mid-to-large-size electric SUV next year.

NIO’s leader claims the new model will be revolutionary. According to Li, it will offer even more surprises than the L60. Deliveries are planned to begin in Q3 2025.

NIO Onvo L60 vs Tesla Model Y trims Range
(CLTC)
Starting Price
NIO Onvo L60 (Battery rental) 555 km (341 mi)
730 km (454 mi)
149,900 yuan ($21,200)
NIO Onvo L60 (60 kWh) 555 km (341 mi) 206,900 yuan ($29,300)
NIO Onvo L60 (85 kWh) 730 km (454 mi) 235,900 yuan ($33,400)
NIO Onvo L60 (150 kWh) +1,000 km (+621 mi) TBD
Tesla Model Y RWD 554 km (344 mi) 249,900 yuan ($34,600)
Tesla Model Y AWD Long Range 688 km (427 mi) 290,900 yuan ($40,300)
Tesla Model Y AWD Performance 615 km (382 mi) 354,900 yuan ($49,100)
NIO Onvo L60 compared to Tesla Model Y prices and range in China

Local reports suggest a six-or seven-seat electric SUV could hit the market even sooner. With rumors of a launch around Q1 2025, deliveries could happen as soon as May 2025.

According to sources close to the matter, the L60 is just a “stepping stone” with even more exciting EVs on the way. The source claimed the new six-seat option will start at around $42,100 (300,000 yuan).

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