Can food waste be turned into green hydrogen to produce electricity?


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Food Waste to Green Hydrogen uses biological production to create clean energy, enabling waste-to-energy, decarbonization, and renewable hydrogen for electricity, industrial processes, and transport fuels, developed at Purdue University Northwest with Purdue Research Foundation licensing.

 

Key Points

A biological process converting food waste into renewable hydrogen for clean energy, electricity, industry, and transport.

✅ Enables rapid, scalable waste-to-hydrogen deployment

✅ Supports grid power, industrial heat, and mobility fuels

✅ Backed by patents, DOE grants, and licensing deals

 

West Lafayette, Indiana-based Purdue Research Foundation recently completed a licensing agreement with an international energy company – the name of which was not disclosed – for the commercialization of a new process discovered at Purdue University Northwest (PNW) for the biological production of green hydrogen from food waste. A second licensing agreement with a company in Indiana is under negotiation.


Food waste into green hydrogen
Researchers say that this new process, which uses food waste to biologically produce hydrogen, can be used as a clean energy source for producing electricity, as well as for chemical and industrial processes like green steel production or as a transportation fuel.

Robert Kramer, professor of physics at PNW and principal investigator for the research, says that more than 30% of all food, amounting to $48 billion, is wasted in the United States each year. That waste could be used to create hydrogen, a sustainable energy source alongside municipal solid waste power options. When hydrogen is combusted, the only byproduct is water vapor.

The developed process has a high production rate and can be implemented quickly to support large H2 energy systems in practice. The process is robust, reliable, and economically viable for local energy production and processes.

The research team has received five grants from the US Department of Energy and the Purdue Research Foundation totaling around $800,000 over the last eight years to develop the science and technology that led to this process, much like advances in advanced nuclear reactors drive clean energy innovation.

Two patents have been issued, and a third patent is currently in the final stages of approval. Over the next nine months, a scale-up test will be conducted, reflecting how power-to-gas storage can integrate with existing infrastructure. Based upon test results, it is anticipated that construction could start on the first commercial prototype within a year.

Last week, a facility designed to turn non-recyclable plastics into green hydrogen was approved in the UK, as other innovations like the seawater power concept progress globally. It is the second facility of its kind there.

 

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Rhode Island issues its plan to achieve 100% renewable electricity by 2030

Rhode Island 100% Renewable Electricity by 2030 outlines pathways via offshore wind, retail solar, RECs, and policy reforms, balancing decarbonization, grid reliability, economics, and equity to close a 4,600 GWh supply gap affordably.

 

Key Points

A statewide plan to meet all electricity demand with renewables by 2030 via offshore wind, solar, and REC policies.

✅ Up to 600 MW offshore wind could add 2,700 GWh annually

✅ Retail solar programs may supply around 1,500 GWh per year

✅ Amend RES to retain RECs and align supply with real-time demand

 

A year ago, Executive Order 20-01 cemented in a place Rhode Island’s goal to meet 100% of the state’s electricity demand with renewable energy by 2030, aligning with the road to 100% renewables seen across states. The Rhode Island Office of Energy Resources (OER) worked through the year on an economic and energy market analysis, and developed policy and programmatic pathways to meet the goal.

In the most recent development, OER and The Brattle Group co-authored a report detailing how this goal will be achieved, The Road to 100% Renewable Electricity – The Pathways to 100%.

The report includes economic analysis of the key factors that will guide Rhode Island as it accelerates adoption of carbon-free renewable resources, complementing efforts that are tracking progress on 100% clean energy targets nationwide.

The pathway rests on three principles: decarbonization, economics and policy implementation, goals echoed in Maine’s 100% renewable electricity target planning.

The report says the state needs to address the gap between projected electricity demand in 2030 and projected renewable generation capacity. The report predicts a need for 4,600 GWh of additional renewable energy to close the gap. Deploying that much capacity represents a 150% increase in the amount of renewable energy the state has procured to date. The final figure could as much as 600-700 GWh higher or lower.

Addressing the gap
The state is making progress to close the gap.

Rhode Island recently announced plans to solicit proposals for up to 600 MW of additional offshore wind resources. A draft request for proposals (RFP) is expected to be filed for regulatory review in the coming months, aligning with forecasts that one-fourth of U.S. electricity will soon be supplied by renewables as markets mature. Assuming the procurement is authorized and the full 600 MW is acquired, new offshore wind would add about 2,700 GWh per year, or about 35% of 2030 electricity demand.

Beyond this offshore wind procurement, development of retail solar through existing programs could add another 1,500 GWh per year. That leaves a smaller–though still sizable–gap of around 400 GWh per year of renewable electricity.

All this capacity will come with a hefty price. The report finds that rate impacts would likely boost e a typical 2030 monthly residential bill by about $11 to $14 with utility-scale renewables, or by as much as $30 if the entire gap were to be filled with retail solar.

The upside is that if the renewable resources are developed in-state, the local economic activity would boost Rhode Island’s gross domestic product and local jobs, especially when compared to procuring out-of-state resources or buying Renewable Energy Credits (RECs), and comes as U.S. renewable electricity surpassed coal in 2022 across the national grid.

Policy recommendations
One policy item that has to be addressed is the state’s Renewable Energy Standard (RES), which currently calls for meeting 38.5% of electricity deliveries with renewables by 2035, even as the federal 2035 clean electricity goal sets a broader benchmark for decarbonization. For example, RES compliance at present does not require the physical procurement of power produced by renewable energy facilities. Instead, electricity providers meet their requirements by purchasing RECs.

The report recommends amending the state’s RES to seek methods by which Rhode Island can retain all of the RECs procured through existing policy and program channels, along with RECs resulting from ratepayer investment in net metered projects, while Nevada’s 50% by 2030 RPS provides a useful interim comparison.

The report also recognizes that the RES alone is unlikely to drive sufficient investment renewable generation and should be paired with programs and policies to ensure sufficient renewable generation to meet the 100% goal. The state also needs to address the RECs created by behind-the-meter systems that add mechanisms to better match the timing of renewable energy generation with real-time demand. The policy would have the 100% RES remain in effect beyond 2030 and also match shifts in energy demand, particularly as other parts of the economy electrify.

Fostering equity
The state also is putting a high priority on making sure the transition to renewables is an equitable one.

The report recommends partnering with and listening to frontline communities about their needs and goals in the clean energy transition. This will include providing traditionally underserved communities with expert consultation to help guide decision making. The report also recommends holding listening sessions to increase accessibility to and understanding of energy system basics.

 

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BC Hydro Introduces 'Vehicle-to-Grid' Pilot Initiative

BC Hydro Vehicle-to-Grid Pilot enables EVs to deliver V2G power, using bidirectional charging to provide grid services, clean energy resilience, and emergency power for microgrids, critical infrastructure, and storm response.

 

Key Points

BC Hydro's V2G pilot uses parked EVs as mobile batteries, supplying bidirectional power to the grid for resilience.

✅ Medium- and heavy-duty EV integration via 60 kW charger

✅ Supports critical infrastructure and storm response

✅ Cleaner, faster alternative to diesel generators

 

BC Hydro has unveiled an innovative pilot project designed to enable electric vehicles (EVs) to contribute electricity back to the power grid, with some owners able to sell electricity back to the grid through managed programs, effectively transforming these vehicles into mobile energy storage units that function as capacity on wheels for the electricity system.

The utility company recently announced the successful trial of the vehicle-to-grid program, allowing for the transfer of electricity from the batteries of medium- and heavy-duty EVs back to the electrical grid. This surplus electricity can be utilized in various ways, including supporting emergency response efforts by energizing critical infrastructure and to power buildings during natural disasters or major storms. It offers a cleaner, faster, and more flexible alternative to conventional methods like the use of diesel generators.

BC Hydro's President and CEO, Chris O'Riley, highlighted the significance of this initiative, stating, "The average car is parked 95 per cent of the time, and with the evolution of technology solutions like vehicle-to-grid, stationary vehicles hold the potential to become mobile batteries, powered by clean and affordable electricity."

The successful test was conducted using a Lion Electric school bus provided by Lynch Bus Lines, which was connected to a 60-kilowatt charger, illustrating BC Hydro's rollout of faster electric vehicle charging across the province. BC Hydro pointed out that the typical bus battery holds 66 kilowatts of electricity, sufficient to power 24 single-family homes with electric heating for two hours. Therefore, if 1,000 of these buses were converted to electric power, they could collectively supply electricity to 24,000 homes for two hours.

This groundbreaking project is a collaborative effort between BC Hydro, Powertech, and Coast to Coast Experience, with funding support from the provincial government amid study findings that B.C. may need to double its power output to meet transport electrification.

While this pilot marks the first of its kind in Canada, similar technology has already been successfully implemented in Europe and the United States, including California's efforts to leverage EVs for grid stability that offer promising potential for enhancing the energy landscape and sustainability in the region.

Separately, Nova Scotia Power plans to pilot electric vehicle to grid integration in Atlantic Canada, underscoring growing national interest in V2G approaches.

 

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Why Electric Vehicles Are "Greener" Than Ever In All 50 States

UCS EV emissions study shows electric vehicles produce lower life-cycle emissions than gasoline cars across all states, factoring tailpipe, grid mix, power plant sources, and renewable energy, delivering mpg-equivalent advantages nationwide.

 

Key Points

UCS study comparing EV and gas life-cycle emissions, finding EVs cleaner than new gas cars in every U.S. region.

✅ Average EV equals 93 mpg gas car on emissions.

✅ Cleaner than 50 mpg gas cars in 97% of U.S.

✅ Regional grid mix included: tailpipe to power plant.

 

One of the cautions cited by electric vehicle (EV) naysayers is that they merely shift emissions from the tailpipe to the local grid’s power source, implicating state power grids as a whole, and some charging efficiency claims get the math wrong, too. And while there is a kernel of truth to this notion—they’re indeed more benign to the environment in states where renewable energy resources are prevalent—the average EV is cleaner to run than the average new gasoline vehicle in all 50 states. 

That’s according to a just-released study conducted the Union of Concerned Scientists (UCS), which determined that global warming emissions related to EVs has fallen by 15 percent since 2018. For 97 percent of the U.S., driving an electric car is equivalent or better for the planet than a gasoline-powered model that gets 50 mpg. 

In fact, the organization says the average EV currently on the market is now on a par, environmentally, with an internal combustion vehicle that’s rated at 93 mpg. The most efficient gas-driven model sold in the U.S. gets 59 mpg, and EV sales still trail gas cars despite such comparisons, with the average new petrol-powered car at 31 mpg.

For a gasoline car, the UCS considers a vehicle’s tailpipe emissions, as well as the effects of pumping crude oil from the ground, transporting it to a refinery, creating gasoline, and transporting it to filling stations. For electric vehicles, the UCS’ environmental estimates include both emissions from the power plants themselves, along with those created by the production of coal, natural gas or other fossil fuels used to generate electricity, and they are often mischaracterized by claims about battery manufacturing emissions that don’t hold up. 

Of course the degree to which an EV ultimately affects the atmosphere still varies from one part of the country to another, depending on the local power source. In some parts of the country, driving the average new gasoline car will produce four to eight times the emissions of the average EV, a fact worth noting for those wondering if it’s the time to buy an electric car today. The UCS says the average EV driven in upstate New York produces total emissions that would be equivalent to a gasoline car that gets an impossible 255-mpg. In even the dirtiest areas for generating electricity, EVs are responsible for as much emissions as a conventionally powered car that gets over 40 mpg.

 

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Alberta renewable energy surge could power 4,500 jobs

Alberta Renewable Energy Boom highlights corporate investments, power purchase agreements, wind and solar capacity gains, grid decarbonization, and job growth, adding 2 GW and $3.7B construction since 2019 in an open electricity market.

 

Key Points

Alberta's PPA-driven wind and solar surge adds 2 GW, cuts grid emissions, creates jobs, and accelerates private builds.

✅ 2 GW added since 2019 via corporate PPAs

✅ Open electricity market enables direct deals

✅ Strong wind and solar resources boost output

 

Alberta has seen a massive increase in corporate investment in renewable energy since 2019, and capacity from those deals is set to increase output by two gigawatts —  enough to power roughly 1.5 million homes. 

“Our analysis shows $3.7 billion worth of renewables construction by 2023 and 4,500 jobs,” Nagwan Al-Guneid, the director of Business Renewables Centre Canada, says. 

The centre is an initiative of the environmental think tank Pembina Institute and provides education and guidance for companies looking to invest in renewable energy or energy offsets across Canada. Its membership is made up of renewable energy companies.

The addition of two gigawatts is over two times the amount of renewable energy added to the grid between 2010 and 2017, according to the Canadian Energy Regulator. 

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“This is driven directly by what we call power purchase agreements,” Al-Guneid says. “We have companies from across the country coming to Alberta.”

So far this year, 191 megawatts of renewable energy will be added through purchase agreements, according to the Business Renewables Centre, as diversified energy sources can make better projects overall.

Alberta’s electricity system is unique in Canada — an open market where companies can ink deals directly with private power producers to sell renewable energy and buy a set amount of electricity produced each year, either for use or for offset credits. The financial security provided by those contracts helps producers build out more renewable projects without market risks. Purchasers get cheap renewable energy or credits to meet internal or external emissions goals. 

It differs from other provinces, many of which rely on large hydro capacity and where there is a monopoly, often government-owned, on power supply. 

In those provinces, investment in renewables largely depends on whether the company with the monopoly is in a buying mood, says Blake Shaffer, an economics professor at the University of Calgary who studies electricity markets. 

That’s not the case in Alberta, where the only real regulatory hurdle is applying to connect a project to the grid.

“Once that’s approved, you can just go ahead and build it, and you can sell it,” Shaffer says.

That sort of flexibility has attracted some big investments, including two deals with Amazon in 2021 to purchase 455 megawatts worth of solar power from Calgary-based Greengate Power. There are also big investments from oil companies looking to offset emissions.

The investments are allowing Alberta to decarbonize its grid, largely with the backing of the private sector. 

Shaffer says Alberta is the “renewables capital in Canada,” a powerhouse in both green and fossil energy by many measures.

“That just shocks people because of course their association with Alberta is nothing about renewables, but oil and gas,” Shaffer says. “But it really is the investment centre for renewables in the entire country right now.”

Alberta has ‘embarrassing’ riches in wind energy and solar power
It’s not just the market that is driving Alberta’s renewables boom. According to Shaffer there are three other key factors: an embarrassment of wind and solar riches, the need to transition away from a traditionally dirty, coal-reliant grid and the current high costs of energy. 

Shaffer says the strong and seemingly non-stop winds coming off the foothills of the Rockies in the southwest of the province mean wind power is increasingly competitive and each turbine produces more energy compared to other areas. The same is true for solar, with an abundance of sunny days.

“Southern Alberta and southern Saskatchewan have the best solar insolation,” he says. “You put a panel in Vancouver, or you put a panel in Medicine Hat, and you’re gonna get about 50 per cent more energy out of that panel in Medicine Hat, and they’re gonna cost you the same.”

The spark that set off the surge in investments wasn’t strictly an open-market mechanism. Under the previous NDP government, the province brought in a program that allowed private producers to compete for government contracts, with some solar facilities contracted below natural gas demonstrating cost advantages.

The government agreed to a certain price and the producers were then allowed to sell their electricity on the open market. If the price dropped below what was guaranteed, the province would pay the difference. If, however, the price was higher, the developers would pay the difference to the government. 

 

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Canada unveils plan for regulating offshore wind

Canada Offshore Wind Amendments streamline offshore energy regulators in Nova Scotia and Newfoundland and Labrador, enabling green hydrogen, submerged land licences, regional assessments, MPAs standards, while raising fisheries compensation, navigation, and Indigenous consultation considerations.

 

Key Points

Reforms assign offshore wind to joint regulators, enable seabed licensing, and address fisheries and Indigenous issues.

✅ Assigns wind oversight to Canada-NS and Canada-NL offshore regulators

✅ Introduces single submerged land licence and regional assessments

✅ Addresses fisheries, navigation, MPAs, and Indigenous consultation

 

Canada's offshore accords with Nova Scotia and Newfoundland and Labrador are being updated to promote development of offshore wind farms, but it's not clear yet whether any compensation will be paid to fishermen displaced by wind farms.

Amendments introduced Tuesday in Ottawa by the federal government assign regulatory authority for wind power to jointly managed offshore boards — now renamed the Canada-Nova Scotia Offshore Energy Regulator and Canada-Newfoundland and Labrador Offshore Energy Regulator.

Previously the boards regulated only offshore oil and gas projects.

The industry association promoting offshore wind development, Marine Renewables Canada, called the changes a crucial step.

"The tabling of the accord act amendments marks the beginning of, really, a new industry, one that can play a significant role in our clean energy future," said  Lisen Bassett, a spokesperson for Marine Renewables Canada. 

Nova Scotia's lone member of the federal cabinet, Immigration Minister Sean Fraser, also talked up prospects at a news conference in Ottawa.


'We have lots of water'

"The potential that we have, particularly when it comes to offshore wind and hydrogen is extraordinary," said Fraser.

"There are real projects, like Vineyard Wind, with real investors talking about real jobs."

Sharing the stage with assembled Liberal MPs from Nova Scotia and Newfoundland and Labrador was Nova Scotia Environment Minister Tim Halman, representing a Progressive Conservative government in Halifax.

"If you've ever visited us or Newfoundland, you know we have lots of water, you know we have lots of wind, and we're gearing up to take advantage of those natural resources in a clean, sustainable way. We're paving the way for projects such as offshore wind, tidal energy in Nova Scotia, and green hydrogen production," said Halman.

Before a call for bids is issued, authorities will identify areas suitable for development, conservation or fishing.

The legislation does not outline compensation to fishermen excluded from offshore areas because of wind farm approvals.


Regional assessments

Federal officials said potential conflicts can be addressed in regional assessments underway in both provinces.

Minister of Natural Resources of Canada Jonathan Wilkinson said fisheries and navigation issues will have to be dealt with.

"Those are things that will have to be addressed in the context of each potential project. But the idea is obviously to ensure that those impacts are not significant," Wilkinson said.

Speaking after the event, Christine Bonnell-Eisnor, chair of what is still called the Canada Nova Scotia Offshore Petroleum Board, said what compensation — if any — will be paid to fishermen has yet to be determined.

"It is a question that we're asking as well. Governments are setting the policy and what terms and conditions would be associated with a sea bed licence. That is a question governments are working on and what compensation would look like for fishers."

Scott Tessier, who chairs  the Newfoundland Board, added "the experience has been the same next door in Nova Scotia, the petroleum sector and the fishing sector have an excellent history of cooperation and communication and I don't expect it look any different for offshore renewable energy projects."


Nova Scotia in a hurry to get going

The legislation says the offshore regulator would promote compensation schemes developed by industry and fishing groups linked to fishing gear.

Nova Scotia is in a hurry to get going.

The Houston government has set a target of issuing five gigawatts of licences for offshore wind by 2030, with leasing starting in 2025, reflecting momentum in the U.S. offshore wind market as well. It is intended largely for green hydrogen production. That's almost twice the province's peak electricity demand in winter, which is 2.2 gigawatts.

The amendments will streamline seabed approvals by creating a single "submerged land" licence, echoing B.C.'s streamlined process for clean energy projects, instead of the exploration, significant discovery and production licences used for petroleum development.

Federal and provincial ministers will issue calls for bids and approve licences, akin to BOEM lease requests seen in the U.S. market.

The amendments will ensure Marine Protected Area's  (MPAs) standards apply in all offshore areas governed by the regulations.


Marine protected areas

Wilkinson suggested, but declined, three times to explicitly state that offshore wind farms would be excluded from within Marine Protected Areas.

After this story was initially published on Tuesday, Natural Resources Canada sent CBC a statement indicating offshore wind farms may be permitted inside MPAs.

Spokesperson Barre Campbell noted that all MPAs established in Canada after April 25, 2019, will be subject to the Department of Fisheries and Oceans new standards that prohibit key industrial activities, including oil and gas exploration, development and production.

"Offshore renewable energy activities and infrastructure are not key industrial activities," Campbell said in a statement.

"Other activities may be prohibited, however, if they are not consistent with the conservation objectives that are established by the relevant department that has or that will establish a marine protected area."


Federal impact assessment process

The new federal impact assessment process will apply in offshore energy development, and recent legal rulings such as the Cornwall wind farm decision highlight how courts can influence project timelines.

For petroleum projects, future significant discovery licences will be limited to 25 years replacing the current indefinite term.

Existing significant discovery licences have been an ongoing exception and are not subject to the 25-year limit. Both offshore energy regulators will be given the authority to fulfil the Crown's duty to consult with Indigenous peoples

 

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Record numbers of solar panels were shipped in the United States during 2021

U.S. Solar Panel Shipments 2021 surged to 28.8 million kW of PV modules, tracking utility-scale and small-scale capacity additions, driven by imports from Asia, resilient demand, supply chain constraints, and declining prices.

 

Key Points

Record 28.8M kW PV modules shipped in 2021; 80% imports; growth in utility- and small-scale capacity with lower prices.

✅ 28.8M kW shipped, up from 21.8M kW in 2020 (record capacity)

✅ 80% of PV module shipments were imports, mainly from Asia

✅ Utility-scale +13.2 GW; small-scale +5.4 GW; residential led

 

U.S. shipments of solar photovoltaic (PV) modules (solar panels) rose to a record electricity-generating capacity of 28.8 million peak kilowatts (kW) in 2021, from 21.8 million peak kW in 2020, based on data from our Annual Photovoltaic Module Shipments Report. Continued demand for U.S. solar capacity drove this increase in solar panel shipments in 2021, as solar's share of U.S. electricity continued to rise.

U.S. solar panel shipments include imports, exports, and domestically produced and shipped panels. In 2021, about 80% of U.S. solar panel module shipments were imports, primarily from Asia, even as a proposed tenfold increase in solar aims to reshape the U.S. electricity system.

U.S. solar panel shipments closely track domestic solar capacity additions; differences between the two usually result from the lag time between shipment and installation, and long-term projections for solar's generation share provide additional context. We categorize solar capacity additions as either utility-scale (facilities with one megawatt of capacity or more) or small-scale (largely residential solar installations).

The United States added 13.2 gigawatts (GW) of utility-scale solar capacity in 2021, an annual record and 25% more than the 10.6 GW added in 2020, according to our Annual Electric Generator Report. Additions of utility-scale solar capacity reached a record high, reflecting strong growth in solar and storage despite project delays, supply chain constraints, and volatile pricing.

Small-scale solar capacity installations in the United States increased by 5.4 GW in 2021, up 23% from 2020 (4.4 GW), as solar PV and wind power continued to grow amid favorable government plans. Most of the small-scale solar capacity added in 2021 was installed on homes. Residential installations totaled more than 3.9 GW in 2021, compared with 2.9 GW in 2020.

The cost of solar panels has declined significantly since 2010. The average value (a proxy for price) of panel shipments has decreased from $1.96 per peak kW in 2010 to $0.34 per peak kW in 2021, as solar became the third-largest renewable source and markets scaled. Despite supply chain constraints and higher material costs in 2021, the average value of solar panels decreased 11% from 2020.

In 2021, the top five destination states for U.S. solar panel shipments were:

California (5.09 million peak kW)
Texas (4.31 million peak kW)
Florida (1.80 million peak kW)
Georgia (1.15 million peak kW)
Illinois (1.12 million peak kW)
These five states accounted for 46% of all U.S. shipments, and 2023 utility-scale project pipelines point to continued growth.

 

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