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The Herald Scotland
12 hours ago
- Business
- The Herald Scotland
Does Scotland really need more offshore wind farms?
Often critics will say there are already enough onshore wind, but what does that mean? And is that really seen in the figures? The claims are examined here, as well as key issues like constraint payments and why so many of the UK's onshore wind farms are in Scotland. Claim: Scotland is already producing more electricity than it needs Yes. Electricity transfers data show that Scotland exported 21.0 TWh of electricity and imported 1.3 TWh of electricity in 2024. This means that Scotland's net exports of electricity (exports minus imports) in 2024 was 19.7 TWh. In 2024, Scotland generated a record 38.4 terawatt hours (TWh) of renewable electricity, suggesting that it exported around half. Claim: Scotland already has enough onshore wind capacity to meet its total electricity 2050 demand. Currently, according to DESNZ, Scotland has an onshore wind capacity of 10GW, and a gross peak demand of 4GW. However, NESO, in its Ten Year Statement estimates gross peak demand for Scotland in 2050 at between 8.5GW and 11GW depending on what degree of electrification takes place. 'Over the next 10 years,' it says, 'rapid growth in renewable -generated electricity in Scotland will mainly be attributed to offshore wind. This will cause far greater power transfer requirements across the Scottish boundaries, increasing the network reinforcement needs in some areas. Generation capacity in Scotland heavily exceeds demand, thus Scotland will be expected to export power into the rest of Great Britain most of the time except during periods of prolonged low wind, where the reverse may occur.' Graph of Scotland's gross electricity demand from NESO's Ten Year Statement (Image: NESO) However, in a renewable system, where generation is intermittent, capacity needs to be significantly higher than peak demand. Since there are, as yet, no target figures for Scotland's wind generation for 2050 – though overall, according to the Climate Change Committee's Seventh Carbon Budget, UK is aiming for 125GW offshore wind, 27GW onshore wind and 106GW solar- it's hard to know by how much Scotland is likely to exceed its own demand. Claim: Scotland already has enough wind consented and in planning for 2030 or 2035 One Caithness-bsed campaigner who has looked at the figures, is Kathrin Haltiner, who says, 'For the whole of Scotland for 2030 and even to 2035, what is already in the planning system, without any scoping applications, is more than enough to reach these caps and these caps are important because anything that goes over these caps is not going to help with net zero.' In a recent analysis she writes about the North of Scotland, noting that the Clean Power Action Plan 'caps onshore wind farm development for North Scotland at 9GW for 2030 and only adds a very small capacity increase for the whole of Scotland until 2035. Clearly SSEN's ambitions are oversized.' 'North Scotland already has 6.3GW of additional onshore wind farm capacity in the pipeline: 0.2GW under construction, 3.2GW consented and awaiting construction, and 2.9GW in planning (excluding projects only at scoping stage). "Together with the already built 3.8GW the potential capacity in North Scotland is 10.1GW, that is 1.1GW over the capacity advised in the Clean Power 2030 Action Plan. This means consents can be given more selectively from now on. The urgency used as an argument from developers to get a consent does not hold up anymore.' Do these figures stack up? What is current onshore wind capacity According to DESNZ, at the end of last year Scotland had an installed onshore wind capacity of 10.3GW of onshore wind. Haltiner came up with a slightly different figure when she added up all the operational capacity in the Renewable Energy Projects Database, making 9.4GW. This is also the figure I got when I did the same calculation. How much more is already in the process of being built? While recent official totals haven't been published, it is possible to total up the projects categorised as under construction on the Renewable Energy Planning Database, giving a figure for onshore wind under construction in Scotland of 1.7GW. A further list of projects consented to, but awaiting construction, totals 5.4GW. All together that's 7.1GW already underway. What about projects that are already in the planning process? Again, data in the REPD gives us an idea of what is a live planning application, as well as those projects that have been abandoned, refused or withdrawn. Kathrin Haltiner has totalled these up to 8.1GW. How does this compare with the cap for Scotland for electricity generation for 2030? The Clean Energy Action Plan, in its update on its annex, states that Scotland, as whole, has a cap for electricity generation for 2030 of 20.5GW. This is a massive leap from the current estimate of 10.3GW, and even more from the 9.4GW in the REPD. But are we nevertheless, as Kathrin Haltiner, suggests already in danger of exceeding it? According to Haltiner's calculations, if we add already operational wind to all the wind farms already under construction and consented to is, for the North of Scotland, 1.1GW greater than the sum of all onshore wind projects that are operational, in construction, consented to and in the planning system. For South of Scotland, the equivalent total is 2.5GW more than the 11.5GW cap. But the question remains, how many of those projects will make it through planning and become final operational projects? Another way of looking at it is that if, across Scotland, we already have 16.5GW already in operation, in construction or consented to, leaving only 4GW still to take up. But there are actually twice as many (8.1GW) of projects sitting in the planning system and not all of those can happen. Of course, some of those may, in any case, be withdrawn, some projects will be abandoned, others reduced, and some, even from the list of projects awaiting construction may not even happen. Others may not happen within the timeframe. Does that mean we are set to have much onshore wind for current caps? No, but in the unlikely event that every project that is sitting in planning were to be built Scotland would significantly exceed its cap. These figures suggest that only half of these projects can happen. Is it a reason to slow down? Not according to Scottish Renewables. Their director of onshore, Morag Watson put it this way, with different but similar figures - actually suggesting that even less of the projects currently in planning will be needed by 2030, but noting the need for continued urgency. 'Scotland has to increase its onshore wind capacity from 10GW to 20GW in about five years. In Scotland at the moment in the pipeline of projects that are consented but not yet built, we have 7.5 GW. So we need everything in the pipeline and just over 2 GW more. So this idea we have too much wind already is just not borne out by the strategic plans.' She also points out that the process of going through scoping, planning and constructing a wind farm can be long. 'Viking windfarm on Shetland, that was a 15 year process to make the needs case for that. Renewable projects can wait up to ten years for a grid connection and you only get a connection to the grid when it's needed.' 'A project can go through the planning system, but just because they have planning permission doesn't mean they are about to get built and connected to the grid. Post planning they'll get a grid connection date and they will work to that grid connection date as to when they start building.' Mostly Watson notes, the strategy up till 2030 is about reducing our dependency on gas, which is not only responsible for significant carbon emissions, but also, through its high price, drives up electricity bills. By 2030, the goal is to reduce the amount of gas used to generate electricity down to about 5% on the system. She says: 'At the moment it's about taking the gas and other fossil fuel generation off the system – replacing it with renewables because they are cheaper and more reliable in terms of pricings that you pay. ' Is there also enough in the pipeline for 2035? 'Post 2030,' Morag Watson explains, 'what we start to see is the electrification of transport and heat really accelerating. That's when you see electricity demand really grow." The next milestone and cap along the way is 2035, and what's striking is how little more capacity – just 700MW – is being allocated to Scotland over that period. This is a tiny fraction of what Scotland has already built and is set to achieve in the next five years. Scotland's offshore wind industry has already flagged that up as a problem. A group of 13 developers signed an open letter to UK Energy Secretary Ed Miliband amid concerns of a 'de-facto ban' on Scottish onshore wind post-2030. Earlier this year a group of In the letter, they stated: 'Currently, the cap in the Plan will allow only 700MW of additional Scottish onshore wind capacity to connect between 2031 and 2035. 'This would result in a decrease in the rate of installations allowed after 2030 of over 90%, and amounts to a de-facto ban on Scottish onshore wind post-2030. What anti-wind farm campaigners see as ammunition for the argument that less windfarms should be consented, the industry itself is seeing as a threat, and reason to push for more capacity – but that capacity is determined by the grid, and therefore. Claim: Scotland is already doing more than its fair share of onshore wind Last year, Scotland, according to RenewablesUK, was operating 63% of the UK's onshore wind capacity. By 2030 Scotland will be producing 20.5GW of power, well over two thirds of the onshore wind generation in the UK, which is set at 27-29GW. As this map shows, Scotland is doing a lot of the heavy lifting when it comes to onshore wind. Partly this is because previously England had a de facto ban on onshore wind developments. But there are, as Morag Watson told me, other factors that feed in to why Scotland, in any case, is getting most of the wind. 'The reason for this is you can only put onshore wind where the wind consistently blows at 7ms or faster and there are chunks of England where that doesn't happen. You cannot build a wind turbine within 800m of someone's home, or with the bigger turbines, within 1km of someone's home. "So if you take a map of the UK and take out everywhere where the wind is less than 7 m/s and then take out everywhere where you're within 800 m of someone's home, and then remove National Parks and national scenic areas, where you also cannot build wind, and again is why you don't see onshore wind predominantly down the west coast an central of Scotland, the only places you can build onshore wind are these parts of Scotland and mid Wales. This is why Scotland does do the heavy lifting on onshore wind.' But, she notes, England is doing most of the heavy lifting on solar. Unsurprisingly, the south of England, where the sun is stronger, is also where there are more solar developments. Why are wind farms so concentrated in the North East and Lanarkshire? Wind farms tend to be where the grid is, so they can connect to them – and hence pattern of distribution across Scotland follows those powerlines. There is very little transmission infrastructure down the west coast of Scotland, which means relatively few turbines there. It's often said that onshore wind developments in rural areas of Scotland are producing electricity for the cities to the south and England. But Morag Watson says, 'What is being built onshore in Scotland, is mostly what Scotland needs.' The overhead powerline system, she points out, is not just about delivering energy to the south, but also about sending off connections along the way to power homes and transport in the areas the lines pass through. Claim: Constraint payments are already costing millions and only going to rise – suggesting there is already too much onshore wind A report published earlier this year by the Renewable Energy Foundation found that wind farm constraints continue to rise, both in total volume and in cost. In 2024 the consumer paid more than £393 million in direct costs to discard 8.3 TWh of wind energy. This was a rise from the previous year's cost of £310 million. "Planning application data," the report said, 'shows that the, in our view, indefensibly high rewards for constraints continue to incentivise wind farm development in areas of the UK that have low demand and weak grid connection, resulting in high constraints. More than 98% of the total constrained volume, it noted, arises from Scottish wind farms. However, by far the biggest constraints wereapplied not to onshore wind, but offshore wind, including Seagreen. 'In particular, the offshore wind farm, Seagreen, whose majority owner is SSE, was alone responsible for 40% of the total volume of constraints. Seagreen is currently unsubsidised but 25% of its capacity has been awarded an as yet unimplemented Contract for Difference (CfD).' The most constrained onshore windfarms were Viking (Shetland), Dorenell (Moray), which is currently proposing an extension which would make the area home to the largest onshore array of turbines, Stronelairg (Fort Augustus), which claims to be on of Scotland's windiest windfarms, Bhlaraidh (Glenmoriston). Of these four, all but Dorenell are owned by SSE Renewables. However, Morag Watson points out that, relative to other impacts on electricity bills, like the fact gas prices set electricity prices 98% of the time in the UK (which has the highest electricity prices in Europe), the cost of curtailment is not that big. 'If you look," she saas, "at the cost of balancing the grid in the average electricity bill, which according to Ofgem is £929, £32 of that is the balancing, just under 3.5% and of that only part of that would be the cost of constraint payments. That's a vanishingly small part of your electricity bill. About £352 of your bill is driven by the wholesale cost of electricity – and that is driven by the gas price. So getting rid of the constraints and getting that gas down would be a really great thing for all of us.' Part of what is driving constraints is the pinch point around what's called the B6 boundary in the grid between Scotland and England, which has a theoretic transfer capability currently of around 6.7 GW. But it isn't the only problem. Arguably the B4 boundary, between the North of Scotland and South of Scotland transmission areas, which has a capacity of only 3.4GW is still more important. A recent blog published by UK Energy Research Centre, written by Professor Keith Bell and Callum MacIver of the University of Strathclyde looked at the 'impact of the role of transmission system availability (or rather unavailability) on rising curtailment costs in Britain'. They noted the importance of the B4 boundary. 'Lots of the wind in Scotland is located in the far North, including all of that new capacity from Seagreen, Viking and Moray East, totalling around 2.5 GW. The B4 boundary is therefore often the primary pinch point on the system.' The blog examines the impact of the failure to as yet build planned grid enhancement, especially the Peterhead to Drax undersea cable, which the system operator originally gave a delivery date of 2023, but is now not due till 2029. 'It seems clear we haven't built out enough North to South transmission capacity quickly enough, and that lies at the root of our current issues… but is there more to the story?' It goes on to point that an additional issue is that 'often, the real-time capacity on the B4 and B6 boundaries is well below the maximum level, often even below 50%.' The authors note also note that even these boundaries are not working to capacity. 'Not only have we, up to now, failed to add a 2 GW link across the congested Scottish boundaries, but B4 spent more than half of 2024 with an additional equivalent scale 2 GW reduction in operating capacity.' The reason for this? 'Ironically,' they write, 'it is due to the implementation of network upgrades'. This illustrates that in a grid undergoing significant works over the coming years, transmission is likely to vary. MacIver also looked at what the effect of additional network capacity across the B4 and B6 boundaries would have been and found that 'even a modest increase' across these boundaries of 500MW could have resulted in 'reduced curtailment costs by as much as 25% from the £1.65bn total in the 15 month period from the start of 2024 to the end of April 2025' and 'a 2000 MW uplift, in line with delivering the Peterhead Eastern Link project to its original schedule of 2023, then a full 73% of the thermal constraint costs could potentially have been avoided'. Overall, therefore, the constraint problem is an argument for more grid enhancement, particularly the development of undersea links, rather than less windfarms.
Reuters
3 days ago
- Business
- Reuters
Britain will have enough energy supply this winter, grid operator says
LONDON, June 18 (Reuters) - Britain's National Electricity System Operator said on Wednesday it expects to have sufficient supplies this winter, giving an early outlook of the supply and demand balance for the season. The growth in battery storage capacity on the electricity network systems, more available gas-fired power generation, more renewable energy and the commissioning of the Greenlink electricity interconnector between Ireland and Wales have increased the amount of power available. "Our early view of the winter ahead shows a positive outlook with sufficient margins throughout the colder winter months," said Deborah Petterson, NESO's director of resilience and emergency management. The NESO expects a de-rated margin, which is a measure of the amount of excess capacity expected above peak electricity demand, at 6.6 gigawatts (GW). That is the highest forecast margin since the 2019/20 winter period and is over 1 GW higher than last year's winter outlook figure of 5.2 GW. This assumes total electricity demand of 60.5 GW. There could be some days when supply is tight, likely to occur in early December or mid-January, but NESO said it has tools in place such as market notices for backup generation to be made available. The full winter outlook will be published in October.
The Herald Scotland
4 days ago
- Business
- The Herald Scotland
Energy bills swollen by Scottish windfarm switch off costs
However, critics focused on the revelation that the Westminster administration planned to use £2.5bn allocated to the fledgling Great British Energy operation to fund work on a new generation of small modular nuclear reactors. SNP supporters slammed the move which they claimed would leave a big hole in the £8.3bn budget that GB Energy had promised would be used to support the development of technologies such as floating offshore wind and tidal energy. Keir Starmer decided to put the official headquarters of GB Energy in Aberdeen to mollify critics of his cabinet's decision to curb oil and gas activity. But the SNP Government has opposed North Sea field developments that could create thousands of jobs. It has pinned its hopes on the expansion of wind power, which acting climate change minister Alasdair Allan claimed recently could create thousands of high-quality jobs in support of a just transition from dependence on oil and gas. The number of renewables jobs created in Scotland, however, has fallen below expectations for years. READ MORE: Just transition furore reignited as SNP Government flounders Mr Allan put the onus on the UK Government to help accelerate windfarm development in Scotland by improving the support provided for developers under the flagship Contracts for Difference programme. Energy secretary Ed Miliband has held out the prospect that the budget for the forthcoming CfD allocation round will be much bigger than the £1.6bn set for the last one. The costs will be added to the bills of householders regardless of their income. But figures from the body that regulates the national energy system show bill payers have reason to be concerned about the wisdom of accelerating a programme that imposes costs on them that many can't afford. The National Energy System Operator revealed that the size of the bill it has to pay to deal with supply issues stemming from the fact that output from renewables such as windfarms is intermittent soared to £2.7bn in the latest year from £2.5bn in the preceding period. The balancing payments include amounts that NESO pays to compensate windfarm operators that are asked to constrain generation when there is insufficient demand. They also include payments made to operators of gas fired power stations to increase output when there is not enough wind power to meet energy requirements. READ MORE: Israeli-owned firm takes control of UK's biggest gas field NESO said the increase was driven by a rise in constraint costs and made clear that this was largely due to the fact that so much windfarm capacity has been added in Scotland although demand is much higher south of the border. 'Whilst payments to generators are distributed throughout the country the cause of cost is concentrated in Scotland,' it said. The organisation underlined the absurdity of the situation we find ourselves in after rushing to develop windfarms without ensuring the required infrastructure was in place to transport the power produced to where it is needed or to store it. The Seagreen windfarm off the Angus coast became fully operational in 2023 (Image: SSE) Noting that wind curtailment is currently a major driver of balancing costs, NESO said: 'This is because a large proportion of wind capacity in GB is connected in Scotland, which at present is a constrained region of the network. 'This means that when wind generation is high we must take actions to turn down wind output and turn on replacement energy in unconstrained regions to keep the system balanced.' The NESO report emphasises that the costs resulting from this situation fall on householders. In 2024/25 balancing charges added around £3 a month to a typical domestic electricity bill. That may not sound much but household bills are also inflated by other charges such as those related to CfDs and the Climate Change Levy. NESO's analysis indicates that developing more windfarms will make things worse for the time being. It warned: 'Balancing costs are expected to rise in the short term, reaching a peak of ~£8bn in 2030.' Part of the solution will involve a massive expansion of electricity transportation networks in the face of potential opposition from locals in areas affected and of storage facilities. However, energy giants such as SSE and Drax have made clear they will only make the hefty investment required to develop hydro storage facilities if the UK Government provides enough support for revenues to ensure they can generate strong returns. READ MORE: Scottish hydropower hopes fade amid threats to bumper projects This all means that power generation assets that can ensure the country can keep the lights on irrespective of weather conditions will be required for years. The case for SSE to be allowed to develop a new gas fired power station at Peterhead has been strengthened after the UK Government agreed to provide £200m initial development funding for the Acorn carbon capture scheme. This will take emissions from the plant for storage in depleted reservoirs in the North Sea. Friends of the Earth Scotland insists the Peterhead plant would be a climate disaster and has berated the Scottish Government for failing to properly interrogate SSE's assurances about related emissions. The organisation is bitterly opposed to plans for the Scottish carbon capture cluster which it reckons could be used to excuse continued production of oil and gas. The SNP Government, however, has spent years pressing UK ministers to fund the Scottish cluster, which could cost around £12bn to develop in full. Scottish Gas owner Centrica recently underlined the scale of expected demand for gas by agreeing a £20 billion deal to secure supplies from Norway until 2035. That deal may have been timely as oil and gas prices have soared in the wake of Israel launching attacks on Iran last week. READ MORE: SNP Government oil hypocrisy shocking amid Scottish jobs cull Against that backdrop it makes sense for the UK to maximise production of its own oil and gas. The case for investing in nuclear plants that can provide baseload power is also reinforced by concerns about the UK's dependence on imports of oil and gas. Nuclear plants take years to develop but could remain operational for decades. Add in the fact that work on a plant could create thousands of construction jobs and many more in the supply chain and it is little wonder the SNP Government is under pressure from trades unions to abandon its opposition to the development of nuclear power stations in Scotland.
Business Mayor
14-05-2025
- Business
- Business Mayor
Can Britons be persuaded to switch off when the wind doesn't blow?
At home in Sunderland, north-east England, Walt Scales and wife Alexis try to finish their washing and cooking by 5pm. Ovo Energy, their electricity supplier, enters them into a prize draw for cutting usage from the mains supply between 5pm and 7pm on weekdays. For the retired bus driver, who switches to a small household battery for essentials in the evening, the benefits are more than financial. 'It means we can relax totally from 5pm, so it's kind of enriched [our lives]. There's more time for each other,' he said. The couple are responding to a push by energy companies and officials to encourage households and businesses to change their habits and adjust electricity use according to supply, as part of the government's goal of decarbonising the electricity system by 2030. This could mean avoiding peak times, such as the teatime rush, or using more power at times of high wind. Along with zonal electricity pricing, it is one way to lessen the amount of new grid capacity that needs to be built and potentially keep costs down. New tariffs, trials and schemes are under way around the country, and the National Energy System Operator wants to see up to five times the current level of flexible power demand in order to meet the national 2030 clean power target. But NESO concedes there are a 'broad range of views' about the feasibility of that goal, which will require technological and commercial developments — and big changes for consumers. 'I think it [demand flexibility] has to happen,' said Laura Sandys, chair of the Green Alliance and board member at EV charging company Ohme Global. '[But] it's probably the most complex part of the jigsaw. This is all about customers.' Walt Scales switches to a small household battery for essentials in the evening © Ian Forsyth/FT Consumers have been encouraged to use electricity outside of peak hours for decades, through 'Economy 7' tariffs offering cheaper power at night, or lower network charges for factories outside peak times. But the idea is taking on more importance given the effort to shift away from fossil fuels, which involves moving from petrol cars and gas-fired boilers to electric cars and heat pumps powered by renewable electricity. Electricity supply and demand have to be matched second by second to maintain system stability. But unlike coal and gas-fired power plants, wind and solar farms depend on the weather and cannot be so easily controlled in line with consumer needs. Demand needs to adjust instead. Excess power can be stored in the form of batteries or hydropower plants, ready to be discharged when needed. But officials believe households and businesses adjusting their behaviour could also help, by, for example, charging electric cars when it is sunny and windy, or turning down industrial freezers when it is not. This is the second part in a series on the future of Britain's electricity grid Spreading demand across the day could also cut the investment required in electricity networks, since they would not have to cope with such heavy peak loads. British wind farms often have to switch off if they are producing more than consumers can use at that time, owing to a lack of grid capacity. 'Flexibility services are crucial for transitioning to a net zero network,' said Northern Powergrid, which serves swaths of northern England. The Berkshire Hathaway-owned company has been offering up to £900 per megawatt hour — more than 10 times the typical rate for electricity bought a day ahead — for business and household consumers to shift their consumption when needed. UK Power Networks, which serves London and south-east England, said it had 100,000 'assets' registered on its network whose demand can be increased or reduced as needed. The network companies' offerings come on top of NESO's national voluntary 'demand-flexibility service', under which households are paid to cut electricity use if a shortage looms. Introduced at the height of the energy crisis in winter 2022, the scheme was initially popular, but critics fear the recent removal of a guaranteed payment level will dent enthusiasm. 'Customers [need] to see and feel good value from doing this,' said Kieron Stopforth, head of flexibility at Octopus Energy, the UK's largest household energy supplier. 'A bit of funding early on can help seed growth.' Octopus and other companies offer or are developing time-of-use tariffs where prices incentivise consumers to respond to constant fluctuations in supply, boosted by market reforms and the rollout of smart meters, which are in about 60 per cent of homes. Combined with plans for regional electricity pricing, the tariffs could lead to consumers in Scotland charging their cars very cheaply when it is windy in the North Sea. The time-of-use model has many enthusiastic proponents. 'Essentially, my fuel for the car is two pence per mile,' said Tesla owner Iain Turner, a customer of Octopus's Intelligent Go tariff. He also sets his washing machine, tumble dryer and, in the summer, swimming pool pump to come on at night. 'About 50-60 per cent of my electricity is now at a cheap rate,' added the Colchester resident. Yet there is also the risk of consumers missing out on benefits if they are less engaged, or get caught out by surge pricing, the flip side of some tariffs offering ultra-cheap electricity at certain times. 'Overall we see [flexibility] as an opportunity for consumers,' said Andy Manning, head of energy systems transformation at consumer watchdog Citizens Advice. '[But] it needs to be underpinned by effective protections [for them].' Industrial users' appetite for shifting their electricity use varies. Some factories are already running power-hungry machinery during brief spells of negative electricity prices triggered by surges in supply. But dialling up and down is not always suitable because it can damage equipment. Getting users on board is not the only challenge. A study in November of 900 homes, 408 of which had electric vehicles or an electric vehicle charger, showed their electricity demand peaked in the middle of the night when cheap overnight tariffs kicked in. 'There's a certain critical mass where you've created a peak somewhere else through herding behaviour,' said Claire Rowland, at Energy Systems Catapult, a government-backed research and technology organisation, that carried out the study. Iain Turner sets his car, washing machine, tumble dryer and swimming pool pump to come on at night © Daniel Jones/FT Trials are also under way to see whether households can be flexible about when they run heat pumps. That could involve switching them on a few hours before they come home and then off during peak times, relying on the home to hold warmth for a few hours. In a survey at the end of a trial run by National Grid and others last year, known as Equinox, about half of the participants reported discomfort 'sometimes' for themselves or other household residents from using power more flexibly. But almost all — 91 per cent — said this was 'mild'. The University of Wales Trinity St David, Lampeter, has installed technology that automatically turns down electric heating in students' rooms when the local network provider is looking for electricity savings. Dan Priddy, head of sustainability at the university, said it might be rolled out further, but noted 'we wouldn't want it to come on midway during a washing [machine] cycle'. Voltalis, the French company behind the technology, has said it plans to invest £1bn in Britain by 2030, following market reforms last year that allow aggregators to be paid for saving, rather than generating, electricity. Randall Bowen, managing director in the UK for Voltalis, said: 'The opportunity is greater in the UK than we've seen in other countries.' Despite many uncertainties Scales, whose prize draw entries could win him a year's worth of free energy, is happy to be at the forefront of a changing system. 'I never stop talking about it,' he said. 'It's important that people pay attention to national consideration.' Data visualisation by Janina Conboye
Straits Times
08-05-2025
- General
- Straits Times
Cause of Heathrow shutdown fire still unknown, initial report says
People work at an electrical substation, after a fire there wiped out the power at Heathrow International Airport, in Hayes, London, Britain, March 21, 2025. REUTERS/Isabel Infantes/File Photo LONDON - The cause of the fire at an electricity substation that forced Britain's Heathrow Airport to shut down for almost a day remains unknown, the National Energy System Operator said in an interim report on Thursday. The closure of Heathrow, the busiest airport in Europe, on March 21 cost airlines tens of millions of pounds and stranded thousands of passengers. It also raised questions about the resilience of Britain's infrastructure. NESO, which manages the country's electricity network, said it would produce a final report on the outage in June, with recommendations on the resilience of energy systems and plans for response and restoration. The police said in March the fire was not suspicious. London Fire Brigade and National Grid Electricity Transmission continue to conduct forensic investigations into the cause of the fire, NESO said in the interim report. The outage prompted scrutiny from the government, airlines and passengers, who asked why all of Heathrow's four terminals had to shut and why it took 18 hours for power to be restored. Heathrow said it hoped the final report would provide answers on the cause of the fire. "Further clarity on how the fire started and why two transformers were subsequently impacted can help ensure greater resilience for the UK's energy grid moving forward," the airport said in a statement. REUTERS Join ST's Telegram channel and get the latest breaking news delivered to you.
