Solar and wind power curtailments are rising in California

Kootenay Lake Electric-Ready Ferry advances clean technology in BC, debuting as a hybrid diesel-electric vessel with shore power conversion planned, capacity and terminal upgrades to cut emissions, reduce wait times, and modernize inland ferry service.

Key Points

Hybrid diesel-electric ferry replacing MV Balfour, boosting capacity, and aiming for full electric conversion by 2030.

✅ Doubles vehicle capacity; runs with MV Osprey 2000 in summer

✅ Hybrid-ready systems installed; shore power to enable full electric

✅ Terminal upgrades at Balfour and Kootenay Bay improve reliability

An electric-ready ferry for Kootenay Lake is scheduled to begin operations in 2023, aligning with first electric passenger flights planned by Harbour Air, the province announced in a Sept. 3 press release.

Construction of the $62.9-million project will begin later this year, which will be carried out by Western Pacific Marine Ltd., reflecting broader CIB-supported ferry investments in B.C. underway.

“With construction beginning here in Canada on the new electric-ready ferry for Kootenay Lake, we are building toward a greener future with made-in-Canada clean technology,” said Catherine McKenna, the federal minister of infrastructure and communities.

The new ferry — which is designed to provide passengers with a cleaner vessel informed by advances in electric ships and more accessibility — will replace and more than double the capacity of the MV Balfour, which will be retired from service.

“This is an exciting milestone for a project that will significantly benefit the Kootenay region as a whole,” said Michelle Mungall, MLA for Nelson-Creston. “The new, cleaner ferry will move more people more efficiently, improving community connections and local economies.”

Up to 55 vehicles can be accommodated on the new ship, and will run in tandem with the larger MV Osprey 2000 to help reduce wait times, a strategy also seen with Washington State Ferries hybrid-electric upgrades, during the summer months.

“The vessel will be fully converted to electric propulsion by 2030, once shore power is installed and reliability of the technology advances for use on a daily basis, as demonstrated by Harbour Air's electric aircraft testing on B.C.'s coast,” said the province.

They noted that they are working to electrify their inland ferry fleet by 2040, as part of their CleanBC initiative.

“The new vessel will be configured as a hybrid diesel-electric with all the systems, equipment and components for electric propulsion,” they said.

Other planned projects include upgrades to the Balfour and Kootenay Bay terminals, and minor dredging has been completed in the West Arm.

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California Electric School Bus Mandate 2035 sets zero-emission requirements, outlines funding, state reimbursement, fleet electrification, infrastructure, and cost estimates, highlighting exemptions for frontier districts and alignment with clean transportation and climate policy goals.

Key Points

California's 2035 policy requires all new school buses be zero-emission, with funding and limited rural exemptions.

✅ Mandates zero-emission purchases for new school buses from 2035

✅ Estimates $5B transition cost with state reimbursement support

✅ Frontier districts may apply for 5-year extensions

California Governor Gavin Newsom has signed a new legislation requiring that from 2035, all newly ordered or contracted school buses must be zero-emission, a move aligned with California's push for expanded EV grid capacity statewide.

The state estimates that switching to electric school buses will cost around five billion dollars over the next decade, a projection reflecting electric bus challenges seen globally. That is because a diesel equivalent costs about 200,000 dollars less than a battery-electric version, as highlighted by critical analyses of California policy. And “the California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state.”

There are about 23,800 school buses on the road in California. About 500 are already electric, with conversion initiatives expected to expand the total, and 2,078 electric buses have been ordered.

There are – as always- exceptions to the rule. So-called “frontier districts,” which have less than 600 students or are in a county with a population density of less than ten persons per square mile, can file for a five-year extension, drawing on lessons from large electric bus fleets about route length and charging constraints. However, they must “reasonably demonstrate that a daily planned bus route for transporting pupils to and from school cannot be serviced through available zero-emission technology in 2035.”

Califonia is the fifth US state to mandate electric school buses, and jurisdictions like British Columbia are deploying electric school buses as well. Connecticut, Maryland, Maine, and New York implemented similar legislation, while California continues broader zero-emission freight adoption with Volvo VNR electric trucks entering service across the state.

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Thermoradiative Diode Power leverages infrared radiation and night-sky cooling to harvest waste heat. Using MCT (mercury cadmium telluride) detectors with photovoltaics, it extends renewable energy generation after sunset, exploiting radiative cooling and low-power density.

Key Points

Technology using MCT infrared diodes to turn radiative Earth-to-space heat loss into electricity, aiding solar at night.

✅ MCT diodes radiate to cold sky, generating tiny current at 20 C

✅ Complements photovoltaics by harvesting post-sunset infrared flux

✅ Potential up to one-tenth solar output with further efficiency gains

Conventional solar technology soaks up rays of incoming sunlight to bump out a voltage. Strange as it seems, some materials are capable of running in reverse, producing power as they radiate heat back into the cold night sky environment.

A team of engineers in Australia has now demonstrated the theory in action, using the kind of technology commonly found in night-vision goggles to generate power, while other research explores electricity from thin air concepts under ambient humidity.

So far, the prototype only generates a small amount of power, and is probably unlikely to become a competitive source of renewable power on its own – but coupled with existing photovoltaics technology and thermal energy into electricity approaches, it could harness the small amount of energy provided by solar cells cooling after a long, hot day's work.

"Photovoltaics, the direct conversion of sunlight into electricity, is an artificial process that humans have developed in order to convert the solar energy into power," says Phoebe Pearce, a physicist from the University of New South Wales.

"In that sense, the thermoradiative process is similar; we are diverting energy flowing in the infrared from a warm Earth into the cold Universe."

By setting atoms in any material jiggling with heat, you're forcing their electrons to generate low-energy ripples of electromagnetic radiation in the form of infrared light, a principle also explored with carbon nanotube energy harvesters in ambient conditions.

As lackluster as this electron-shimmy might be, it still has the potential to kick off a slow current of electricity. All that's needed is a one-way electron traffic signal called a diode.

Made of the right combination of elements, a diode can shuffle electrons down the street as it slowly loses its heat to a cooler environment.

In this case, the diode is made of mercury cadmium telluride (MCT). Already used in devices that detect infrared light, MCT's ability to absorb mid-and long-range infrared light and turn it into a current is well understood.

What hasn't been entirely clear is how this particular trick might be used efficiently as an actual power source.

Warmed to around 20 degrees Celsius (nearly 70 degrees Fahrenheit), one of the tested MCT photovoltaic detectors generated a power density of 2.26 milliwatts per square meter.

Granted, it's not exactly enough to boil a jug of water for your morning coffee. You'd probably need enough MCT panels to cover a few city blocks for that small task.

But that's not really the point, either, given it's still very early days in the field, and there's potential for the technology to develop significantly further in the future.

"Right now, the demonstration we have with the thermoradiative diode is relatively very low power. One of the challenges was actually detecting it," says the study's lead researcher, Ned Ekins-Daukes.

"But the theory says it is possible for this technology to ultimately produce about 1/10th of the power of a solar cell."

At those kinds of efficiencies, it might be worth the effort weaving MCT diodes into more typical photovoltaic networks alongside thin-film waste heat solutions so that they continue to top up batteries long after the Sun sets.

To be clear, the idea of using the planet's cooling as a source of low-energy radiation is one engineers have been entertaining for a while now. Different methods have seen different results, all with their own costs and benefits, with low-cost heat-to-electricity materials also advancing in parallel.

Yet by testing the limits of each and fine-tuning their abilities to soak up more of the infrared bandwidth, we can come up with a suite of technologies and thermoelectric materials capable of wringing every drop of power out of just about any kind of waste heat.

"Down the line, this technology could potentially harvest that energy and remove the need for batteries in certain devices – or help to recharge them," says Ekins-Daukes.

"That isn't something where conventional solar power would necessarily be a viable option."

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U.S. Solar-Plus-Storage Growth 2021-2024 highlights rising battery storage co-location with solar PV, grid flexibility, RTO/ISO market signals, and ITC incentives, enabling peak shaving, firming renewable output, and reliable night-time power.

Key Points

Summary of U.S. plans pairing battery storage with solar PV, guided by RTO/ISO markets, grid needs, and ITC policy.

✅ 9.4 GW (63%) co-located with solar PV by 2024

✅ 97% of standalone capacity sited in RTO/ISO regions

✅ ITC improves project economics and grid services revenue

Of the 14.5 gigawatts (GW) of battery storage power capacity planned to come online amid anticipated growth in solar and storage in the United States from 2021 to 2024, 9.4 GW (63%) will be co-located with a solar photovoltaic (PV) solar-plus-storage power plant, based on data reported to us and published in our Annual Electric Generator Report. Another 1.3 GW of battery storage will be co-located at sites with wind turbines or fossil fuel-fired generators, such as natural gas-fired plants. The remaining 4.0 GW of planned battery storage will be located at standalone sites.

Historically, most U.S. battery systems have been located at standalone sites. Of the 1.5 GW of operating battery storage capacity in the United States at the end of 2020, 71% was standalone, and 29% was located onsite with other power generators.

Most standalone battery energy storage sites have been planned or built in power markets that are governed by regional transmission organizations (RTOs) and independent system operators (ISOs). RTOs and ISOs can enforce standard market rules that lay out clear revenue streams for energy storage projects in their regions, which promotes the deployment of battery storage systems. Of the utility-scale pipeline battery systems announced to come online from 2021 to 2024, 97% of the standalone battery capacity and 60% of the co-located battery capacity are in RTO/ISO regions.

Over 90% of the planned battery storage capacity outside of RTO and ISO regions will be co-located with a solar PV plant. At some solar PV co-located plants, the batteries can charge directly from the onsite solar generator when electricity demand and prices are low. They can then discharge electricity to the grid when peak demand is higher or when solar generation is unavailable, such as at night.

Although factors such as cloud cover can affect solar generation output, solar generators, now the number three renewable source in the U.S., in particular can effectively pair with battery storage because of their relatively regular daily generation patterns. This predictability works well with battery systems because battery systems are limited in how long they can discharge their power capacity before needing to recharge. If paired with a wind turbine, for example, a battery system could go days before having the opportunity to fully recharge.

Another advantage of pairing batteries with renewable generators is the ability to take advantage of tax incentives such as the Investment Tax Credit (ITC), which is available for solar projects, and other favorable government plans supporting deployment.

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Bimbo Canada VPPAs secure renewable electricity from RES wind and solar projects in Alberta, totaling 170MW, via 15-year contracts to offset consumption, advance RE100 goals, and drive decarbonization across bakeries, depots, and distribution centers.

Key Points

Virtual power purchase agreements sourcing wind and solar to offset Bimbo Canadas electricity and support RE100.

✅ 15-year RES contracts for Alberta wind and solar capacity

✅ Offsets electricity for bakeries, depots, and distribution centers

✅ Advances Grupo Bimbo RE100 target for 100% renewable power

Canada's oldest and largest bakery, Bimbo Canada, has signed two virtual power purchase agreements (VPPAs) with Renewable Energy Systems  (RES) to procure renewable electricity, similar to federal green electricity contracts advancing in Alberta, that will offset 100 per cent of the company's electricity consumption in Canada. The projects are expected to be fully operational by December, 2022.

Canada is the second market, alongside the United States, to enter into VPPAs, where companies like Amazon clean energy projects are expanding rapidly. These agreements, together with additional sustainability initiatives conducted around the world by the parent company Grupo Bimbo, will help the company offset 90 per cent of its global electricity consumption.

"Bimbo Canada is committed to nourishing a better world through productive sustainability practices," said Joe McCarthy, president of Bimbo Canada. "These agreements are the next big step in reducing our environmental footprint, as peers such as Arvato's first solar plant signal industry momentum, and becoming leaders in responsible stewardship of the environment."

The 15-year agreements with RES will support the commercial development of two renewable energy projects in southern Alberta, consisting of wind and solar projects, similar to RBC's solar PPA announced in the region, totaling 170MW of installed capacity. Under these two agreements, Bimbo Canada will procure the benefit of approximately 50MW of renewable electricity to offset electricity consumption for its 16 bakeries, 14 distribution centres and 191 depots. Commercial development for the wind and solar farms will be finalized later this year by RES Canada and the projects are expected to be fully operational by the end of next year.  

"RES is proud that its Alberta wind and solar projects, amid growth such as a $200M Alberta wind farm led by a Buffett-linked firm, are helping Bimbo Canada meet its sustainability initiatives," said Peter Clibbon, RES Senior VP of Development. "It's a win-win situation with our projects delivering competitive wind and solar electricity to Bimbo Canada, and while providing our host communities with long-term tax and landowner income."

In 2018, Grupo Bimbo joined RE100, a global initiative led by The Climate Group and in partnership with Carbon Disclosure Project (CDP) and committed to operating with 100 per cent renewable electricity by 2025. As a leading supplier of fresh-baked goods and snacks for Canadian families, these agreements support the company's targets and builds upon many successful past sustainability initiatives, as market activity by Canadian Solar project sales continues nationwide.

"The renewable electricity initiatives in our operations respond to Grupo Bimbo's deep commitment that we have had for many decades globally with the planet and with present and future generations," said Daniel Servitje, global CEO of Grupo Bimbo. "With this announcement, we have achieved another important milestone for the company on our journey towards becoming 100 per cent renewable electricity by 2025."

Last year, Bimbo Canada reduced product waste and exceeded its product waste reduction target by 18 per cent, which saved four million units of products from landfills. The company also eliminated 174 metric tonnes of plastic per year (equal to 43 adult elephants) through several packaging optimization initiatives.

Earlier this year, Bimbo Canada signed the Canada Plastics Pact (CPP) and, amid a broader push for clean energy exemplified by Edmonton rooftop solar installations, earned its first ENERGY STAR certification for its Hamilton, Ontario bakery. The company will continue to work towards other initiatives that fulfill its commitment to be a sustainable, highly productive and deeply humane company.

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UK EV Grid Capacity leverages smart charging, V2G, renewable energy, and interconnectors to manage peak demand as adoption grows, with National Grid upgrades, rapid chargers, and efficiency gains enabling a reliable, scalable charging infrastructure nationwide.

Key Points

UK EV grid capacity is the power network's readiness to meet EV demand using smart charging, V2G, and upgrades.

✅ Smart charging shifts load to off-peak, cheaper renewable hours

✅ V2G enables EVs to supply power and balance peak demand

✅ National Grid upgrades and interconnectors expand capacity

The surge of electric vehicles (EVs) on our roads raises a crucial question: can the UK's electricity grid handle the additional demand? While this is a valid concern, it's important to understand the gradual nature of EV adoption, ongoing grid preparations, and innovative solutions being developed.

A Gradual Shift, Not an Overnight Leap

Firstly, let's dispel the myth of an overnight transition. EV adoption will unfold progressively, driven by factors like affordability and the growing availability of used models. The government's ZEV mandate outlines a clear trajectory, with a gradual rise from 22% EV sales in 2024 to 80% by 2030. This measured approach allows for strategic grid improvements to accommodate the increasing demand.

Preparing the Grid for the Future

Grid preparations for the EV revolution have been underway for years. Collaborations between the government, electricity providers, service stations, and charging point developers are ensuring grid coordination across the system. Renewable energy sources like offshore wind farms, combined with new nuclear power and international interconnections, are planned to meet the anticipated 120 terawatt-hour increase in demand. Additionally, improvements in energy efficiency have reduced overall electricity consumption, creating further capacity.

Addressing Peak Demand Challenges

While millions of EVs charging simultaneously might seem like they could challenge power grids, solutions are being implemented to manage peak demand:

1. Smart Charging: This technology allows EVs to charge during off-peak hours when renewable electricity is abundant and cheaper. This not only benefits the grid but also saves owners money. The UK government's EV Smart Charge Points Regulations ensure all new chargers have this functionality.

2. Vehicle-to-Grid (V2G) Technology: This futuristic concept transforms EVs into energy storage units, often described as capacity on wheels, allowing owners to sell their unused battery power back to the grid during peak times. This not only generates income for owners but also helps balance the grid and integrate more renewable energy.

3. Sufficient Grid Capacity: Despite concerns, the grid currently has ample capacity. The highest peak demand in recent years (62GW in 2002) has actually decreased by 16% due to energy efficiency improvements. Even with widespread EV adoption, the expected 10% increase in demand remains well within the grid's capabilities with proper management in place.

National Grid's Commitment:

National Grid and other electric utilities are actively involved in upgrading and expanding the grid to accommodate the clean energy transition. This includes collaborating with distribution networks, government agencies, and industry partners to ensure the necessary infrastructure (wires and connections) is in place for a decarbonized transport network.

Charging Infrastructure: Addressing Anxiety

The existing national grid infrastructure, with its proximity to roads and train networks, provides a significant advantage for EV charging point deployment. National Grid Electricity Distribution is already working on innovative projects to install required infrastructure, such as:

• Bringing electricity networks closer to motorway service areas for faster and easier connection.
• Leading projects like the Electric Boulevard (inductive charging) and Electric Nation (V2G charging) to showcase innovative solutions.
• Participating in the Take Charge project, exploring new ways to facilitate rapid EV charging infrastructure growth.

Government Initiatives:

The UK government's Rapid Charging Fund aims to roll out high-powered, open-access charge points across England, while the Local EV Infrastructure Fund supports local authorities in providing charging solutions for residents without off-street parking, including mobile chargers for added flexibility.

While the rise of EVs presents new challenges, the UK is actively preparing its grid and infrastructure to ensure a smooth transition. With gradual adoption, ongoing preparations, and innovative solutions, the answer to the question Will electric vehicles crash the grid? is a resounding yes. The future of clean transportation is bright, and the grid is ready to power it forward.

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