Climate
Majority of Welsh adults open to solar – but myths blocking the sunshine savings
New Energy Saving Trust poll highlights opportunity and confusion over solar installations in Wales
AS the summer solstice nears, bringing the longest day of the year, a new survey by the Energy Saving Trust reveals that more than half of adults in Wales would consider installing solar panels—if cost weren’t a barrier.
In 2024 alone, over 15,000 new solar systems were installed across Wales. Yet despite rising interest, many still hesitate, with confusion over costs and effectiveness shading potential savings.
A poll conducted by YouGov for the Trust found that 60% of Welsh adults would consider solar panels if money were no object. However, 56% said they were put off by installation costs, and a quarter were unsure if panels would reduce their energy bills.
To tackle this uncertainty, the Energy Saving Trust has released updated guidance, including a revamped solar calculator to help households estimate installation costs, savings, and potential income from selling unused electricity back to the grid.
Joanna O’Loan, Knowledge Manager at the Energy Saving Trust, said: “Installing solar panels is a smart long-term investment. They work effectively across the UK—even in Wales—and combining them with battery storage and heat pumps can maximise benefits. The net zero home of the future will be powered by a mix of low-carbon technologies.”
Bright returns and real savings
The average installation cost for a domestic 3.5kWp solar system is now around £6,100, and depending on usage and location, homes in Aberystwyth could save £150–£370 annually on electricity bills.
Excess energy can be sold back to the grid through the Smart Export Guarantee (SEG) scheme, providing homeowners with an additional revenue stream. Adding battery storage—which allows energy to be saved for cloudy days or night-time use—can enhance these benefits. Around 48% of survey respondents said they would consider installing solar battery systems if money were no object.
Battery systems typically cost £5,000–£8,000, but can significantly reduce reliance on the grid, especially when paired with smart energy tariffs.
Environmental boost
While savings are a big driver, environmental concerns are not far behind. Over a third (37%) of respondents said they’d install panels to lower their carbon footprint. Solar can reduce emissions by 700–850kg of CO₂ per year, the equivalent of driving from London to Bristol 26 times.
Despite this, only 14% of Welsh respondents believed solar panels are very effective across the UK. The Trust aims to bust this myth, highlighting that modern panels generate electricity even on cloudy days.
Real-world success
Tim, who installed solar panels and battery storage at his Grade II-listed home in Somerset, reported £1,200 in savings in 2024 alone, by using a flexible tariff and charging batteries overnight.
In Malvern, Beth and Martin use their solar setup to power their home and electric vehicle: “It did take a few small changes—like doing the laundry overnight—but now it’s second nature. Solar has saved us money and made our home more sustainable.”
Try the solar calculator
Householders can now explore how much they could save using the Trust’s updated solar panel calculator, available on their website. By answering a few simple questions, users can receive estimates on installation costs, energy bill savings, and SEG earnings.
Visit: www.energysavingtrust.org.uk for more information and to use the calculator.
Climate
Welsh windfarms to power major construction materials firm
A MAJOR construction materials company has signed a long-term deal to use renewable energy from Welsh windfarms as part of efforts to cut carbon emissions.
Energy firm RWE has agreed a 15-year contract to supply electricity to Breedon Group plc, which operates sites across Great Britain producing materials including concrete, asphalt and cement.
Under the agreement, RWE will provide around 70 gigawatt hours of renewable electricity each year from its windfarm portfolio.
The power will initially come from the Gwynt y Môr offshore windfarm, about 24km off the coast of North Wales in the Irish Sea. From 2033, supply will switch to the Brechfa Forest West onshore windfarm in Wales.
The electricity will support the production of key building materials, helping Breedon reduce emissions linked to its energy use in a sector widely regarded as difficult to decarbonise.
RWE said the agreement highlighted the role renewable energy can play in helping heavy industry move towards lower-carbon operations.
Olaf Lubenow, head of commodity solutions at RWE, said: “This agreement underlines our commitment to supporting the construction materials sector on its journey towards a more sustainable future.
“By supplying renewable electricity from our wind portfolio, we are helping to reduce the carbon footprint of Breedon’s operations.”
Breedon said the deal would also provide long-term energy stability while supporting its wider sustainability plans.
Donna Hunt, the company’s sustainability director, said the agreement marked “a meaningful step forward”.
She said: “It secures long-term energy supply and helps accelerate the reduction of emissions from our operations.”
The company has set targets to cut emissions across its business by more than 20% by 2030 and to reach net zero by 2050.
The agreement reflects a growing trend of major industrial firms turning to renewable energy to help meet climate targets while managing rising energy costs.
Business
Pembroke Power Station National Grid shutdown power plans
A CALL to site specialist diesel generators at Pembroke Power Station to help keep the lights on in the event of a National Grid shutdown has been lodged with county planners.
In a screening application to Pembrokeshire County Council, RWE Generation UK PLC, through Ove Arup & Partners Ltd, wants to site up to six containerised diesel generators, diesel storage tank(s) and electrical connections at Pembroke Power Station, Pwllcrochan, near Pembroke.
The application site is within the site of the existing Pembroke Power Station, a combined-cycle gas turbine (CCGT) station which began commercial operation in September 2012, with a gross consented capacity of about 2,199 megawatts electric (MWe), replacing the previous oil-fired power station which operated for almost 30 years and was decommissioned in 1999.
A supporting statement says, subject to confirmation, it is considered to comprise permitted development, the scheme “a standalone plant, with its own fuel supply, capable of starting up, operating and shutting down independently from the power station”.
It adds: “It is required only in an emergency to maintain plant status and keep the power station operationally ‘ready’ in the event of a total or partial shutdown of the National Grid system. It is not required for the normal operation of the power station and does not extend its capacity, which remains as already consented, therefore it is not considered a change or extension.”

On need, it says it is mandatory that all electricity generators of over a megawatt have to adopt a new minimum standard of asset resilience; power stations “must be capable of restoring demand on the National Grid electricity transmission system in the event of a total or partial shutdown of the National Grid system”.
“The Power Station does not currently meet this new asset resilience standard, therefore new back-up power, control philosophy and on-site services that support site critical systems enabling the power station to remain ready to operate must be implemented.
“RWE is required to install a new enhanced emergency site auxiliary solution (diesel generators and diesel storage tanks) at the power station for resilience against the failure of the interconnected electricity distribution network into which it is normally connected in order to satisfy the Grid Code requirements by the mandated implementation deadline of December 31, 2026.
“RWE will make operational and fuelling provision, within its new resilience design at Pembroke power station of up to 120 hours, in order to provide capability to a slightly enhanced standard known to be valued by the National Energy System Operator (‘NESO’) in certain emergency network scenarios.”
It says construction is hoped to start in July 2026, lasting approximately nine to 12 months, the main part across the summer months.
The call will be considered by county planners at a later date.
Business
Pembrokeshire St Brides Castle biomass and solar scheme
PLANS for a green energy scheme at a Pembrokeshire former country house which is now holiday apartments have been given the go-ahead.
In an application to Pembrokeshire Coast National Park, HPB Ltd, through agent Acanthus Holden Architects, sought permission for a biomass boiler plant and installation of 16 rows of solar panels to the south of the tennis courts, St Brides Castle, St Brides, along with the removal of two tennis courts, two polytunnels, two sheds and relocation of a container.
Marloes and St Brides Community Council: Supporting
An officer report recommending approval said: “St Brides Castle. Listed Grade II* is a former country house (now holiday apartments) just south-west of the small settlement of St Brides.
“The house and its listed ancillary buildings stand prominently within a large grade-II-registered park and garden. The development site lies immediately south of the registered asset, outside of its boundary.”
It added: “Although in a sensitive location, the proposed scheme is well-screened, utilising an existing hedged enclosure. The proposed panels do not protrude over the hedge line, the proposed extra planting to the south and west providing further screening. The proposed building, also well-screened, is of traditional design, proportions and materials.”
The application was conditionally approved by park planners.
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