Solar battery recharging center creates carbon neutral farm

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Cellstrom GmbH is constructing a solar power battery recharging center to create a carbon-neutral farm on the large olive and wine property of the ancient Castle of Monte Vibiano Vecchio, near the city of Perugia in the Umbria Region in the centre of Italy.

The solar power centre, built by Cellstrom, is a shed-sized box with 24 high-tech solar panels on the roof, housing a revolutionary liquid-based battery. The battery has an efficiency of up to 80%, which is improved for variable loads, and when it is in standby it is improved by utilizing a cascaded architecture and disconnectable inverter. The electrolyte alone has a very low self-discharge rate of 1% per year, and it can be used almost indefinitely.

Although charging is an endothermic process, the battery can be immediately recharged at high power — during which time the system can be cooled, even after a strenuous discharge. A cycle stability of more than 10,000 charge/discharges can be obtained by extracting 85% of the total capacity.

The lifetime of a battery lies between 10 and 20 years. The charging state and the consequent amount of the remaining energy of the battery can be measured exactly. Precise calculation of the remaining capacity enables maximum utilization of the energy that has been stored. A high supply security is guaranteed by remote observation of the state of charge, and the built-in controller can monitor every safety-critical parameter. In case of a breakdown, an alarm signal would be automatically sent to the central service centre. Utilizing the same channel, it is possible to conduct remote diagnoses and monitoring.

The new technology makes it possible to store solar energy for the first time. At present, electricity generated by the sun has to be used immediately. Depending on the amount of usage, the Cellstrom battery centre under construction in Monte Vibiano Vecchio can store solar-sourced electricity for up to three days. The Austrian company is working to extend such usage to 10 days or even more, enabling the overall agricultural activities within the property to continue operating also without sunlight.

It means that golf carts and electric bikes, already used inside the property, will become the first means of transport for farm workers, and workers will be able to charge up their vehicles at the battery centre.

The project is part of an experiment to cut the carbon-dioxide (CO2) emissions on the farm to zero starting in 2009. New renewables technologies have been installed and applied to the property, including electric vehicles, miniature tractors using a new generation of biofuels, boilers used to create heat in the olive oil production process, wood chips instead of methane gas, a plantation of 10,000 trees to soak up and offset any unforeseen CO2 emissions, and sun-reflecting paint on storage buildings and tanks to cut the effects of global warming.

Key investments have been made by the property's owners, and they are expected to turn into profit in about five years, said Lorenzo Fasola Bologna, Vibiano Vecchio's Chef Executive Officer. The total cost of ownership, calculated over the lifetime of the flow battery, is comparatively small. Cellstrom estimates that the farm will be able to save up to 4,500 litres of petrol per year and decrease CO2 emissions by 10 tons.

Cellstrom, founded in 2000, sells solutions for its revolutionary FB10/100 energy storage system, a vanadium redox flow battery associated with power electronics in weatherproof housing. The battery, suitable for use with renewable energy sources, is manufactured at one of the two Cellstrom sites near Vienna in Brunn am Gebirge, where the company's production and sales are based. The vanadium redox flow battery is technologically an optimum mixture of environmental acceptability, performance, lifetime, energy density and robustness.

A solar battery is designed for use with an off-grid photovoltaic installation, including at least a photovoltaic panel, battery charger, solar battery and load. If the load requires an alternating current source, an inverter will also be required to transform the battery's direct current. In practice, a diesel generator, wind turbine or fuel cell may also be added.

To date, the term "solar battery" refers almost exclusively to lead-acid batteries designed for this purpose, although nickel-cadmium batteries can be also used in some cases.

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Ontario Government Consults On Changes To Industrial Electricity Pricing And Programs

Ontario electricity pricing consultations will gather business input on OEB rate design, Industrial Conservation Initiative, dynamic pricing, global adjustment, and system costs through online feedback and sector-specific in-person sessions province-wide.

 

Key Points

Consultations gathering business input on rates, programs, and OEB policy to improve fairness and reduce system costs.

✅ Consults on ICI, GA, dynamic pricing structures

✅ Seeks views on OEB C&I rate design changes

✅ In-person sessions across key industrial sectors

 

The Ontario government has announced plans to hold consultations to seek input from businesses about industrial electricity pricing and programs. This will be done through Ontario's online consultations directory and though in-person sector-specific consultation sessions across the province. The in-person sessions will be held in all areas of Ontario, and will target "key industries," including automotive and the build-out of electric vehicle charging stations infrastructure, forestry, mining, agriculture, steel, manufacturing and chemicals.

On April 1, 2019, the Ontario government published a consultation notice for this process, confirming that it is looking for input on "electricity rate design, existing tax-based incentives, reducing system costs and regulatory and delivery costs," including related proposals such as the hydrogen rate reduction proposal under discussion. The consultation process includes a list of nine questions for respondents (and presumably participants in the in-person sessions) to address. These include questions about:

The benefits of the Industrial Conservation Initiative (described below), including how it could be changed to improve fairness and industrial competitiveness, and how it could complement programs like the Hydrogen Innovation Fund that support industrial innovation.

Dynamic pricing structures that allow for lower rates in return for responding to price signals versus a flat rate structure that potentially costs more, but is more stable and predictable, as Ontario's energy storage expansion accelerates.

Interest in an all-in commodity contract with an electricity retailer, even if it involves a risk premium.

Interested parties are invited to submit their comments before May 31, 2019.

The government's consultation announcement follows recent developments in the Ontario Energy Board's (OEB) review of electricity ratemaking for commercial and industrial customers, and intertie projects such as the Lake Erie Connector that could affect market dynamics.

In December 2018, the OEB published a paper from its Market Surveillance Panel (MSP) examining the Industrial Conservation Initiative (ICI), and potential alternative approaches. The ICI is a program that allows qualifying large industrial customers to base their global adjustment (GA) payments on their consumption during five peak demand hours in a year. Customers who find ways to reduce consumption at those times, perhaps through DERs and enabling energy storage options, will reduce their electricity costs. This shifts GA costs to other customers. The MSP found that the ICI does not fairly allocate costs to those who cause them and/or benefit from them, and recommends that a better approach should be developed.

In February 2019, the OEB released its Staff Report to the Board on Rate Design for Commercial and Industrial Electricity Customers, setting out recommendations for new rate designs for electricity commercial and industrial (C&I) rate classes as Ontario increasingly turns to battery storage to meet rising demand. As described in an earlier post, the Staff Report includes recommendations to: (i) establish a fixed distribution charge for commercial customers with demands under 10 kW; (ii) implement a demand charge (rather than the current volumetric charge) for C&I customers with demands between 10kW and 50kW; and (iii) introduce a "capacity reserve charge" for customers with load displacement generation to replace stand-by charges and provide for recognition of the benefits of this generation on the system. The OEB held a stakeholder information session in mid-March on this initiative, and interested parties are now filing submissions in response to the Staff Report.

Whether and how the OEB's processes will fit together with the government's consultation process remains to be seen.

 

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Canada to spend $2M on study to improve Atlantic region's electricity grid

Atlantic Clean Power Superhighway outlines a federally backed transmission grid upgrade for Atlantic Canada, adding 2,000 MW of renewable energy via interprovincial ties, improved hydro access from Quebec and Newfoundland and Labrador, with utility-regulator funding.

 

Key Points

A federal-provincial plan upgrading Atlantic Canada's grid to deliver 2,000 MW of renewables via interprovincial links.

✅ $2M technical review to rank priority transmission projects

✅ Target: add 2,000 MW renewable power to Atlantic grid

✅ Cost-sharing by utilities, regulators, and federal-provincial funding

 

The federal government will spend $2 million on an engineering study to improve the Atlantic region's electricity grid.

The study was announced Friday at a news conference held by 10 federal and provincial politicians at a meeting of the Atlantic Growth Strategy in Halifax, which includes ongoing regulatory reform efforts for cleaner power in Atlantic Canada.

The technical review will identify the most important transmission projects including inter-provincial ties needed to move electricity across the region.

Nova Scotia Premier Stephen McNeil said the results are expected in July.

Provinces will apply to the federal government for federal funding to build the infrastructure. Utilities in each province will be expected to pay some portion of the cost by applying to respective regulators, but what share falls to ratepayers is not known.

​Federal Intergovernmental Affairs Minister Dominic LeBlanc characterized the grid improvements as something that will cost hundreds of millions of dollars.

He said the study was the first step toward "a clean power superhighway across the region.

"We have a historic opportunity to quickly get to work on upgrading ultimately a whole series of transmission links of inter-provincial ties. That's something that the government of Canada would be anxious to work with in terms of collaborating with the provinces on getting that right."

Premier McNeil referred specifically to improving hydro access from Quebec and Newfoundland and Labrador.

For context, a massive cross-border hydropower line to New York is planned, illustrating the scale of projects under consideration.

 

Goal of 2,000 megawatts

McNeil said the goal was to bring an additional 2,000 megawatts of renewable electricity into the region.

"I can't stress to you enough how critical this will be for the future economic success and stability of Atlantic Canada, especially as Atlantic grids face intensifying storms," he said.

Federal Immigration Minister Ahmed Hussen also announced a pilot project to attract immigrant workers will be extended by two years to the end of 2021.

International graduate students will be given 24 months to apply under the program — a one-year increase.

 

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Renewable power surpasses fossil fuels for first time in Europe

EU Renewable Power Overtakes Fossil Fuels, reflecting a greener energy mix as wind, solar, and hydro expand, cutting CO2 emissions and curbing coal while negative prices rise amid pandemic-driven demand drops.

 

Key Points

A milestone as renewables surpass fossil power in the EU, driven by wind, solar, hydro growth and pandemic demand.

✅ 40% renewables vs 34% fossil in H1 across 27 EU states

✅ Wind, solar, hydro rose; coal generation fell 32% year-on-year

✅ Lower demand, carbon prices, grid priority boosted clean output

 

Renewable power for the first time contributed a bigger share in the European generation mix than fossil fuels, as described in Europe's green surge as the fallout from the pandemic cut energy demand.

About 40 percent of the electricity in the first half in the 27 EU countries came from renewable sources, exceeding the global renewables share reported elsewhere, compared with 34 percent from plants burning fossil fuels, according to environmental group Ember in London. As a result, carbon dioxide emissions from the power sector fell 23 percent.

The rise is significant and encouraging for law makers as Europe prepares to spend billions of euros to recover from the virus, with wind power investments underscoring the momentum, and set the bloc on track to neutralize its carbon footprint by the middle of the century.

“This marks a symbolic moment ​in the transition of Europe’s electricity sector,” said Dave Jones, an electricity analyst at Ember. “For countries like Poland and Czech Republic grappling with how to get off coal, there is now a clear way out.”

While power demand slumped, output from wind and solar farms increased, reflecting global wind and solar gains, because more plants came online in breezy and sunny weather. At the same time, wet conditions boosted hydro power in Iberia and the Nordic markets.

Those conditions helped renewables become a rare bright spot throughout the economic tumult this year. In many areas, renewable sources of electricity have priority to the grid, meaning they could keep growing even as demand shrank and other power plants were turned off.

Electricity demand in the EU fell 7 percent overall. Fossil-fuel power generation plunged 18 percent in the first half compared with a year earlier. Renewable generation grew by 11 percent, according to Ember.

Coal was by far the biggest loser in 2020. It’s one of the most-polluting sources of power and its share is slumping in Europe as the price of carbon increases, with renewables surpassing coal in the US illustrating the broader shift, and governments move to cut emissions. Power from coal fell 32 percent across the EU.

Despite the economics, the decision to shut off coal for good will come down to political agreements between producers and governments, while reducing reliance on Russian energy reshapes policy debates.

One consequence of the jump in renewables is that negative prices have increased, as solar is reshaping prices in Northern Europe in similar ways. On particularly windy or sunny days when there isn’t much demand, the grid can be flooded with power. That’s leading wind farms to be shut off and customers to be paid to consume electricity.

 

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Environmentalist calls for reduction in biomass use to generate electricity

Nova Scotia Biomass Energy faces scrutiny as hydropower from Muskrat Falls via the Maritime Link increases, raising concerns over carbon emissions, biodiversity, ratepayer costs, and efficiency versus district heating in the province's renewable mix.

 

Key Points

Electricity from wood chips and waste wood in Nova Scotia, increasingly questioned as hydropower from the Maritime Link grows.

✅ Hydropower deliveries reduce need for biomass on the grid

✅ Biomass is inefficient, costly, and impacts biodiversity

✅ District heating offers better use of forestry residuals

 

The Ecology Action Centre's senior wilderness coordinator is calling on the Nova Scotia government to reduce the use of biomass to generate electricity now that more hydroelectric power is flowing into the province.

In 2020, the government of the day signed a directive for Nova Scotia Power to increase its use of biomass to generate electricity, including burning more wood chips, waste wood and other residuals from the forest industry. At the time, power from Muskrat Falls hydroelectric project in Labrador was not flowing into the province at high enough levels to reach provincial targets for electricity generated by renewable resources.

In recent months, however, the Maritime Link from Muskrat Falls has delivered Nova Scotia's full share of electricity, and, in some cases, even more, as the province also pursues Bay of Fundy tides projects to diversify supply.

Ray Plourde with the Ecology Action Centre said that should be enough to end the 2020 directive.

Ray Plourde is senior wilderness coordinator for the Ecology Action Centre. (CBC)
Biomass is "bad on a whole lot of levels," said Plourde, including its affects on biodiversity and the release of carbon into the atmosphere, he said. The province's reliance on waste wood as a source of fuel for electricity should be curbed, said Plourde.

"It's highly inefficient," he said. "It's the most expensive electricity on the power grid for ratepayers."

A spokesperson for the provincial Natural Resources and Renewables Department said that although the Maritime Link has "at times" delivered adequate electricity to Nova Scotia, "it hasn't done so consistently," a context that has led some to propose an independent planning body for long-term decisions.

"These delays and high fossil fuel prices mean that biomass remains a small but important component of our renewable energy mix," Patricia Jreiga said in an email, even as the province plans to increase wind and solar projects in the years ahead.

But to Plourde, that explanation doesn't wash.

The Nova Scotia Utility and Review Board recently ruled that Nova Scotia Power could begin recouping costs of the Maritime Link project from ratepayers. As for the rising cost of fossil fuels, Ploude noted that the inefficiency of biomass means there's no deal to be had using it as a fuel source.

"Honestly, that sounds like a lot of obfuscation," he said of the government's position.

No update on district heating plans
At the time of the directive, government officials said the increased use of forestry byproducts at biomass plants in Point Tupper and Brooklyn, N.S., including the nearby Port Hawkesbury Paper mill, would provide a market for businesses struggling to replace the loss of Northern Pulp as a customer. Brooklyn Power has been offline since a windstorm damaged that plant in February, however. Repairs are expected to be complete by the end of the year or early 2023.

Ploude said a better use for waste wood products would be small-scale district heating projects, while others advocate using more electricity for heat in cold regions.

Although the former Liberal government announced six public buildings to serve as pilot sites for district heating in 2020, and a list of 100 other possible buildings that could be converted to wood heat, there have been no updates.

"Currently, we're working with several other departments to complete technical assessments for additional sites and looking at opportunities for district heating, but no decisions have been made yet," provincial spokesperson Steven Stewart said in an email.

 

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Why rolling back European electricity prices is tougher than appears

EU Energy Price Crisis drives soaring electricity bills as natural gas sets pay-as-clear power prices; leaders debate price caps, common gas purchasing, market reform, renewables, and ETS changes amid Ukraine war supply shocks.

 

Key Points

A surge in gas-driven power costs linked to pay-as-clear pricing, supply shocks, and policy rifts across the EU market.

✅ Gas sets marginal power price via pay-as-clear mechanism

✅ Spain pushes decoupling and temporary price caps

✅ EU weighs joint gas buying, efficiency, more renewables

 

Nothing grabs politicians' attention faster than angry voters, and they've had plenty to be furious about as natural gas and electricity bills have soared to stomach-churning levels in recent months, as this UK natural gas analysis illustrates across markets.

That's led to a scramble to figure out ways to get those costs down, with emergency price-limiting measures under discussion — but that's turning out to be very difficult, so the likeliest result is that EU leaders meeting later this week won't come up with any solutions.

“There is no single easy answer to tackle the high electricity prices given the diversity of situations among Member States. Some options are only suitable for specific national contexts,” the European Commission said on Wednesday. “They all carry costs and drawbacks.” 

The initial problem was a surge in gas demand in Asia last year coupled with lower-than-normal Russian gas deliveries that left European gas storage at unusually low levels. Now the war in Ukraine is making matters even worse, as pressure grows for the bloc to rapidly cut its imports of Russian oil, coal and natural gas — although some national leaders reject the economic costs that would entail.

"We will end this dependence as quickly as we can, but to do that from one day to the next would mean plunging our country and all of Europe into a recession," German Chancellor Olaf Scholz warned on Wednesday.

The problem for the bloc is that its liberalized electricity market is tightly tied to the price of natural gas; power prices are set by the final input needed to balance demand — called pay-as-clear — which in most cases is set by natural gas. That's led to countries with large amounts of cheaper renewable or nuclear energy seeing sharp spikes in power prices thanks to the cost of that final bit of gas-fired electricity.

A Spanish-led coalition that includes Portugal, Belgium and Italy wants deep reforms to the EU price model, fueling a broader electricity market revamp debate in Brussels.

Others, such as the Netherlands and Germany, strongly oppose such an approach, echoing how nine countries oppose reforms at the EU level, and want to focus on cushioning the effects of the high prices on consumers and businesses, while letting the market operate. 

A third group, largely in Central Europe, wants to use the price spike to revamp or scrap the bloc's Emissions Trading System and to rethink its Fit for 55 climate legislation.

The European Commission has been holding the middle ground — arguing that the current market model makes sense, but encouraging countries to boost the amount of renewable electricity, in a wake-up call to ditch fossil fuels for Europe, to cut energy use and increase efficiency.

In draft conclusions of this week's European Council summit, seen by POLITICO, EU leaders, amid a France-Germany tussle over reform, call for things like a common approach to buying gas, aimed at preventing countries from competing against each other. But there's no big movement on electricity prices.

“It does not seem realistic to expect a result on the energy discussion at this European Council,” one diplomat said, stressing that the governments will need to see more analysis before committing to any more steps.

Looking for action
Spain wanted a much more robust response. Madrid has been arguing since last summer for “decoupling” gas from the electricity market; together with Portugal, it also mulled limiting the wholesale price of electricity to €180 per megawatt-hour — a proposal that Spain abandoned under fire from industry and consumer groups. 

Now Madrid is pushing to get a specific permission in the summit's final conclusions that would allow countries to voluntarily apply certain short-term solutions such as gas price cap strategies, according to a draft with track changes seen by POLITICO.

The issue with a cap is if gas prices are higher than the cap, Spain might not be able to buy any gas.

 

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Vancouver's Reversal on Gas Appliances

Vancouver Natural Gas Ban Reversal spotlights energy policy, electrification tradeoffs, heat pumps, emissions, grid reliability, and affordability, reshaping building codes and decarbonization pathways while inviting stakeholders to weigh practical constraints and climate goals.

 

Key Points

Vancouver ending its ban on natural gas in new homes to balance climate goals with reliability, costs, and technology.

✅ Balances emissions goals with reliability and affordability

✅ Impacts builders, homeowners, and energy infrastructure

✅ Spurs debate on electrification, heat pumps, and grid capacity

 

In a significant policy shift, Vancouver has decided to lift its ban on natural gas appliances in new homes, a move that marks a pivotal moment in the city's energy policy and environmental strategy. This decision, announced recently and following the city's Clean Energy Champion recognition for Bloedel upgrades, has sparked a broader conversation about the future of energy systems and the balance between environmental goals and practical energy needs. Stewart Muir, CEO of Resource Works, argues that this reversal should catalyze a necessary dialogue on energy choices, highlighting both the benefits and challenges of such a policy change.

Vancouver's original ban on natural gas appliances was part of a broader initiative aimed at reducing greenhouse gas emissions and promoting sustainability, including progress toward phasing out fossil fuels where feasible over time. The city had adopted stringent regulations to encourage the use of electric heat pumps and other low-carbon technologies in new residential buildings. This move was aligned with Vancouver’s ambitious climate goals, which include achieving carbon neutrality by 2050 and significantly cutting down on fossil fuel use.

However, the recent decision to reverse the ban reflects a growing recognition of the complexities involved in transitioning to entirely new energy systems. The city's administration acknowledged that while electric alternatives offer environmental benefits, they also come with challenges that can affect homeowners, builders, and the broader energy infrastructure, including options for bridging the electricity gap with Alberta to enhance regional reliability.

Stewart Muir argues that Vancouver’s policy shift is not just about natural gas appliances but represents a larger conversation about energy system choices and their implications. He suggests that the reversal of the ban provides an opportunity to address key issues related to energy reliability, affordability, and the practicalities of integrating new technologies, including electrified LNG options for industry within the province into existing systems.

One of the primary reasons behind the reversal is the recognition of the practical limitations and costs associated with transitioning to electric-only systems. For many homeowners and builders, natural gas appliances have long been a reliable and cost-effective option. The initial ban on these appliances led to concerns about increased construction costs and potential disruptions for homeowners who were accustomed to natural gas heating and cooking.

In addition to cost considerations, there are concerns about the reliability and efficiency of electric alternatives. Natural gas has been praised for its stable energy supply and efficient performance, especially in colder climates where electric heating systems might struggle to maintain consistent temperatures or fully utilize Site C's electricity under peak demand. By reversing the ban, Vancouver acknowledges that a one-size-fits-all approach may not be suitable for every situation, particularly when considering diverse housing needs and energy demands.

Muir emphasizes that the reversal of the ban should prompt a broader discussion about how to balance environmental goals with practical energy needs. He argues that rather than enforcing a blanket ban on specific technologies, it is crucial to explore a range of solutions that can effectively address climate objectives while accommodating the diverse requirements of different communities and households.

The debate also touches on the role of technological innovation in achieving sustainability goals. As energy technologies continue to evolve, renewable electricity is coming on strong and new solutions and advancements could potentially offer more efficient and environmentally friendly alternatives. The conversation should include exploring these innovations and considering how they can be integrated into existing energy systems to support long-term sustainability.

Moreover, Muir advocates for a more inclusive approach to energy policy that involves engaging various stakeholders, including residents, businesses, and energy experts. A collaborative approach can help identify practical solutions that address both environmental concerns and the realities of everyday energy use.

In the broader context, Vancouver’s decision reflects a growing trend in cities and regions grappling with energy transitions. Many urban centers are evaluating their energy policies and considering adjustments based on new information and emerging technologies. The key is to find a balance that supports climate goals such as 2050 greenhouse gas targets while ensuring that energy systems remain reliable, affordable, and adaptable to changing needs.

As Vancouver moves forward with its revised policy, it will be important to monitor the outcomes and assess the impacts on both the environment and the community. The reversal of the natural gas ban could serve as a case study for other cities facing similar challenges and could provide valuable insights into how to navigate the complexities of energy transitions.

In conclusion, Vancouver’s decision to reverse its ban on natural gas appliances in new homes is a significant development that opens the door for a critical dialogue about energy system choices. Stewart Muir’s call for a broader conversation emphasizes the need to balance environmental ambitions with practical considerations, such as cost, reliability, and technological advancements. As cities continue to navigate their energy futures, finding a pragmatic and inclusive approach will be essential in achieving both sustainability and functionality in energy systems.

 

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