When you think of utility-scale renewable energy, images of wind turbines or solar panels are probably the first to enter your mind. Terry Meikle has other ideas.
He envisions piles of sawdust and woodchips as Colorado Springs' next clean energy source.
Living at the foot of Pikes Peak and near hundreds of square miles of aging pine forest, Meikle sees an abundant fuel source. And he has reason to be optimistic about the potential of wood. Since 2006, he's lead the effort to research and test woody biomass successfully as a power source for Colorado Springs.
"Biomass for electric generation is an awesome project. It's the right thing to be doing for the community, for the environment," says Meikle. "There is a 20 year supply of woody biomass from dead or dying trees within a 75 mile radius of the Martin Drake Power Plant."
"The older trees in Colorado's forests are susceptible to pine beetle kill," continued Meikle. "By removing the dead trees in a systematic way, we'll help reduce the risk of fire and make the forest healthier."
Before wood chips can be burned in the Drake plant, which is located near downtown Colorado Springs, they must be ground to less than a quarter-inch size. Meikle and his team have completed a preliminary design for a biomass receiving, storage, processing and injection system for unit 7 at the plant. Bid specifications are being developed to construct a receiving hopper, conveyor system, storage silo, grinding system and injection system by 2011.
Springs Utilities will contract with a biomass management company to deliver wood fuels to the plant. The primary woody biomass source will be from forest products, urban wood waste, pallets and sawdust. Pellets from wood, waste agriculture products and paper are also being investigated and considered in the co-firing system design.
The available wood supply will be enough to continuously blend 15 percent biomass with 85 percent coal. Meikle expects that biomass will replace 75,000 tons of coal a year starting in 2011. Three percent of Springs Utilities' total electric output is projected to be from woody biomass. Colorado Springs Utilities provides electricity to more than 200,000 customers.
The Drake Power Plant is capable of burning coal and natural gas. With the addition of biomass, Drake will be one of the few power plants in the nation that can burn three different types of fuel. "A more diverse fuel mix will increase our reliability and lower our costs if we have supply or delivery issues with coal or natural gas," says Meikle.
Transportation is the largest expense for any woody biomass project. Most of the forest product is expected to be delivered via truck. Rail delivery is also being investigated.
The biomass receiving, storage, processing and injection system at the Drake plant will cost an estimated $10 million. Meikle is hoping that a good portion of the project will be financed through renewable energy grants. Springs Utilities has already been awarded a $250,000 Woody Biomass Utilization grant from Federal Stimulus funds. An application for a $5 million grant from the Department of Energy has been submitted.
With an approved woody biomass permit from the State of Colorado in hand, Springs Utilities will begin burning a sawdust/coal blend this month. Because it's already in very small pieces, sawdust can be burned at the Drake plant without being pulverized. Meikle plans to burn sawdust until the long-term forest product facility is completed in 2011.
The sawdust comes from area manufacturers, such as furniture makers, who historically have paid to haul and dump the byproduct to the landfill. Local materials manager, Rocky Top Resources, was recently contracted to collect, screen and deliver the material to the power plant. Springs Utilities will receive and burn most of the local sawdust supply, estimated at 25 tons a week. The volume is enough to support a blend of 1 percent sawdust to 99 percent coal.
"We're putting to beneficial use a product that has been wasted and put in landfills," said Meikle, "Sawdust is a local product, as opposed to fuels shipped in from hundreds of miles away."
Meikle and others at Springs Utilities have been working with several local agencies to make woody biomass a reality, including: the Bureau of Land Management, National Forest Service, private contractors, the Governor's Energy Office, congressional leaders, the City of Colorado Springs, Woodland Park and other local governments.
Springs Utilities is a founding member of the Woodland Park Healthy Forest Initiative. The goal of the initiative is to reduce forest conditions that can lead to catastrophic fires, weather events, insects, and disease conditions. Efficient use of biomass will support a more diverse and healthy forest.
"As a community-owned utility, we're committed to protecting the beauty of the Pikes Peak region," says Jerry Forte, Colorado Springs Utilities chief executive officer. "Woody biomass is a natural for us here in Colorado. It's a low-cost, renewable energy source and will keep our forests healthy at the same time."
Environmental benefits of woody biomass:
• Less emissions (sulfur dioxides, nitrogen oxide, mercury and particulates) than coal.
• Woody biomass is carbon neutral. If not burned, wood releases carbon dioxide as it decomposes.
• Less ash is produced compared to coal, reducing landfill.
• Promotes healthy forests and reduces the risk of devastating fires.
• As a local product, the fuel does not have to be transported as far as coal sources.
• Provides a beneficial use for material that has been considered a detriment and taken to the landfill.
Economic benefits of local woody biomass:
• Uses existing power plants and electric transmission lines.
• One of the least-expensive forms of renewable energy. The delivered cost is much less than the cost of delivered wind and solar.
• Benefits the local economy by generating jobs in the collection and transporting of forest and other wood products.
• Provides a more diverse fuel mix, which can mitigate fluctuations in coal and natural gas costs.
Colorado Springs Utilities is one of the nation's largest four-service municipally-owned utilities, providing electric, natural gas, water and wastewater services more than 500,000 people in the Pikes Peak region.
Boeing 787 More-Electric Architecture replaces pneumatics with bleedless pressurization, VFSG starter-generators, electric brakes, and heated wing anti-ice, leveraging APU, RAT, batteries, and airport ground power for efficient, redundant electrical power distribution.
Key Points
An integrated, bleedless electrical system powering start, pressurization, brakes, and anti-ice via VFSGs, APU and RAT.
✅ VFSGs start engines, then generate 235Vac variable-frequency power
✅ Bleedless pressurization, electric anti-ice improve fuel efficiency
✅ Electric brakes cut hydraulic weight and simplify maintenance
The 787 Dreamliner is different to most commercial aircraft flying the skies today. On the surface it may seem pretty similar to the likes of the 777 and A350, but get under the skin and it’s a whole different aircraft.
When Boeing designed the 787, in order to make it as fuel efficient as possible, it had to completely shake up the way some of the normal aircraft systems operated. Traditionally, systems such as the pressurization, engine start and wing anti-ice were powered by pneumatics. The wheel brakes were powered by the hydraulics. These essential systems required a lot of physical architecture and with that comes weight and maintenance. This got engineers thinking.
What if the brakes didn’t need the hydraulics? What if the engines could be started without the pneumatic system? What if the pressurisation system didn’t need bleed air from the engines? Imagine if all these systems could be powered electrically… so that’s what they did.
Power sources
The 787 uses a lot of electricity. Therefore, to keep up with the demand, it has a number of sources of power, much as grid operators track supply on the GB energy dashboard to balance loads. Depending on whether the aircraft is on the ground with its engines off or in the air with both engines running, different combinations of the power sources are used.
Engine starter/generators
The main source of power comes from four 235Vac variable frequency engine starter/generators (VFSGs). There are two of these in each engine. These function as electrically powered starter motors for the engine start, and once the engine is running, then act as engine driven generators.
The generators in the left engine are designated as L1 and L2, the two in the right engine are R1 and R2. They are connected to their respective engine gearbox to generate electrical power directly proportional to the engine speed. With the engines running, the generators provide electrical power to all the aircraft systems.
APU starter/generators
In the tail of most commercial aircraft sits a small engine, the Auxiliary Power Unit (APU). While this does not provide any power for aircraft propulsion, it does provide electrics for when the engines are not running.
The APU of the 787 has the same generators as each of the engines — two 235Vac VFSGs, designated L and R. They act as starter motors to get the APU going and once running, then act as generators. The power generated is once again directly proportional to the APU speed.
The APU not only provides power to the aircraft on the ground when the engines are switched off, but it can also provide power in flight should there be a problem with one of the engine generators.
Battery power
The aircraft has one main battery and one APU battery. The latter is quite basic, providing power to start the APU and for some of the external aircraft lighting.
The main battery is there to power the aircraft up when everything has been switched off and also in cases of extreme electrical failure in flight, and in the grid context, alternatives such as gravity power storage are being explored for long-duration resilience. It provides power to start the APU, acts as a back-up for the brakes and also feeds the captain’s flight instruments until the Ram Air Turbine deploys.
Ram air turbine (RAT) generator
When you need this, you’re really not having a great day. The RAT is a small propeller which automatically drops out of the underside of the aircraft in the event of a double engine failure (or when all three hydraulics system pressures are low). It can also be deployed manually by pressing a switch in the flight deck.
Once deployed into the airflow, the RAT spins up and turns the RAT generator. This provides enough electrical power to operate the captain’s flight instruments and other essentials items for communication, navigation and flight controls.
External power
Using the APU on the ground for electrics is fine, but they do tend to be quite noisy. Not great for airports wishing to keep their noise footprint down. To enable aircraft to be powered without the APU, most big airports will have a ground power system drawing from national grids, including output from facilities such as Barakah Unit 1 as part of the mix. Large cables from the airport power supply connect 115Vac to the aircraft and allow pilots to shut down the APU. This not only keeps the noise down but also saves on the fuel which the APU would use.
The 787 has three external power inputs — two at the front and one at the rear. The forward system is used to power systems required for ground operations such as lighting, cargo door operation and some cabin systems. If only one forward power source is connected, only very limited functions will be available.
The aft external power is only used when the ground power is required for engine start.
Circuit breakers
Most flight decks you visit will have the back wall covered in circuit breakers — CBs. If there is a problem with a system, the circuit breaker may “pop” to preserve the aircraft electrical system. If a particular system is not working, part of the engineers procedure may require them to pull and “collar” a CB — placing a small ring around the CB to stop it from being pushed back in. However, on the 787 there are no physical circuit breakers. You’ve guessed it, they’re electric.
Within the Multi Function Display screen is the Circuit Breaker Indication and Control (CBIC). From here, engineers and pilots are able to access all the “CBs” which would normally be on the back wall of the flight deck. If an operational procedure requires it, engineers are able to electrically pull and collar a CB giving the same result as a conventional CB.
Not only does this mean that the there are no physical CBs which may need replacing, it also creates space behind the flight deck which can be utilised for the galley area and cabin.
A normal flight
While it’s useful to have all these systems, they are never all used at the same time, and, as the power sector’s COVID-19 mitigation strategies showed, resilience planning matters across operations. Depending on the stage of the flight, different power sources will be used, sometimes in conjunction with others, to supply the required power.
On the ground
When we arrive at the aircraft, more often than not the aircraft is plugged into the external power with the APU off. Electricity is the blood of the 787 and it doesn’t like to be without a good supply constantly pumping through its system, and, as seen in NYC electric rhythms during COVID-19, demand patterns can shift quickly. Ground staff will connect two forward external power sources, as this enables us to operate the maximum number of systems as we prepare the aircraft for departure.
Whilst connected to the external source, there is not enough power to run the air conditioning system. As a result, whilst the APU is off, air conditioning is provided by Preconditioned Air (PCA) units on the ground. These connect to the aircraft by a pipe and pump cool air into the cabin to keep the temperature at a comfortable level.
APU start
As we near departure time, we need to start making some changes to the configuration of the electrical system. Before we can push back , the external power needs to be disconnected — the airports don’t take too kindly to us taking their cables with us — and since that supply ultimately comes from the grid, projects like the Bruce Power upgrade increase available capacity during peaks, but we need to generate our own power before we start the engines so to do this, we use the APU.
The APU, like any engine, takes a little time to start up, around 90 seconds or so. If you remember from before, the external power only supplies 115Vac whereas the two VFSGs in the APU each provide 235Vac. As a result, as soon as the APU is running, it automatically takes over the running of the electrical systems. The ground staff are then clear to disconnect the ground power.
If you read my article on how the 787 is pressurised, you’ll know that it’s powered by the electrical system. As soon as the APU is supplying the electricity, there is enough power to run the aircraft air conditioning. The PCA can then be removed.
Engine start
Once all doors and hatches are closed, external cables and pipes have been removed and the APU is running, we’re ready to push back from the gate and start our engines. Both engines are normally started at the same time, unless the outside air temperature is below 5°C.
On other aircraft types, the engines require high pressure air from the APU to turn the starter in the engine. This requires a lot of power from the APU and is also quite noisy. On the 787, the engine start is entirely electrical.
Power is drawn from the APU and feeds the VFSGs in the engines. If you remember from earlier, these fist act as starter motors. The starter motor starts the turn the turbines in the middle of the engine. These in turn start to turn the forward stages of the engine. Once there is enough airflow through the engine, and the fuel is igniting, there is enough energy to continue running itself.
After start
Once the engine is running, the VFSGs stop acting as starter motors and revert to acting as generators. As these generators are the preferred power source, they automatically take over the running of the electrical systems from the APU, which can then be switched off. The aircraft is now in the desired configuration for flight, with the 4 VFSGs in both engines providing all the power the aircraft needs.
As the aircraft moves away towards the runway, another electrically powered system is used — the brakes. On other aircraft types, the brakes are powered by the hydraulics system. This requires extra pipe work and the associated weight that goes with that. Hydraulically powered brake units can also be time consuming to replace.
By having electric brakes, the 787 is able to reduce the weight of the hydraulics system and it also makes it easier to change brake units. “Plug in and play” brakes are far quicker to change, keeping maintenance costs down and reducing flight delays.
In-flight
Another system which is powered electrically on the 787 is the anti-ice system. As aircraft fly though clouds in cold temperatures, ice can build up along the leading edge of the wing. As this reduces the efficiency of the the wing, we need to get rid of this.
Other aircraft types use hot air from the engines to melt it. On the 787, we have electrically powered pads along the leading edge which heat up to melt the ice.
Not only does this keep more power in the engines, but it also reduces the drag created as the hot air leaves the structure of the wing. A double win for fuel savings.
Once on the ground at the destination, it’s time to start thinking about the electrical configuration again. As we make our way to the gate, we start the APU in preparation for the engine shut down. However, because the engine generators have a high priority than the APU generators, the APU does not automatically take over. Instead, an indication on the EICAS shows APU RUNNING, to inform us that the APU is ready to take the electrical load.
Shutdown
With the park brake set, it’s time to shut the engines down. A final check that the APU is indeed running is made before moving the engine control switches to shut off. Plunging the cabin into darkness isn’t a smooth move. As the engines are shut down, the APU automatically takes over the power supply for the aircraft. Once the ground staff have connected the external power, we then have the option to also shut down the APU.
However, before doing this, we consider the cabin environment. If there is no PCA available and it’s hot outside, without the APU the cabin temperature will rise pretty quickly. In situations like this we’ll wait until all the passengers are off the aircraft until we shut down the APU.
Once on external power, the full flight cycle is complete. The aircraft can now be cleaned and catered, ready for the next crew to take over.
Bottom line
Electricity is a fundamental part of operating the 787. Even when there are no passengers on board, some power is required to keep the systems running, ready for the arrival of the next crew. As we prepare the aircraft for departure and start the engines, various methods of powering the aircraft are used.
The aircraft has six electrical generators, of which only four are used in normal flights. Should one fail, there are back-ups available. Should these back-ups fail, there are back-ups for the back-ups in the form of the battery. Should this back-up fail, there is yet another layer of contingency in the form of the RAT. A highly unlikely event.
The 787 was built around improving efficiency and lowering carbon emissions whilst ensuring unrivalled levels safety, and, in the wider energy landscape, perspectives like nuclear beyond electricity highlight complementary paths to decarbonization — a mission it’s able to achieve on hundreds of flights every single day.
Manitoba Hydro Rate Increase sets electricity rates up 2.5% annually for three years via Bill 35, bypassing PUB hearings, citing Crown utility debt and pandemic impacts, with legislature debate and a multi-year regulatory review ahead.
Key Points
A government plan to lift electricity rates 2.5% annually over three years via Bill 35, bypassing PUB hearings.
✅ 2.5% annual hikes for three years set in legislation
✅ Bypasses PUB rate hearings during pandemic recovery
The Manitoba government is planning to raise electricity rates, with Manitoba Hydro scaling back next year, by 2.5 per cent a year over the next three years.
Finance Minister Scott Fielding says the increases, to be presented in a bill before the legislature, are the lowest in a decade and will help keep rates among the lowest in Canada, even as SaskPower's 8% hike draws scrutiny in a neighbouring province.
Crown-owned Manitoba Hydro had asked for a 3.5 per cent increase this year, similar to BC Hydro's 3% rise, to help pay off billions of dollars in debt.
“The way we figured this out, we looked at the rate increases that were approved by PUB (Public Utilities Board) over the last ten years, (and) we went to 75 per cent of that,” Fielding said during a Thursday morning press conference.
“It’s a pandemic, we know that there’s a lot of people that are unemployed, that are struggling, we know that businesses need to recharge after the business (sic), so this will provide them an appropriate break.”
Electricity rates are normally set by the Public Utilities Board, a regulatory body that holds rate hearings and examines the Crown corporation’s finances.
The Progressive Conservative government has temporarily suspended the regulatory process and has set rates itself, while Ontario rate legislation to lower rates moved forward in its jurisdiction.
Manitoba Liberal leader Dougald Lamont was quick to condemn the move, noting parallels to Ontario price concerns before saying in a news release the PCs “are abusing their power and putting Hydro’s financial future at risk by fixing prices in the hope of buying some political popularity.”
“Hydro’s rates should be set by the PUB after public hearings, not figured out on the back of a napkin in the Premier’s office,” Lamont wrote.
Fielding noted the increase would appear as an amendment to Bill 35, which will appear in the legislature this fall, as BC Hydro plans multi-year increases proceed elsewhere.
“All members of the legislative assembly will vote and debate this rate increase on Bill 35,” Fielding said.
“This will give the PUB time to implement reforms, and allow the utilities to prepare a more rigorous, multi-year review application process.”
ABO Wind Tunisia 10MW Solar Project will build a photovoltaic park in Gabes with a STEG PPA, fixed tariff, 2,500 m grid connection, producing 18 million kWh annually, targeted for 2020 commissioning with local partners.
Key Points
A 10MW photovoltaic park in Gabes with a 20-year STEG PPA and fixed tariff, slated for 2020 commissioning.
✅ 18 million kWh/year; 2,500 m grid tie, 20-year fixed tariff
✅ Electricity supplied to STEG under PPA; 2020 commissioning
✅ Located in Gabes; built with local partners, 10MW capacity
ABO Wind has received a permit and a tariff for a 10MW photovoltaic project in Tunisia, amid global activity such as Spain's 90MW wind project now underway, which it plans to build and commission in 2020.
The solar park, in the governorate of Gabes, is 400km south of the country’s capital Tunis and aligns with renewable funding initiatives seen across developing markets.
The developer said it plans to build the project next year in close cooperation with local partners, as regional markets from North Africa to the Gulf expand, with Saudi Arabia boosting wind capacity as well.
ABO Wind department head Nicolas Konig said: “The solar park will produce more than 18 million kilowatt hours of electricity per year and will feed it into the grid at a distance of 2500 metres.”
The developer will conclude an electricity supply contract with the state-owned energy supplier (Societe tunisienne de l’electricite et du gaz (STEG), which will provide a fixed remuneration over 20 years, a model echoed by Germany's wind-solar tender for the electricity fed into the grid.
Earlier this year, ABO Wind had already secured a tariff for a wind farm with a capacity of 30MW in a tender, 35km south-east of Tunis, underscoring Tunisia's wind investments under its long-term plan.
The company is working on half a dozen Tunisian wind and solar projects, as institutions like the World Bank support wind growth in developing countries.
“We are making good progress on our way to assemble a portfolio of several ready-to-build wind and solar projects attractive to investors, as Saudi clean energy targets continue to expand globally,” said ABO Wind general manager responsible for international business development Patrik Fischer.
Ontario Hydro Disconnection Ban ends May 1, prompting utilities and Hydro One to push payment plans, address arrears, and link low-income assistance, as Sudbury officials urge customers to avoid spring electricity disconnections.
Key Points
A seasonal policy halting winter shutoffs in Ontario, ending May 1 as utilities emphasize payment plans and assistance.
✅ Disconnections resume after winter moratorium ends May 1.
✅ Hydro One delays shutoffs until June 1; arrears down 60%.
The first of May has taken on new meaning this year in Ontario.
It's when the province's ban on hydro disconnections during the winter months comes to an end, even as Ontario considers extending moratoriums in some cases.
Wendy Watson, the director of communications at Greater Sudbury Utilities, says signs of the approaching deadline could be seen in their office of the past few weeks.
"We've had quite an active stream of people into our front office to catch up on their accounts and also we've had a lot of people calling us to make payment arrangements or pay their bill or deal with their arrears," she says.
#google#
Watson says there are 590 customers in Sudbury who could face possible disconnection this spring, compared with just 60 when the ban started in November.
"They will put off until tomorrow what they can avoid today," she says.
Watson says they are hoping to work with customers to figure payment plans with more choice and flexibility and avoid the need to cut power to certain homes and businesses.
"As we like to say we're in the distribution of energy business, not the disconnection of energy business. We want you to be able to turn the lights on," she says.
Joseph Leblanc from the Social Planning Council of Sudbury says the winter hydro disconnection ban is one of several government measures that keep low income families on the brink of disaster. (CBC)
Hydro One executive vice-president of customer care Ferio Pugilese, whose utility later extended disconnection bans across its service area, tells a different story.
He says the company has worked hard to configure payment plans for customers over the last three years amid unchanged peak-rate policies and find ways for them to pay "that fit their lifestyle."
"The threat of a disconnection is not on its own something that's going to motivate someone to pay their bills," says Pugilese.
He says Hydro One is also sending out notices this spring, but won't begin cutting anyone off until June 1st.
He says that disconnections and the amount owing from outstanding bills to Hydro One are down 60 per cent in the last year.
Ontario Energy Minister Glenn Thibeault says there is plenty of help from government programs and utility financing options like Hydro One's relief fund for those having trouble paying their power bills. (CBC)
Sudbury MPP and Energy Minister Glenn Thibeault says his hope is that people having trouble paying their power bills will talk to their hydro utility and look at the numerous programs the government offers to help low-income citizens.
"You know, I really want every customer to have a conversation with their local utility about getting back on track and we do have those programs in place," he says.
However, Joseph Leblanc, the executive director of the Social Planning Council of Sudbury, says the winter disconnection ban is just another government policy that keeps the poor on the brink of disaster.
"It's a feel good story for the government to say that, but it's a band-aid solution. We can stop the bleeding for a little while, make sure people aren't freezing to death in Ontario," he says.
"People choose between rent, hydro, medicine, food, and there's an option for one of those to take some pressure off for a little while."
Instead, Leblanc would like to see the government fast track the province-wide implementation of the basic income program it's testing out in a few cities.
California Grid Transition drives decarbonization with renewable energy, EV charging, microgrids, and energy storage, while tackling wildfire risk, aging infrastructure, and cybersecurity threats to build grid resilience and reliability across a rapidly electrifying economy.
Key Points
California Grid Transition is the statewide shift to renewables, storage, EVs, and resilient, secure infrastructure.
✅ Integrates solar, wind, storage, and demand response at scale
✅ Expands microgrids and DERs to enhance reliability and resilience
✅ Addresses wildfire, aging assets, and cybersecurity risks
Gretchen Bakke thinks a lot about power—the kind that sizzles through a complex grid of electrical stations, poles, lines and transformers, keeping the lights on for tens of millions of Californians who mostly take it for granted.
They shouldn’t, says Bakke, who grew up in a rural California town regularly darkened by outages. A cultural anthropologist who studies the consequences of institutional failures, she says it’s unclear whether the state’s aging electricity network and its managers can handle what’s about to hit it, as U.S. blackout risks continue to mount.
California is casting off fossil fuels to become something that doesn’t yet exist: a fully electrified state of 40 million people. Policies are in place requiring a rush of energy from renewable sources such as the sun and wind and calling for millions of electric cars that will need charging—changes that will tax a system already fragile, unstable and increasingly vulnerable to outside forces.
“There is so much happening, so fast—the grid and nearly everything about energy is in real transition, and there’s so much at stake,” said Bakke, who explores these issues in a book titled simply, “The Grid.”
The state’s task grew more complicated with this week’s announcement that Pacific Gas and Electric, which provides electricity for more than 5 million customer accounts, intends to file for bankruptcy in the face of potentially crippling liabilities from wildfires. But the reshaping of California’s energy future goes far beyond the woes of a single company.
The 19th-century model of one-way power delivery from utility companies to customers is being reimagined. Major utilities—and the grid itself—are being disrupted by rooftops paved with solar panels and the rise of self-sufficient neighborhood mini-grids. Whole cities and counties are abandoning big utilities and buying power from wholesalers and others of their choosing.
With California at the forefront of a new energy landscape, officials are racing to design a future that will not just reshape power production and delivery but also dictate how we get around and how our goods are made. They’re debating how to manage grid defectors, weighing the feasibility of an energy network that would expand to connect and serve much of the West and pondering how to appropriately regulate small power producers.
“We are in the depths of the conversation,” said Michael Picker, president of the state Public Utilities Commission, who cautions that even as the system is being rebooted, like repairing a car while driving in practice, there’s no real plan for making it all work.
Such transformation is exceedingly risky and potentially costly. California still bears the scars of having dropped its regulatory reins some 20 years ago, leaving power companies to bilk the state of billions of dollars it has yet to completely recover. And utility companies will undoubtedly pass on to their customers the costs of grid upgrades to defend against natural and man-made threats.
Some weaknesses are well known—rodents and tree limbs, for example, are common culprits in power outages, even as longer, more frequent outages afflict other parts of the U.S. A gnawing squirrel squeezed into a transformer on Thanksgiving Day three years ago, shutting off power to parts of Los Angeles International Airport. The airport plans to spend $120 million to upgrade its power plant.
But the harsh effects of climate change expose new vulnerabilities. Rising seas imperil coastal power plants. Electricity infrastructure is both threatened by and implicated in wildfires. Picker estimates that utility operations are related to one in 10 wildland fires in California, which can be sparked by aging equipment and winds that send tree branches crashing into power lines, showering flammable landscapes with sparks.
California utilities have been ordered to make their lines and equipment more fire-resistant as they’re increasingly held accountable for blazes they cause. Pacific Gas and Electric reported problems with some of its equipment at a starting point of California’s deadliest wildfire, which killed at least 86 people in November in the town of Paradise. The cause of the fire is under investigation.
New and complex cyber threats are more difficult to anticipate and even more dangerous. Computer hackers, operating a world away, can—and have—shut down electricity systems, toggling power on and off at will, and even hijacked the computers of special teams dispatched to restore control.
Thomas Fanning, CEO of Southern Co., one of the country’s largest utilities, recently disclosed that his teams have fended off multiple attempts to hack a nuclear power plant the firm operates. He called grid hacking “the most important under-reported war in American history.”
However, if you’ve got what seems like an insoluble problem requiring a to-the-studs teardown and innovative rebuild, California is a good place to start. After all, the first electricity grid was built in San Francisco in 1879, three years before Thomas Edison’s power station in New York City. (Edison’s plant burned to the ground a decade later.)
California’s energy-efficiency regulations have helped reduce statewide energy use, which peaked a decade ago and is on the decline, somewhat easing pressure on the grid. The major utilities are ahead of schedule in meeting their obligation to obtain power from renewable sources.
California’s universities are teaming with national research labs to develop cutting-edge solutions for storing energy produced by clean sources. California is fortunate in the diversity of its energy choices: hydroelectric dams in the north, large-scale solar operations in the Mojave Desert to the east, sprawling windmill farms in mountain passes and heat bubbling in the Geysers, the world’s largest geothermal field north of San Francisco. A single nuclear-power plant clings to the coast near San Luis Obispo, but it will be shuttered in 2025.
But more renewable energy, accessible at the whims of weather, can throw the grid off balance. Renewables lack the characteristic that power planners most prize: dispatchability, ready when called on and turned off when not immediately needed. Wind and sun don’t behave that way; their power is often available in great hunks—or not at all, as when clouds cover solar panels or winds drop.
In the case of solar power, it is plentiful in the middle of the day, at a time of low demand. There’s so much in California that most days the state pays its neighbors to siphon some off, lest the excess impede the grid’s constant need for balance—for a supply that consistently equals demand.
So getting to California’s new goals of operating on 100 percent clean energy by 2045 and having 5 million electric vehicles within 12 years will require a shift in how power is acquired and managed. Consumers will rely more heavily on battery storage, whose efficiency must improve to meet that demand.
Ontario Electricity Bill Scams: beware phishing, spoofed calls, fake invoices, and disconnection threats demanding prepaid cards, gift cards, or Bitcoin; verify with Hydro One, Alectra, Toronto Hydro, Elexicon, or Hydro Ottawa customer service.
Key Points
Fraud schemes impersonating utilities via calls, texts, emails, or fake bills to coerce instant payment with threats.
✅ Never pay by gift cards, prepaid debit, or Bitcoin.
✅ Do not call numbers in messages; use your bill or utility website.
✅ Verify IDs; report threats or door-to-door demands to police.
Ontario’s five largest electricity utilities have teamed up to warn the public about ongoing scams concerning fake phone calls, texts and bills connected to the utility accounts.
“We always receive these reports of scams and it gets increasingly higher during the holidays when people are busy and enjoying the season," said Whitney Brhelle, spokesperson with Hydro One.
Hydro One joined with Alectra Utilities, Elexicon Energy, Hydro Ottawa and Toronto Hydro to get the message out that scammers are targeting customers and threatening to turn off their power.
Scams involve impersonation of a local utility or its employees, threatening phone calls, texts or emails and pressure for immediate payment that come with threats to disconnect service the same day.
Criminals may demand payment in prepaid debit cards, gift cards or Bitcoin. Utilities said they would never call a customer without notice and threaten disconnection over the phone.
In a separate case, authorities in Montreal arrested suspects in an electricity theft ring that highlights broader energy-related crime.
“People have been calling customers and saying you need to pay your bill immediately and they are threatened with disconnection, often citing supposed changes to peak hydro rates to add pressure, which is something that we would ever do," said Kimberly Brathwaite, spokesperson with Elexicon Energy.
Scammers are also creating fake bills that look like the real thing.
“Scammers will actually take our Alectra logo and send out various authentic looking documents to people’s homes, so people have to be aware and check their statements very carefully” said Ashley Trgachef spokesperson with Alectra Utilities.
Customers are advised to never make a payment not listed on their recent bill and to ignore texts or emails with links promising refunds, and to verify any official relief fund information only through their utility and not to provide personal information or details about their account.
If you are given a number to call don’t call the number provided, you are better off to go to your bill or the utility’s website to makes sure it is the correct number for customer service and to review information about customer flexibility there.
Some scammers have even gone door to door demanding payment, and the utilities are advising anyone who feels threatened to call police.
They are also asking that you share the information with family and friends to be careful if they are contacted by someone claiming to be with their electricity company.
If you fall for a scam and money is sent, it's very difficult to get it back.
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