Requests for Proposal launched for purchase of clean electricity in Alberta

Ukraine Wind Energy Resilience shields the grid with wind power along the Black Sea, dispersing turbines to withstand missile attacks, accelerate clean energy transition, aid EU integration, and strengthen energy security and rapid recovery.

Key Points

A strategy in Ukraine using wind farms to harden the grid, ensure clean power, and speed recovery from missile strikes.

✅ Distributed turbines reduce single-point-of-failure risk

✅ Faster repair of substations and lines than power plants

✅ Supports EU-aligned clean energy and grid security goals

The giants catch the wind with their huge arms, helping to keep the lights on in Ukraine — newly built windmills, on plains along the Black Sea.

In 15 months of war, Russia has launched countless missiles and exploding drones at power plants, hydroelectric dams and substations, trying to black out as much of Ukraine as it can, as often as it can, even amid talk of limiting attacks on energy sites that has surfaced, in its campaign to pound the country into submission.

The new Tyligulska wind farm stands only a few dozen miles from Russian artillery, but Ukrainians say it has a crucial advantage over most of the country’s grid, helping stabilize the system even as electricity exports have occasionally resumed under fire.

A single, well-placed missile can damage a power plant severely enough to take it out of action, but Ukrainian officials say that doing the same to a set of windmills — each one tens of meters apart from any other — would require dozens of missiles. A wind farm can be temporarily disabled by striking a transformer substation or transmission lines, but these are much easier to repair than power plants.

“It is our response to Russians,” said Maksym Timchenko, CEO of DTEK Group, the company that built the turbines in the southern Mykolaiv region — the first phase of what is planned as Eastern Europe’s largest wind farm. “It is the most profitable and, as we know now, most secure form of energy.”

Ukraine has had laws in place since 2014 to promote a transition to renewable energy, both to lower dependence on Russian energy imports, with periods when electricity exports resumed to neighbors, and because it was profitable. But that transition still has a long way to go, and the war makes its prospects, like everything else about Ukraine’s future, murky.

In 2020, 12% of Ukraine’s electricity came from renewable sources — barely half the percentage for the European Union. Plans for the Tyligulska project call for 85 turbines producing up to 500 megawatts of electricity. That’s enough for 500,000 apartments — an impressive output for a wind farm, but less than 1% of the country’s prewar generating capacity.

After the Kremlin began its full-scale invasion of Ukraine in February 2022, the need for new power sources became acute, prompting deliveries such as a mobile gas turbine power plant to bolster capacity. Russia has bombarded Ukraine’s power plants and cut off delivery of the natural gas that fueled some of them.

Russian occupation forces have seized a large part of the country’s power supply, and Russia has built power lines to reactivate the Zaporizhzhia plant in occupied territory, ensuring that its output does not reach territory still held by Ukraine. They hold the single largest generator, the 5,700-megawatt Zaporizhzhia Nuclear Power Plant, which has been damaged repeatedly in fighting and has stopped transmitting energy to the grid, with UN inspectors warning of mines at the site during recent visits. They also control 90% of Ukraine’s renewable energy plants, which are concentrated in the southeast.

The postwar recovery plans Ukraine has presented to supporters including the European Union, which it hopes to join, feature a major new commitment to clean energy, even as a controversial proposal on Ukraine’s nuclear plants continues to stir debate.

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Canada Renewable Energy Outlook highlights IEA forecasts of slower capacity growth as Ontario cancels LRP auctions; wind, solar, and hydro expand amid carbon pricing, coal phase-out, Alberta tenders, and falling costs despite natural gas competition.

Key Points

The Canada Renewable Energy Outlook distills IEA projections and policies behind wind, solar, and hydro growth to 2022.

✅ IEA trims Canada renewables growth to 9 GW by 2022

✅ Ontario LRP cuts and Quebec tenders reduce near-term additions

✅ Wind, solar, hydro expand amid carbon pricing and coal phase-out

A new report expects growth in Canadian renewable energy capacity to slow in the next five years compared to earlier projections, a decrease that comes after Ontario scrapped a contentious clean energy program aimed at boosting wind and solar supplies.

The International Energy Agency’s annual outlook for renewable energy, released Wednesday, projects Canada’s renewable capacity to grow by nine gigawatts between 2017 and 2022, down from last year’s report that projected capacity would grow by 13GW.

The influential Paris-based agency said its recent outlook for Canadian renewables was “less optimistic” than its 2016 projection due to “recent changes in auctions schemes in Ontario and Quebec.”

PROGRAM CUTS

In mid-2016 the Ontario government suspended the second phase of its Large Renewable Procurement (LPR) program, axing $3.8 billion in planned renewable energy contracts. And Quebec cancelled tenders for several clean energy projects, which also led the agency to trim its forecasts, the report said.

Ontario cut the LRP program amid anger over rising electricity bills, which critics said was at least partly due to the rapid expansion of wind power supplies across the province.

Experts said the rise in costs was also partly due to major one-time costs to maintain aging infrastructure, particularly the $12.8-billion refurbishment of the Darlington nuclear plant located east of Toronto. The province also has plans to renovate the nearby Pickering nuclear plant in coming years.

The IEA report comes as Ottawa aims to drastically cut carbon emissions, largely by expanding renewable energy capacity. The provinces, including the Prairie provinces, have meanwhile been looking to pare back emissions by phasing out coal and implementing a carbon tax.

While Ontario’s decision to scrap the LRP program is a minor setback in the near-term, analysts say that tightening environmental policy in Canada and elsewhere will regardless continue to drive rapid growth in renewable energy supplies like wind power and solar.

Even the threat of cheap supplies of natural gas, a major competitor to renewable supplies, is unlikely to keep wind and solar supplies off the market, despite lagging solar demand in some regions, as costs continue to fall.

“It’s not just this (Ontario) renewables program, it’s the carbon pricing program, the coal phase out, a whole plethora of programs that are squeezing natural gas margins,” said Dave Sawyer, an economist at EnviroEconomics in Ottawa.

RENEWABLE ENERGY CAPACITY

Canada’s renewable energy capacity is still expected to grow at a robust 10 per cent per year, the report said, and is expected to supply 69 per cent of overall power generation in the country by 2022.

The IEA, however, expects the growth in hydro power capacity to “slow significantly” beyond 2022, after a raft of new hydro projects come online.

Canadian hydro power capacity is projected to grow 2.2GW in the next five years, mostly due to the commissioning of the Keeyask plant in Manitoba the Muskrat Falls dam in Newfoundland and Labrador and the Romaine 3 and 4 stations in Quebec, in a sector where Canada ranks in the top 10 for hydropower jobs nationwide.

Solar capacity in Canada is expected to grow by 2GW to 4.7GW in 2022, approaching the 5 GW milestone in the near term, mostly due to feed-in-tariff programs in Ontario and renewable energy tenders currently underway in Alberta.

Globally, China and India lead renewable capacity growth projections. China alone is expected to be responsible for 40 per cent of renewable capacity growth in the next five years, while India will double its renewable electricity capacity by 2022. The world is collectively expected to grow renewable electricity capacity by 43 per cent between 2017 and 2022.

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Electrified Trucking Grid Integration explores vehicle-to-grid (V2G) strategies where rolling batteries backfeed power during peak demand, optimizing charging infrastructure, time-of-use pricing, and IESO market operations for Ontario shippers like Nature Fresh Farms.

Key Points

An approach using V2G-enabled electric trucks to support the grid, cut peak costs, and add revenue streams.

✅ Models charging sites, timing, and local grid impacts.

✅ Evaluates V2G backfeed economics and IESO pricing.

✅ Uses Nature Fresh Farms data for logistics and energy.

A University of Windsor project will study whether an electrified trucking industry might not only deliver the goods, but help keep the lights on with the timely off-loading of excess electrons from their powerful batteries via vehicle-to-grid approaches now emerging.

The two-year study is being overseen by Environmental Energy Institute director Rupp Carriveau and associate professor Hanna Moah of the Cross-Border Institute in conjunction with the Leamington-based greenhouse grower Nature Fresh Farms.

“The study will look at what happens if we electrified the transport truck fleet in Ontario to different degrees, considering the power demand for truck fleets that would result,” Carriveau said.

“Where trucks would be charging and how that will affect the electricity grid grid coordination in those locations at specific times. We’ll be able to identify peak times on the demand side.

“On the other side, we have to recognize these are rolling batteries. They may be able to backfeed the grid, sell electricity back to prop the grid up in locations it wasn’t able to in the past.”

The national research organization Mathematics of International Technology and Complex Systems (Mitacs) is funding the $160,000 study, and the Independent Electricity Systems Operator, a Crown corporation responsible for operating Ontario’s electricity market, amid an electricity supply crunch that is boosting storage efforts, is also offering support for the project.

Because of the varying electricity prices in the province based on usage, peak demand and even time of year, Carriveau said there could be times where draining off excess truck battery power will be cheaper than the grid, and vehicle-to-building charging models show how those savings can be realized.

“It could offer the truck owner another revenue stream from his asset, and businesses a cheaper electricity alternative in certain circumstances,” he said.

The local greenhouse industry was a natural fit for the study, said Carriveau, based on the amount of work the university does with the sector along with the fact it is both a large consumer and producer of electricity.

The study will be based on assumptions for electric truck capacity and performance because the low number of such vehicles currently on the road, though large electric bus fleets offer operational insights.

How will an electrified trucking industry affect Ontario’s electricity grid? University of Windsor engineering professor Rupp Carriveau is part of a new study on trucks being used to help deliver electricity as well as their products around Ontario. He is shown on campus on Tuesday, July 6, 2021.

How will an electrified trucking industry affect Ontario’s electricity grid? University of Windsor engineering professor Rupp Carriveau is part of a new study on trucks being used to help deliver electricity as well as their products around Ontario. He is shown on campus on Tuesday, July 6, 2021.

Nature Fresh Farms will supply all its data on power use, logistics, utility costs and shipping schedules to determine if switching to an electrified fleet makes sense for the company.

“As an innovative company, we are always thinking, ‘What is next?’, whether its developments in product varieties, technology or sustainability,” said company CEO Peter Quiring. “Green transportation is the next big focus.

“We were given the opportunity to work closely on this project and offer our operations as a case study to see how we can find feasible alternatives, not only for Nature Fresh Farms or even for companies in agriculture, but for every industry that relies on the transportation of their goods.”

Currently, Nature Fresh Farms doesn’t have any electrified trucks. Carriveau said the second phase of the study might actually involve an electric truck in a pilot project.

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CAISO Renewable Curtailments reflect grid balancing under transmission congestion and oversupply, reducing solar and wind output while leveraging WEIM trading, battery storage, and transmission expansion to integrate renewables and stabilize demand-supply.

Key Points

CAISO renewable curtailments are reductions in wind and solar output to balance grid amid congestion or oversupply.

✅ Driven mainly by transmission congestion, less by oversupply.

✅ Peaks in spring when demand is low and solar output is high.

✅ Mitigated by WEIM trades, new lines, and battery storage growth.

The California Independent System Operator (CAISO), the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation, as reported in rising curtailments, as it balances supply and demand during the rapid growth of wind and solar power in California.

Grid operators must balance supply and demand to maintain a stable electric system as advances in solar and wind continue to scale. The output of wind and solar generators are reduced either through price signals or rarely, through an order to reduce output, during periods of:

Congestion, when power lines don’t have enough capacity to deliver available energy
Oversupply, when generation exceeds customer electricity demand

In CAISO, curtailment is largely a result of congestion. Congestion-related curtailments have increased significantly since 2019 because California's solar boom has been outpacing upgrades in transmission capacity.

In 2022, CAISO curtailed 2.4 million megawatthours (MWh) of utility-scale wind and solar output, a 63% increase from the amount of electricity curtailed in 2021. As of September, CAISO has curtailed more than 2.3 million MWh of wind and solar output so far this year, even as the US project pipeline is dominated by wind, solar, and batteries.

Solar accounts for almost all of the energy curtailed in CAISO—95% in 2022 and 94% in the first seven months of 2023. CAISO tends to curtail the most solar in the spring when electricity demand is relatively low (because moderate spring temperatures mean less demand for space heating or air conditioning) and solar output is relatively high, although wildfire smoke impacts can reduce available generation during fire season as well.

CAISO has increasingly curtailed renewable generation as renewable capacity has grown in California, and the state has even experienced a near-100% renewables moment on the grid in recent years. In 2014, a combined 9.0 gigawatts (GW) of wind and solar capacity had been built in California. As of July 2023, that number had grown to 17.6 GW. Developers plan to add another 3.0 GW by the end of 2024.

CAISO is exploring and implementing various solutions to its increasing curtailment of renewables, including:

The Western Energy Imbalance Market (WEIM) is a real-time market that allows participants outside of CAISO to buy and sell energy to balance demand and supply. In 2022, more than 10% of total possible curtailments were avoided by trading within the WEIM. A day ahead market is expected to be operational in Spring 2025.

CAISO is expanding transmission capacity to reduce congestion. CAISO’s 2022–23 Transmission Planning Process includes 45 transmission projects to accommodate load growth and a larger share of generation from renewable energy sources.

CAISO is promoting the development of flexible resources that can quickly respond to sudden increases and decreases in demand such as battery storage technologies that are rapidly becoming more affordable. California has 4.9 GW of battery storage, and developers plan to add another 7.6 GW by the end of 2024, according to our survey of recent and planned capacity changes. Renewable generators can charge these batteries with electricity that would otherwise have been curtailed.

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American Wind Power Statement on Biden highlights collaboration on renewable energy policy, clean energy jobs, carbon-free power, climate action, and a modern grid to grow the economy while keeping electricity costs low.

Key Points

AWEA commits to work with Biden on renewable policy, clean energy jobs, and a carbon-free U.S. grid.

✅ AWEA cites over 120,000 U.S. wind jobs ready to scale

✅ Supports 100% carbon-free power target by mid-century

✅ Aims to keep electricity costs low with renewable policy

American wind power congratulates President-elect Biden on his victory. "We look forward to collaborating with his administration and Congress, after pledges to scrap offshore wind in recent years, as we work together to shape a cleaner and more prosperous energy future for America, where wind and solar surpass coal in generation across the country.

The President-elect and his team have laid out an ambitious, comprehensive approach to energy policy that recognizes renewable energy's ability to grow America's economy and create a cleaner environment, as market majority for clean energy becomes a realistic prospect, while keeping electricity costs low and combating the threat of climate change as wind power surges across many regions.

The U.S. wind sector and its growing workforce of over 120,000 Americans stand ready to help put that plan into action and support the Biden administration in delivering on the immense promise of renewable energy to add well-paying jobs to the U.S. economy, with quarter-million wind jobs forecast in coming years, and reach the President-elect's 100% target for a carbon-free America by the middle of this century, alongside a 100% clean electricity by 2035 goal that charts the near-term path." - Tom Kiernan, CEO of the American Wind Energy Association.

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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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