This Thin-Film Turns Heat Waste From Electronics Into Electricity

Connected Home Energy Technologies integrate solar panels, smart meters, EV charging, battery storage, and IoT energy management to cut costs, optimize demand response, and monitor usage in real time for safer, lower-carbon homes.

Key Points

Devices and systems managing home energy: solar PV, smart meters, EV chargers, and storage to cut costs and emissions.

✅ Real-time visibility via apps, smart meters, and IoT sensors

✅ Integrates solar PV, batteries, and EV charging with the grid

✅ Enables demand response, lower bills, and lower carbon

Driven by advances in tech and the advent of high-speed internet connections, many of us now have easy access to a raft of information about the buildings we live in.

Thanks to the proliferation of hardware and software within the home, this trend shows no sign of letting up and comes in many different forms, from indoor air quality monitors to “smart” doorbells which provide us with visual, real-time notifications when someone is attempting to access our property.

Residential renewable electricity generation is also starting to gain traction, with a growing number of people installing solar panels in the hope of reducing bills and their environmental footprint.

In the U.S. alone, the residential solar market installed 738 megawatts of capacity in the third quarter of 2020, a 14% jump compared to the second quarter, according to a recent report from the Solar Energy Industries Association and Wood Mackenzie.

Earlier this month, California-headquartered SunPower — which specializes in the design, production and delivery of solar panels and systems — announced it was rolling out an app which will enable homeowners to assess and manage their energy generation, usage and battery storage settings with their mobile, as California looks to EVs for grid stability amid broader electrification.

The service will be available to customers using its SunPower Eqiunox system and represents yet another instance of how connected technologies can provide us with valuable information about how buildings operate.

Similar offerings in this increasingly crowded marketplace include so-called “smart” meters, which allow consumers to see how much energy they are using and money they are spending in real time.

Elsewhere products such as Hive, from Centrica, enable users to install a range of connected kit — from plugs and lighting to thermostats and indoor cameras — that can be controlled via an app on their cellphone and, in some cases, their voice. 

Connected car charging
Solar panels represent one way that sustainable tech can be integrated into homes. Other examples include the installation of charging points for electric vehicles, as EV growth challenges state grids in many markets.

With governments around the world looking to phase-out the sale of diesel and gasoline vehicles and encourage consumers to buy electric, and Model 3's utility impact underscoring likely shifts in demand, residential charging systems could become an integral part of the built environment in the years ahead.

Firms offering home-based, connected, charging include Pod Point and BP Pulse. Both of these services include apps which provide data such as how much energy has been used, the cost of charging and charge history.  

Another firm, Wallbox, recently announced it was launching its first electric vehicle charger for North American homes.

The company, which is based in Spain, said the system was compatible with all types of electric vehicles, would allow customers to schedule charges, and could be voice-controlled through Google Assistant and Amazon Alexa, while mobile energy storage promises added flexibility for strained grids.

Away from the private sector, governments are also making efforts to encourage the development of home charging infrastructure.

Over the weekend, U.K. authorities said the Electric Vehicle Homecharge Scheme — which gives drivers as much as £350 (around $487) toward a charging system — would be extended and expanded, targeting those who live in leasehold and rented properties, even as UK grid capacity for EVs remains under scrutiny.

Mike Hawes, chief executive of the Society of Motor Manufacturers and Traders, described the government’s announcement as “welcome and a step in the right direction.”

“As we race towards the phase out of sales of new petrol and diesel cars and vans by 2030, we need to accelerate the expansion of the electric vehicle charging network, and proper grid management can ensure EVs are accommodated at scale,” he added.

“An electric vehicle revolution will need the home and workplace installations this announcement will encourage, but also a massive increase in on-street public charging and rapid charge points on our strategic road network.”

Change afoot, but challenges ahead
As attempts to decarbonize buildings and society ramp up, the way our homes look and function could be on the cusp of quite a big shift.

“Grid-connected home generation technologies such as solar electric panels will be important in the shift to a 100% renewable electricity grid, but decarbonising the electricity supply is only one part of the transition,” Peter Tyldesley, chief executive of the Centre for Alternative Technology, told CNBC via email.

With reference to Britain, Tyldesley went on to explain how his organization envisaged “just under 10% of electricity in a future zero carbon society coming from solar PV, utilising 15-20% of … U.K. roof area.” This, he said, compared to over 75% of electricity coming from wind power. 

Heating, Tyldesley went on to state, represented “the bigger challenge.”

“To decarbonise the U.K.’s housing stock at the scale and speed needed to get to zero carbon, we’ll need to refurbish possibly a million houses every year for the next few decades to improve their insulation and airtightness and to install heat pumps or other non-fossil fuel heating,” he said.

“To do this, we urgently need a co-ordinated national programme with a commitment to multi-year government investment,” he added.

On the subject of buildings becoming increasingly connected, providing us with a huge amount of data about how they function, Tyldesley sought to highlight some of the opportunities this could create. 

“Studies of the roll out of smart metering technology have shown that consumers use less energy when they are able to monitor their consumption in real time, so this kind of technology can be a useful part of behaviour change programmes when combined with other forms of support for home efficiency improvements,” he said.

“The roll out of smart appliances can go one step further — responding to signals from the grid and, through vehicle-to-grid power, helping to shift consumption away from peak times towards periods when more renewable energy is available,” he added.

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Space-Based Solar Power enables wireless energy transfer from orbital solar arrays, using microwave beaming to rectennas on Earth, delivering clean baseload power beyond weather and night limits, as demonstrated by Caltech and NASA.

Key Points

Space-based solar power beams microwaves from arrays to rectennas, delivering clean electricity beyond weather and night.

✅ Caltech demo proved wireless power transfer in space.

✅ Microwaves beam to rectennas for grid-scale clean energy.

✅ Operates above clouds, enabling continuous baseload supply.

Ali Hajimiri thinks there’s a better way to power the planet — one that’s not getting the attention it deserves. The Caltech professor of electrical engineering envisages thousands of solar panels floating in space, unobstructed by clouds and unhindered by day-night cycles, effectively generating electricity from the night sky for continuous delivery, wirelessly transmitting massive amounts of energy to receivers on Earth.

This year, that vision moved closer to reality when Mr. Hajimiri, together with a team of Caltech researchers, proved that wireless power transfer in space was possible: Solar panels they had attached to a Caltech prototype in space successfully converted electricity into microwaves and beamed those microwaves to receivers, as a demonstration of beaming power from space to devices about a foot away, lighting up two LEDs.

The prototype also beamed a tiny but detectable amount of energy to a receiver on top of their lab’s building in Pasadena, Calif. The demonstration marks a first step in the wireless transfer of usable power from space to Earth, and advances in low-cost solar batteries could help store and smooth that power flow — a power source that Mr. Hajimiri believes will be safer than direct sun rays. “The beam intensity is to be kept less than solar intensity on earth,” he said.

Finding alternative energy sources is one of the topics that will be discussed by leaders in business, science and public policy, including wave energy, during The New York Times Climate Forward event on Thursday. The Caltech demonstration was a significant moment in the quest to realize space-based solar power, amid policy moves such as a proposed tenfold increase in U.S. solar that would remake the U.S. electricity system — a clean energy technology that has long been overshadowed by other long-shot clean energy ideas, such as nuclear fusion and low-cost clean hydrogen.

If space-based solar can be made to work on a commercial scale, said Nikolai Joseph, a NASA Goddard Space Flight Center senior technology analyst, and integrate with peer-to-peer energy sharing networks, such stations could contribute as much as 10 percent of global power by 2050.

The idea of space-based solar energy has been around since at least 1941, when the science-fiction writer Isaac Asimov set one of his short stories, “Reason,” on a solar station that beamed energy by microwaves to Earth and other planets.

In the 1970s, when a fivefold increase in oil prices sparked interest in alternative energy, NASA and the Department of Energy conducted the first significant study on the topic. In 1995, under the direction of the physicist John C. Mankins, NASA took another look and concluded that investments in space-launch technology were needed to lower the cost and move closer to cheap abundant electricity before space-based solar power could be realized.

“There was never any doubt about it being technically feasible,” said Mr. Mankins, now president of Artemis Innovation Management Solutions, a technology consulting group. “The cost was too prohibitive.”

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Electric Vehicle Ownership Costs include lower maintenance, repair, and fuel expenses; Consumer Reports shows BEV and PHEV TCO beats ICE over 200,000 miles, with per-mile savings compounding through electricity prices and reduced service.

Key Points

Lifetime EV expenses, typically lower than ICE, due to cheaper electricity, reduced maintenance, and fewer repairs.

✅ BEV: $0.012/mi to 50k; $0.028/mi after; vs ICE up to $0.06/mi

✅ PHEV: $0.021/mi to 50k; $0.031/mi after; still below ICE

✅ Savings increase over 200k miles from fuel and service reductions

Electric vehicles are a relatively new technology, and the EV age is arriving ahead of schedule today. Even though we technically saw the first battery-powered vehicles more than 100 years ago, they haven’t really become viable transportation in the modern world until recently, and they are greener than ever in all 50 states as the grid improves.

As viable as they may now be, however, it still seems they’re unarguably more expensive than their conventional internal-combustion counterparts, prompting many to ask whether it’s time to buy an electric car today. Well, until now.

Lower maintenence costs and the lower price of electricity versus gasoline (see the typical cost to charge an electric vehicle in most regions) actually make electric cars much cheaper in the long run, despite their often higher purchase price, according to a new survey by Consumer Reports. The information was collected using annual reliability surveys conducted by CR in 2019 and 2020.

In the first 50,000 miles (80,500 km), battery electric vehicles cost just US$0.012 per mile for maintenence and repairs, while plug-in hybrid models bump that number up to USD$0.021. Compare these numbers to the typical USD$0.028 cost for internal combustion vehicles, and it becomes clear the more you drive, the more you will save, and across the U.S. plug-ins logged 19 billion electric miles in 2021 to prove the point. After 50,000 miles, the costs for BEV and PHEV vehicles is US$0.028 and US$0.031 respectively, while ICE vehicles jump to US$0.06 per mile.

To put it more practically, if you chose to buy a Model 3 instead of a BMW 330i, you’d see a total US$17,600 in savings over the lifetime of the vehicle, aligning with evidence that EVs are better for the planet and your budget as well, based on average driving. In the SUV sector, buying a Tesla Model Y instead of a Lexus crossover would save US$13,400 (provided the former’s roof doesn’t fly off) and buying a Nissan Leaf over a Honda Civic would save US$6,000 over the lifetime of the vehicles.

CR defines the vehicle’s “lifetime” as 200,000 miles (320,000 km). Ergo the final caveat: while it sounds like driving electric means big savings, you might only see those returns after quite a long period of ownership, though some forecasts suggest that within a decade adoption will be nearly universal for many drivers.

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BC Strata EV Charging Reforms streamline approvals under the Strata Property Act, lowering the voting threshold and requiring an electrical planning report to expand EV charging stations in multi-unit strata buildings across British Columbia.

Key Points

BC reforms ease EV charger installs in stratas by lowering votes, requiring plans, and fast-tracking compliant requests.

✅ Vote threshold drops to 50% for EV infrastructure

✅ Electrical planning report required for stratas

✅ Stratas must approve compliant owner charging requests

Owning an electric vehicle (EV) will be a little easier for strata property owners, the province says, after announcing changes to legislation to facilitate the installation of charging stations in strata buildings.

On Thursday, the province said it would be making amendments to the Strata Property Act, the legal framework all strata corporations are required to follow, and align with practical steps for retrofitting condos with chargers in older buildings.

Three areas will improve access to EV charging stations in strata complexes, the province says, including lowering the voting threshold from 75 per cent to 50 per cent for approval of the costs, supported by EV charger rebates that can offset expenses, and changes to the property that are needed to install them, as well as requiring strata corporations to have an electrical planning report to make installation of these stations easier.

The amendments would mean stratas would have to approve owners' requests for such charging stations, even amid high-rise EV charging challenges reported across Canada, as long as "reasonable criteria are met."

Minister of Energy, Mines and Low Carbon Innovation Josie Osborne said people are more likely to buy an electric vehicle if they have the ability to charge it — something that's lacking for many British Columbians living in multi-unit residences, where Vancouver's EV-ready policy is setting a local example for multi-family buildings. 

"B.C. has one of the largest public electric vehicle charging networks in Canada, and leads the country in going electric, but we need to make it easier for more people to charge their EVs at home," Osborne said in a statement.

Tony Gioventu, the executive director of the Condominium Home Owners Association of B.C., said the new legislation strikes a balance between allowing people access to EV charging stations, as examples from Calgary apartments and condos demonstrate, while also ensuring stratas still have control over their properties. 

This is just the latest step in the B.C. government's move to get more EVs on the road: alongside rebates for home and workplace charging, the province passed the Zero-Emission Vehicles Act, which aims for 10 per cent of all new light-duty cars and trucks sold in B.C. to be zero emission by 2025. By 2040, they'll all need to be emission-free.

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Canada 2035 Zero-Emission Vehicle Mandate sets EV sales targets, raising concerns over affordability, battery materials like lithium and copper, charging infrastructure, grid capacity, renewable energy mix, and policy impacts across provinces.

Key Points

Mandate makes all new light-duty vehicles zero-emission by 2035, affecting costs, charging, and electric grid planning.

✅ 100% ZEV sales target for cars, SUVs, light trucks by 2035

✅ Cost pressures from lithium, copper, nickel; EVs remain pricey

✅ Grid, charging build-out needed; impacts vary by provincial mix

Whether or not you want one, can afford one or think they will do essentially nothing to stop global warming, electric vehicles are coming to Canada en masse. This week, the Canadian government set 2035 as the “mandatory target” for the sale of zero-emission SUVs and light-duty trucks as part of ambitious EV goals announced by Ottawa.

That means the sale of gasoline and diesel cars has to stop by then. Transport Minister Omar Alghabra called the target “a must.” The previous target was 2040.

It is a highly aspirational plan that verges on the delusional according to skeptics of an EV revolution who argue its scale is overstated, even if it earns Canada – a perennial laggard on the emission-reduction front – a few points at climate conferences. Herewith, a few reasons why the plan may be unworkable, unfair or less green than advertised.

Liberals say by 2035 all new cars, light-duty trucks sold in Canada will be electric, as Ottawa develops EV sales regulations to implement the mandate.

Parkland to roll out electric-vehicle charging network in B.C. and Alberta

Sticker shock: There is a reason why EVs remain niche products in almost every market in the world (the notable exception is in wealthy Norway): They are bloody expensive and often in short supply in many markets. Unless EV prices drop dramatically in the next decade, Ottawa’s announcement will price the poor out of the car market. Transportation costs are a big issue with the unrich. The 2018 gilets jaunes mass protests in France were triggered by rising fuel costs.

While some EVs are getting cheaper, even the least expensive ones are about double the price of a comparable product with an internal combustion engine. Most EVs are luxury items. The market leader in Canada and the United States is Tesla. In Canada the cheapest Tesla, the Model 3 (“standard range plus” version), costs $49,000 before adding options and subtracting any government purchase incentives. A high-end Model S can set you back $170,000.

To be sure, prices will come down as production volumes increase. But the price decline might be slow for the simple reason that the cost of all the materials needed to make an EV – copper, cobalt, lithium, nickel among them – is climbing sharply and may keep climbing as production increases, straining supply lines.

Lithium prices have doubled since November. Copper has almost doubled in the past year. An EV contains five times more copper than a regular car. Glencore, one of the biggest mining companies, estimated that copper production needs to increase by a million tonnes a year until 2050 to meet the rising demand for EVs and wind turbines, a daunting task given the dearth of new mining projects.

Will EVs be as cheap as gas cars in a decade or so? Impossible to say, but given the recent price trends for raw materials, probably not.

Not so green: There is no such thing as a zero-emission vehicle, even if that’s the label used by governments to describe battery-powered cars. So think twice if you are buying an EV purely to paint yourself green, as research finds they are not a silver bullet for climate change.

In regions in Canada and elsewhere in the world that produce a lot of electricity from fossil-fuel plants, driving an EV merely shifts the output of greenhouse gases and pollutants from the vehicle itself to the generating plant (according to recent estimates, about 18% of Canada’s electricity comes from coal, natural gas and oil; in the United States, 60 per cent).

An EV might make sense in Quebec, where almost all the electricity comes from renewable sources and policymakers push EV dominance across the market. An EV makes little sense in Saskatchewan, where only 17 per cent comes from renewables – the rest from fossil fuels. In Alberta, only 8 per cent comes from renewables.

The EV supply chain is also energy-intensive. And speaking of the environment, recycling or disposing of millions of toxic car batteries is bound to be a grubby process.

Where’s the juice?: Since the roofs of most homes in Canada and other parts of the world are not covered in solar panels, plugging in an EV to recharge the battery means plugging into the electrical grid. What if millions of cars get plugged in at once on a hot day, when everyone is running air conditioners?

The next few decades could emerge as an epic energy battle between power-hungry air conditioners, whose demand is rising as summer temperatures rise, and EVs. The strain of millions of AC units running at once in the summer of 2020 during California’s run of record-high temperatures pushed the state into rolling blackouts. A few days ago, Alberta’s electricity system operator asked Albertans not to plug in their EVs because air conditioner use was straining the electricity supply.

According to the MIT Technology Review, rising incomes, populations and temperatures will triple the number of air conditioners used worldwide, to six billion, by mid-century. How will any warm country have enough power to recharge EVs and run air conditioners at the same time? The Canadian government didn’t say in its news release on the 2035 EV mandate. Will it fund the construction of new fleets of power stations?

The wrong government policy: The government’s announcement made it clear that widespread EV use – more cars – is central to its climate policy. Why not fewer cars and more public transportation? Cities don’t need more cars, no matter the propulsion system. They need electrified buses, subways and trains powered by renewable energy. But the idea of making cities more livable while reducing emissions is apparently an alien concept to this government.

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Offshore Wind Vessel Charging System enables renewable energy offshore charging from wind turbines, delivering clean power to electric vessels and crew transfer ships, boosting range, safety, and net zero maritime operations with reliable, efficient infrastructure.

Key Points

A turbine-mounted offshore charger delivering renewable power to electric vessels, extending range and improving safety.

✅ Turbine-mounted, field-proven offshore charging interface

✅ Delivers 100% renewable electricity to electric vessels

✅ Accelerates net zero, cuts maritime fossil fuel use

An offshore charging system will power vessels with 100% renewably generated electricity from wind turbines, aligning with projects like battery-electric high-speed ferries now advancing in the United States.

The system, developed by Teesside marine electrical engineering firm MJR Power and Automation, will be presented at the Global Offshore Wind event in Manchester (21-22 June), alongside interest in EV energy storage for buildings that could complement offshore charging solutions.

Known as the Offshore Wind On-Turbine Electrical Vessel Charging System, MJR says the chargepoints will provide efficient, safe and reliable transfer of clean power for crew vehicles and other offshore support vessels, while emerging vehicle-to-grid capacity on wheels concepts highlight the wider role of electric fleets.

“This innovation will break down the existing range barriers and increase the uptake by vessel owners and operators, as demonstrated by electric ships on the B.C. coast moving to fully electric and green propulsion systems for retrofit and new-build vessels,” an announcement said.

“In combination with other field-proven technologies, the charging system will be an important part for government and offshore wind owners and operators to achieve their net zero maritime operations targets, and switch away from fossil fuels, complemented by port initiatives such as all-electric berth at London Gateway now under development. The ability to charge when in the field will significantly accelerate adoption of current emission-free propulsion systems, which will be a major asset for the decarbonisation of the global maritime sector.”

The firm recently announced that construction and in-house testing of the system had been completed. The development project was part of the Clean Maritime Demonstration Competition, funded by the Department for Transport and delivered in partnership with Innovate UK, reflecting wider interest in reversing the charge to the grid for resilient energy systems.

MJR electrical engineer Mohammed Latif said: “Our system will be absolutely crucial in helping governments to deliver on their net zero carbon targets, supported by plans like new UK-Europe interconnectors that strengthen clean energy supply, and I am looking forward to demonstrating how it works and the benefits it offers.”

As part of the project, MJR Power and Automation led a consortium of partners – Ore Catapult, Xceco, Artemis Technologies and Tidal Transit – that all provided expertise.

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