Computer virus in Australian power grid

Great Britain electricity generation spans renewables and baseload: wind, solar, nuclear, gas, and biomass, supported by National Grid interconnectors, embedded energy estimates, and BMRS data for dynamic imports and exports across Europe.

Key Points

A diverse, weather-driven mix of renewables, gas, nuclear, and imports coordinated by National Grid.

✅ Baseload from nuclear and biomass; intermittent wind and solar

✅ Interconnectors trade zero carbon imports via subsea cables

✅ Data from BMRS and ESO covers embedded energy estimates

Great Britain has one of the most diverse ranges of electricity generation in Europe, with everything from windfarms off the coast of Scotland to a nuclear power station in Suffolk tasked with keeping the lights on. The increasing reliance on renewable energy sources, as part of the country’s green ambitions, also means there can be rapid shifts in the main source of electricity generation. On windy days, most electricity generation comes from record wind generation across onshore and offshore windfarms. When conditions are cold and still, gas-fired power stations known as peaking plants are called into action.

The electricity system in Great Britain relies on a combination of “baseload” power – from stable generators such as nuclear and biomass plants – and “intermittent” sources, such as wind and solar farms that need the right weather conditions to feed energy into the grid. National Grid also imports energy from overseas, through subsea cables known as interconnectors that link to France, Belgium, Norway and the Netherlands. They allow companies to trade excess power, such as renewable energy created by the sun, wind and water, between different countries. By 2030 it is hoped that 90% of the energy imported by interconnectors will be from zero carbon energy sources, though low-carbon electricity generation stalled in 2019 for the UK.

The technology behind Great Britain’s power generation has evolved significantly over the last century, and at times wind has been the main source of electricity. The first integrated national grid in the world was formed in 1935 linking seven regions of the UK. In the aftermath of industrialisation, coal provided the vast majority of power, before oil began to play an increasingly important part in the 1950s. In 1956, the world’s first commercial nuclear reactor, Calder Hall 1 at Windscale (later Sellafield), was opened by Queen Elizabeth II. Coal use fell significantly in the 1990s while the use of combined cycle gas turbines grew, and in 2016 wind generated more electricity than coal for the first time. Now a combination of gas, wind, nuclear and biomass provide the bulk of Great Britain’s energy, with smaller sources such as solar and hydroelectric power also used. From October 2024, coal will no longer be used to generate electricity, following coal-free power records set in recent years.

Energy generation data is fetched from the Balancing Mechanism Reporting Service public feed, provided by Elexon – which runs the wholesale energy market – and is updated every five minutes, covering periods when wind led the power mix as well.

Elexon’s data does not include embedded energy, which is unmetered and therefore invisible to Great Britain’s National Grid. Embedded energy comprises all solar energy and wind energy generated from non-metered turbines. To account for these figures we use embedded energy estimates from the National Grid electricity system operator, which are published every 30 minutes.

Import figures refer to the net flow of electricity from the interconnectors with Europe and with Northern Ireland. A positive value represents import into the GB transmission system, while a negative value represents an export.

Hydro figures combine renewable run-of-the-river hydropower and pumped storage.

Biomass figures include Elexon’s “other” category, which comprises coal-to-biomass conversions and biomass combined heat and power plants.

Related News

• Electricity Forum News

• Power Generation News

Australia Electricity Supply Shortfall highlights AEMO's warning of reduced reserves as coal retirements outpace capacity, risking load shedding. Calls for 1GW strategic reserves and investment in renewables, storage, and dispatchable power in Victoria.

Key Points

It is AEMO's forecast of reduced reserves, higher outage risk, and a need for 1GW strategic backup capacity.

✅ Coal retirements outpacing firm, dispatchable capacity

✅ AEMO urges 1GW strategic reserves in Victoria and South Australia

✅ Investment needed: renewables, storage, grid and reliability services

Australia’s electricity operator has warned of threats to electricity supply including a shortfall in generation and reduced power reserves on the horizon.

The Australian Energy Market Operator (AEMO) has called for further investment in the country’s energy portfolio as retiring coal plants are replaced by intermittent renewables poised to eclipse coal, leaving the grid with less back-up capacity.

AEMO has said this increases the chances of supply interruption and load shedding.

It added the federal government should target 1GW of strategic reserves in the states most at risk – Victoria and South Australia, even as the Prime Minister has ruled out taxpayer-funded power plants in the current energy battle.

CEO of the Clean Energy Council, Kane Thornton, said the shortfall in generation, reflected in a short supply of electricity, was due a decade of indecisiveness and debate leading to a “policy vacuum”.

He added: “The AEMO report revealed that the new projects added to the system under the renewable energy target will help to improve reliability over the next few years.

“We need to accept that the energy system is in transition, with lessons from dispatchable power shortages in Europe, and long term policy is now essential to ensure private investment in the most efficient new energy technology and solutions.”

Related News

• Electricity Forum News

• Power Generation News

Grid Transformer Waste Heat Recovery turns substations into neighborhood boilers, supplying district heating via heat networks, helping National Grid and SSE cut emissions, boost energy efficiency, and advance low carbon, net zero decarbonization.

Key Points

Grid Transformer Waste Heat Recovery captures substation heat for district heating, cutting emissions and gas use.

✅ Captures waste heat from National Grid transformers

✅ Feeds SSE district heat networks for nearby homes

✅ Cuts carbon, improves efficiency, aligns with net zero

Thousands of homes could soon be warmed by the heat from giant electricity grid transformers for the first time as part of new plans to harness “waste heat” and cut carbon emissions from home heating.

Trials are due to begin on how to capture the heat generated by transmission network transformers, owned by National Grid, to provide home heating for households connected to district heating networks operated by SSE.

Currently, hot air is vented from the giant substations to help cool the transformers that help to control the electricity running through National Grid’s high-voltage transmission lines.

However, if the trial succeeds, about 1,300 National Grid substations could soon act as neighbourhood “boilers”, piping water heated by the substations into nearby heating networks, and on into the thousands of homes that use SSE’s services.

“Electric power transformers generate huge amounts of heat as a byproduct when electricity flows through them. At the moment, this heat is just vented directly into the atmosphere and wasted,” said Nathan Sanders, the managing director of SSE Energy Solutions.

“This groundbreaking project aims to capture that waste heat and effectively turn transformers into community ‘boilers’ that serve local heat networks with a low- or even zero-carbon alternative to fossil-fuel-powered heat sources such as gas boilers, a shift akin to a gas-for-electricity swap in heating markets,” Sanders added.

Alexander Yanushkevich, National Grid’s innovation manager, said the scheme was “essential to achieve net zero” and a “great example of how, taking a whole-system approach, including power-to-gas in Europe precedents, the UK can lead the way in helping accelerate decarbonisation”.

The energy companies believe the scheme could initially reduce heat network carbon emissions by more than 40% compared with fossil gas systems. Once the UK’s electricity system is zero carbon, and with recent milestones where wind was the main source of UK electricity on the grid, the heating solution could play a big role in helping the UK meet its climate targets.

The first trials have begun at National Grid’s specially designed testing site at Deeside in Wales to establish how the waste heat could be used in district heating networks. Once complete, the intellectual property will be shared with smaller regional electricity network owners, which may choose to roll out schemes in their areas.

Tim O’Reilly, the head of strategy at National Grid, said: “We have 1,300 transmission transformers, but there’s no reason why you couldn’t apply this technology to smaller electricity network transformers, too, echoing moves to use more electricity for heat in colder regions.”

Once the trials are complete, National Grid and SSE will have a better idea of how many homes could be warmed using the heat generated by electricity network substations, O’Reilly said, and how the heat can be used in ways that complement virtual power plants for grid resilience.

“The heavier the [electricity] load, which typically reaches a peak at around teatime, the more heat energy the transformer will be able to produce, aligning with times when wind leads the power mix nationally. So it fits quite nicely to when people require heat in the evenings,” he added.

Other projects designed to capture waste heat to use in district heating schemes include trapping the heat generated on the Northern line of London’s tube network to warm homes in Islington, and harnessing the geothermal heat from disused mines for district heating networks in Durham.

Only between 2% and 3% of the UK is connected to a district heating network, but more networks are expected to emerge in the years ahead as the UK tries to reduce the carbon emissions from homes, alongside its nuclear power plans in the wider energy strategy.

Related News

• Electricity Forum News

• Power Generation News

EU Electricity Market Reform seeks to curb gas-driven volatility by expanding CfDs and PPAs, decoupling power from gas, and aligning consumer bills with low-cost renewables and nuclear, as Brussels advances market redesign.

Key Points

An EU plan to curb price spikes by expanding long-term contracts and tying bills to cheap renewables.

✅ Expands CfDs and PPAs to lock in predictable power prices

✅ Aims to decouple bills from gas-driven wholesale volatility

✅ Seeks investment certainty for renewables, nuclear, and grids

European Union energy ministers meet on Monday to debate upcoming power market reforms. Brussels is set to propose the revamp next month, but already countries are split over how to "fix" the energy system - or whether it needs fixing at all.

Here's what you need to know.

POST-CRISIS CHANGES
The European Commission pledged last year to reform the EU's electricity market rules, after record-high gas prices - caused by cuts to Russian gas flows - sent power prices soaring during an energy crisis for European companies and citizens.

The aim is to reform the electricity market to shield consumer energy bills from short-term swings in fossil fuel prices, and make sure that Europe's growing share of low-cost renewable electricity translates into lower prices, even though rolling back electricity prices poses challenges for policymakers.

Currently, power prices in Europe are set by the running cost of the plant that supplies the final chunk of power needed to meet overall demand. Often, that is a gas plant, so gas price spikes can send electricity prices soaring.

EU countries disagree on how far the reforms should go.

Spain, France and Greece are among those seeking a deep reform.

In a document shared with EU countries, seen by Reuters, Spain said the reforms should help national regulators to sign more long-term contracts with electricity generators to pay a fixed price for their power.

Nuclear and renewable energy producers, for example, would receive a "contract for difference" (CfD) from the government to provide power during their lifespan - potentially decades - at a stable price that reflects their average cost of production.

Similarly, France suggests, as part of a new electricity pricing scheme, requiring energy suppliers to sign long-term, fixed-price contracts with power generators - either through a CfD, or a private Power Purchase Agreement (PPA) between the parties.

French officials say this would give the power plant owner predictable revenue, while enabling consumers to have part of their energy bill comprised of this more stable price.

Germany, Denmark, Latvia and four other countries oppose a deep reform, and, as nine EU countries oppose reforms overall, have warned the EU against a "crisis mode" overhaul of a complex system that has taken decades to develop.

They say Europe's existing power market is functioning well, and has fostered years of lower power prices, supported renewable energy and helped avoid energy shortages.

Those countries support only limited tweaks, such as making it easier for consumers to choose between fluctuating and fixed-price power contracts.

'DECOUPLE' PRICES?
The Commission initially pitched the reform as a chance to "decouple" gas and power prices in Europe, suggesting a redesign of the current system of setting power prices. But EU officials say Brussels now appears to be leaning towards more modest changes.

A public consultation on the reforms last month steered clear of a deep energy market intervention. Rather, it suggested expanding Europe's use of long-term contracts, outlining a plan for more fixed-price contracts that provide power plants with a fixed price for their electricity, like CfDs or PPAs.

The Commission said this could be done by setting EU-wide rules for CfDs and letting countries voluntarily use them, or require new state-funded power plants to sign CfDs. The consultation mooted the idea of forcing existing power plants to sign CfDs, but said this could deter much-needed investments in renewable energy.

RISKS, REWARDS
Pro-reform countries like Spain say a revamped power market will bring down energy prices for consumers, by matching their bills more closely with the true cost of producing lower-carbon electricity.

France says the aim is to secure investment in low-carbon energy including renewables, and nuclear plants like those Paris plans to build. It also says lowering power prices should be part of Europe's response to massive industrial subsidies in the United States and China - by helping European firms keep a competitive edge.

But sceptics warn that drastic changes to the market could knock confidence among investors, putting at risk the hundreds of billions of euros in renewable energy investments the EU says are needed to quit Russian fossil fuels under its plan to dump Russian energy and meet climate goals.

Energy companies including Engie (ENGIE.PA), Orsted (ORSTED.CO) and Iberdrola (IBE.MC) have said making CfDs mandatory or imposing them retroactively on existing power plants could deter investment and trigger litigation from energy companies.

POLITICAL DEBATE
EU countries' energy ministers discuss the reforms on Monday, before formal negotiations begin.

The Commission, which drafts EU laws, plans to propose the reforms on Mar. 14. After that, EU countries and lawmakers negotiate the final law, which must win majority support from European Parliament lawmakers and a reinforced majority of at least 15 countries.

Negotiations on major EU legislation often take more than a year, but some countries are pushing for a fast-tracked deal. France wants the law to be finished this year.

That has already hit resistance from countries like Germany, highlighting a France-Germany tussle over the scope of reform as they say deeper changes cannot be rushed through, and they would need an "in-depth impact assessment" - something the Commission's upcoming proposal is not expected to include, because it has been drafted so quickly.

The timeline is further complicated by European Parliament elections in 2024. That has raised concerns in reform-hungry states that failure to strike a deal before the election could significantly delay the reforms, if negotiations have to pause until a new EU parliament is elected.

Related News

• Electricity Forum News

• Energy Policy News

Gaza Electricity Crisis drives severe power cuts in the Gaza Strip, as Hamas-PA tensions and Mahmoud Abbas's supply reductions under blockade spur fuel shortages, hospital strain, and soaring demand for batteries, LED lights, and generators.

Key Points

A prolonged Gaza power shortage from politics, blockade, and fuel cuts, disrupting daily life, hospitals, and water.

✅ Demand surges for batteries, LED lights, and generators

✅ PA cuts to Israel-supplied power deepen shortages

✅ Hospitals, water, and sanitation face critical strain

In Imad Shlayl’s electronics shop in Gaza City, the customers crowding his store are interested in only two products: LED lights and the batteries to power them.

In the already impoverished Gaza Strip, residents have learned to adapt to the fact that electricity is only available for between two and four hours a day.

But fresh anger was sparked when availability was cut further last month, at the request of the Palestinian president, Mahmoud Abbas, in an escalation of his conflict with Hamas, the Islamist group.

The shortages have defined how people live their lives, echoing Europe’s energy crisis in other regions: getting up in the middle of the night, if there is power, to run washing machines or turn on water pumps.

Only the wealthy few have frequent, long-lasting access to electricity, even as U.S. brownout risks highlight grid fragility, to power lights and fans and fridges, televisions and wifi routers, in Gaza’s stifling summer heat.

“We used to sell all sorts of things,” says Shlayl. “But it’s different these days. All we sell is batteries and chargers. Because the crisis is so deep we are selling 100 batteries a day when normally we would sell 20.”

Gaza requires 430 megawatts of power to meet daily demand, but receives only half that. Sixty megawatts are supplied by its solitary power station, now short on fuel, while the rest is provided through the Israel’s power sector and funded by Abbas’s West Bank-based Palestinian Authority (PA).

Abbas’s move to cut supplies to Gaza, which is already under a joint Israeli and Egyptian blockade – now in its 11th year – has quickly made him a hate figure among many Gazans, who question why he is punishing 2 million fellow Palestinians in what appears to be an attempt to force Hamas to relinquish control of the territory.

Though business is good for Shlayl, he is angry at the fresh shortages faced by Gazans which, as pandemic power shut-offs elsewhere have shown, affect all areas of life, from hospital emergency wards to clean water supplies.

“I’ve not done anything to be punished by anyone. It is the worst I can remember but we are expecting it to get worse and worse,” he said. “Not just electricity, but other things as well. We are in a very deep descent.”

As well as cutting electricity, the PA has cut salaries for its employees in Gaza by upwards of 30% , prompting thousands to protest on the streets of Gaza city.

Residents also blame Abbas for a backlog in processing the medical referral process for those needing to travel out of Gaza for treatment, although who is at fault in that issue is less clear cut.

The problems facing Gaza – where high levels of unemployment are endemic – is most obvious in the poorest areas.

In Gaza City’s al-Shati refugee camp, home to the head of Hamas’s political bureau, Ismail Haniyeh, whole housing blocks were dark, while in others only a handful of windows were weakly illuminated.

In the one-room kiosk selling pigeons and chickens that he manages, just off the camp’s main market, Ayman Nasser, 32, is sitting on the street with his friends in search of a sea breeze.

His face is illuminated by the light of his mobile phone. He has one battery-powered light burning in his shop.

“Part of the problem is that we don’t have any news. Who should we blame for this? Hamas, Israelis, Abbas?” he said.

 A Palestinian girl reads by candle light due to power cut at the Jabalia Camp in Gaza City
Facebook Twitter Pinterest
 A Palestinian girl reads by candlelight due to a power cut at the Jabalia camp in Gaza City. Photograph: Anadolu Agency/Getty Images
His friend, Ashraf Kashqin, interrupts: “It is all connected to politics, but it is us who is getting played by the two sides.”

If there is a question that all the Palestinians in Gaza are asking, it is what the ageing and remote Abbas hopes to achieve, a dynamic also seen in Lebanon’s electricity disputes, not least whether he hopes the cuts will lead to an insurrection against Hamas following demonstrations linked to the power supply in January.

While a senior official in the Fatah-led government on the West Bank said last month that the aim behind the move by the PA – which has been paying $12m (£9m) a month for the electricity Israel supplies to Gaza – was to “dry up Hamas’s financial resources”, others are dubious about the timing, the motive and the real impact.

Among them are human rights groups, such as Amnesty International, who have warned it could turn Gaza’s long-running crisis into a major disaster already hitting hospitals and waste treatment plants.

“For 10 years the siege has unlawfully deprived Palestinians in Gaza of their most basic rights and necessities. Under the burden of the illegal blockade and three armed conflicts, the economy has sharply declined and humanitarian conditions have deteriorated severely. The latest power cuts risk turning an already dire situation into a full-blown humanitarian catastrophe,” said Magdalena Mughrabi, of the group.

Then there is the question of timing. “Abbas is probably the only one who knows why he is doing this to Gaza,” adds Mohameir Abu Sa’da, a political science professor at Al Azhar University and analyst.

“I honestly don’t buy what he has been saying for the last three months: that he will take exceptional measures against Hamas to put pressure on it to give up control of the Gaza Strip.

Related News

• Electricity Forum News

• Energy Policy News

IVECO BUS hydrogen and electric buses in France accelerate clean mobility, zero-emission public transport, fleet electrification, and fuel cell adoption, with battery-electric ranges, fast charging, hydrogen refueling, lower TCO, and high passenger comfort in cities.

Key Points

Zero-emission buses using battery-electric and fuel cell tech, cutting TCO with fast refueling and urban-ready range.

✅ Zero tailpipe emissions, lower noise, improved air quality

✅ Fast charging and rapid hydrogen refueling infrastructure

✅ Lower TCO via reduced fuel and maintenance costs

IVECO BUS is making significant strides in the French public transportation sector, recently securing contracts for the delivery of hydrogen and battery electric buses. This development underscores the growing commitment of cities and regions in France to transition to cleaner, more sustainable public transportation options, even as electric bus adoption challenges persist. With these new contracts, IVECO BUS is poised to strengthen its position as a leader in the electric mobility market.

Expanding the Green Bus Fleet

The contracts involve the supply of various models of IVECO's hydrogen and electric buses, highlighting a strategic shift towards sustainable transport solutions. France has been proactive in its efforts to reduce carbon emissions and promote environmentally friendly transportation. As part of this initiative, many local authorities are investing in clean bus fleets, which has opened up substantial opportunities for manufacturers like IVECO.

These contracts will provide multiple French cities with advanced vehicles designed to minimize environmental impact while maintaining high performance and passenger comfort. The move towards hydrogen and battery electric buses reflects a broader trend in public transportation, where cities are increasingly adopting green technologies, with lessons from TTC's electric bus fleet informing best practices to meet both regulatory requirements and public demand for cleaner air.

The Role of Hydrogen and Battery Electric Technology

Hydrogen and battery electric buses represent two key technologies in the transition to sustainable transport. Battery electric buses are known for their zero tailpipe emissions, making them ideal for urban environments where air quality is a pressing concern, as demonstrated by the TTC battery-electric rollout in North America. IVECO's battery electric models come equipped with advanced features, including fast charging capabilities and longer ranges, making them suitable for various operational needs.

On the other hand, hydrogen buses offer the advantage of rapid refueling and extended range, addressing some of the limitations associated with battery electric vehicles, as seen with fuel cell buses in Mississauga deployments across transit networks. IVECO’s hydrogen buses utilize cutting-edge fuel cell technology, allowing them to operate efficiently in urban and intercity routes. This flexibility positions them as a viable solution for public transport authorities aiming to diversify their fleets.

Economic and Environmental Benefits

The adoption of hydrogen and battery electric buses is not only beneficial for the environment but also presents economic opportunities. By investing in these technologies, local governments can reduce operating costs associated with traditional diesel buses. Electric and hydrogen buses generally have lower fuel costs and require less maintenance, resulting in long-term savings.

Furthermore, the transition to cleaner buses can help stimulate local economies. As cities invest in electric mobility, new jobs will be created in manufacturing, maintenance, and infrastructure development, such as charging stations and hydrogen fueling networks, including the UK bus charging hub model, which supports large-scale operations. This shift can have a positive ripple effect, contributing to overall economic growth while fostering a cleaner environment.

IVECO BUS's Commitment to Sustainability

IVECO BUS's recent successes in France align with the company’s broader commitment to sustainability and innovation. As part of the CNH Industrial group, IVECO is dedicated to advancing green technologies and reducing the carbon footprint of public transportation. The company has been at the forefront of developing environmentally friendly vehicles, and these new contracts further reinforce its leadership position in the market.

Moreover, IVECO is investing in research and development to enhance the performance and efficiency of its electric and hydrogen buses. This commitment to innovation ensures that the company remains competitive in a rapidly evolving market while meeting the changing needs of public transport authorities.

Future Prospects

As more cities in France and across Europe commit to sustainable transportation, including initiatives like the Berlin zero-emission bus initiative, the demand for hydrogen and battery electric buses is expected to grow. IVECO BUS is well-positioned to capitalize on this trend, with a diverse range of products that cater to various operational requirements.

The successful implementation of these contracts will likely encourage other regions to follow suit, paving the way for a greener future in public transportation. As IVECO continues to innovate and expand its offerings, alongside developments like Volvo electric trucks in Europe, it sets a precedent for the industry, illustrating how commitment to sustainability can drive business success.

Related News

• Electricity Forum News

• EV Infrastructure News