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Climate

UK wind power reaches historic 30GW milestone

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The UK’s wind energy sector has achieved a significant milestone, reaching a total generation capacity of 30 gigawatts (GW). This landmark was attained following the opening of the Viking Wind Farm on the Shetland Islands, which added 443 megawatts (MW) to the country’s capacity.

The UK’s combined onshore and offshore wind capacity now stands at 30,299MW, according to RenewableUK’s EnergyPulse, the industry’s leading market intelligence service. This capacity is sufficient to meet the annual electricity needs of over 26 million homes and is expected to reduce carbon emissions by more than 35 million tonnes annually.

Wind power has been instrumental in the UK’s shift towards renewable energy, with wind energy accounting for a record 28.1% of the nation’s total electricity generation in 2023. In the same year, renewables provided 46.4% of the UK’s electricity, with wind power contributing over 60% of this total.

The journey to 30GW has been one of steady growth. The UK’s first commercial onshore wind farm in Delabole, Cornwall, began operations in 1991, followed by the first offshore project off Blyth, Northumberland, in 2000. It took until 2005 to reach 1GW of capacity, with growth accelerating in the subsequent years: 5GW was reached in 2010, 10GW in 2013, and 15GW in 2017. The latest milestone, 30GW, marks a doubling of capacity in just seven years.

The Viking Wind Farm, a project 15 years in the making and costing around £1.2 billion, is the largest onshore wind farm to be built in the UK in nearly a decade. With its 103 turbines, it will harness Shetland’s robust wind resources, delivering renewable energy via a 260km High Voltage Direct Current (HVDC) subsea cable. Viking is expected to become the UK’s most productive onshore wind farm, generating approximately 1.8 terawatt hours (TWh) of electricity annually, enough to power a city the size of Birmingham.

Commenting on the achievement, Ana Musat, RenewableUK’s Executive Director of Policy & Engagement, hailed the milestone as a testament to the industry’s rapid progress. “It took 26 years to install the first 15GW of wind energy in the UK, so to double that to 30GW in just seven years represents a tremendous success for the industry,” she said. Musat emphasised the importance of wind energy in the UK’s transition away from fossil fuels, highlighting research that suggests doubling the UK’s onshore wind capacity by 2030 could boost the economy by £45 billion and create 27,000 jobs.

Stephen Wheeler, Managing Director of SSE Renewables, expressed pride in the Viking Wind Farm’s contribution to the milestone. “As the largest onshore wind farm to be built in the UK in nearly ten years, the completion of the project is a big moment in its own right – and contributing to this milestone for the industry makes it even more special,” Wheeler remarked. He also noted the urgency of further expanding renewable energy to meet the UK’s zero-carbon targets by the end of the decade.

The achievement of 30GW is a significant step towards a cleaner energy future for the UK, but industry leaders warn that continued rapid expansion is essential to achieving the country’s long-term environmental and economic goals.

It is important to note: While the UK has reached an impressive 30GW of installed wind capacity, it’s important to note that actual electricity generation from wind power can vary due to the fluctuating nature of wind. On average, onshore wind farms operate at around 30% of their capacity, while offshore wind farms typically achieve around 40%. This means that at any given moment, the amount of electricity generated can be significantly lower than the total installed capacity. The development of efficient and affordable energy storage solutions will be crucial for maximising the potential of wind power in the UK’s energy mix.

Climate

Flood Alert issued for Pembrokeshire Coast

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NATURAL RESOURCES WALES has issued a flood alert for the Pembrokeshire coast, urging residents to be prepared for possible flooding. The alert covers the stretch of coastline between St Dogmaels, Cardigan, and Amroth, where flooding could occur.

The public is advised to take precautions and remain vigilant. For up-to-date information, residents can visit the Natural Resources Wales website or contact the Floodline service on 0345 988 1188, using the quick dial number 503013. Water levels can be checked via the ‘river, rainfall and sea data’ page on the Natural Resources Wales website.

Flood Preparedness: Do’s and Don’ts

Do:

  • Follow your flood plan, if you have one.
  • Ensure you know the whereabouts of your loved ones and pets, and make a plan to move them to safety if necessary.
  • Safeguard your important documents, sentimental items, and valuables by placing them in a secure location.
  • Keep your mobile phone charged and accessible.
  • Make sure you know how to turn off your electricity, gas, and water supplies.
  • Prepare a small bag with essentials such as medication, phone charger, warm clothing, and any necessary items for babies and pets.
  • Move vehicles, livestock, and equipment from areas at risk of flooding.

Don’t:

  • Avoid driving or walking through floodwater. Just 30cm of water can carry away a car, while 15cm is enough to knock a person off their feet.

For further updates and guidance, follow Natural Resources Wales on social media or call Floodline.

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Climate

West Wales scientists to test if snow is melting high on Everest

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RESEARCHERS plan to test if the snow high up on Everest is melting, threatening the water supplies of over one billion people.

Despite air temperatures being well below zero on the highest mountain on Earth, it is believed that the snow may be melting due to rising air temperatures combined with intense solar radiation.

If the theory proves correct, it would suggest that the glaciers in the Himalayas are thawing faster than expected.

Glaciers in the highest mountains of the planet are an extremely important source of water with over one billion people – including many in India, Pakistan and Bangladesh – depending on Himalayan runoff.

Changes in the rate of glacier thawing would threaten this water supply. Another danger would also be more flooding from failures of natural ice dams, or so-called Glacial Lake Outburst Floods.

The new project follows previous findings by Aberystwyth University and University of Leeds researchers which showed that the temperature of the ice in the lower parts of Khumbu Glacier, at the foot of Mount Everest, is warmer than would be expected given the local air temperature.

As part of the research, Professor Bryn Hubbard from Aberystwyth University will work with Professor Duncan Quincey of the University of Leeds to lead a team to the Western Cwm, over six kilometres above sea level and half a kilometre above base camp.

The researchers expect to go on their first trip in spring 2025 to drill into the surface of the upper reaches of Khumbu Glacier and use the boreholes to record temperatures. The team will also install automatic weather stations at the study sites.

This data will help them look for evidence of melting and refreezing within the glacier’s surface snowpack.

Professor Bryn Hubbard from Aberystwyth University’s Department of Geography and Earth Sciences said:

“It may well be a bit of a surprise to many that snow is melting within the mountain’s Western Cwm, but it is increasingly likely and it needs to be investigated and measured if we are going to be able to identify the effects of climate change on this water-stressed region and beyond.

“Understanding and recording what actually happens inside these glaciers is critical to developing computer models of their response to anticipated climate change. Equally important is developing a better understanding of how they flow so that we can better predict when dams that form on these glaciers are likely to be breached, releasing destructive volumes of water to the valleys below. This is a real risk in the Himalayas as it is in other regions such as the Andes and has the potential to endanger the lives of thousands of people.”

Scientific observations are rarely made at high altitudes because of the logistical challenges in transporting equipment.

The team is designing a new lightweight drilling setup to overcome these barriers. However, it will still face problems such as maintaining battery power in freezing temperatures and working in areas with harsh living conditions and low levels of oxygen.

Professor Duncan Quincey explained:

“Our previous work has relied on helicopters to transport our equipment onto the glacier, but given how thin the air is in the Western Cwm, we can’t be sure the helicopters will be able to fly this time. We also won’t know quite how the equipment will fare in such harsh conditions, because it is designed to operate in much warmer conditions – as could also be said for the human body! But if we can successfully drill even a single borehole within the Western Cwm, that will be a major success. Most importantly, it will lead us to being able to model how water supplies are likely to change for a large part of the world’s population with much greater certainty.” 

Professor Hubbard added:

“This work will also give us a new understanding of processes and changes that are relevant for all glaciers in similar settings world-wide. Hopefully, it will resolve outstanding debates about the possibility of net mass loss at the world’s highest elevations and indicate the extent to which other glaciers within the Himalayas may also contain unexpectedly warm ice.

“We should also be able to provide insights into a rarely observed cryospheric zone that can inform public policy on climate change. As part of this, we will be providing further evidence for supporting agencies such as the United Nation’s Development Programme, and the Nepalese government. This should help them prepare for, and mitigate against, a now inevitable change in meltwater supply as climatic changes continue to influence the region.”

The project is funded by the Natural Environment Research Council and is a collaboration between academics from Aberystwyth and Leeds universities.

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Climate

Wales could achieve Net Zero by 2035 under bold new proposals

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WALES could reach its net zero target 15 years ahead of schedule, according to new proposals published today by the Wales Net Zero 2035 Challenge Group. The reports, which were released on Monday 16th September, aim to renew and accelerate Wales’s approach to tackling climate change, offering a strategic roadmap for reaching net zero by 2035 instead of the current 2050 target.

The proposals encompass a wide range of sectors, including education, food, energy, buildings, and transport, and outline a series of actionable strategies designed to help Wales navigate the changing climate.

Rachel Sharp, Director of Wildlife Trusts Wales, praised the potential impact of these proposals, saying: “The new proposals reveal that huge benefits to the Welsh public are possible through a faster net zero transition, including improved public health, reduced pressure on the NHS, greater energy security, a more resilient food supply, and low-carbon job generation.”

The push for an earlier target comes as Wales, alongside other nations, confronts increasingly severe and frequent weather events that have been predicted by climate scientists. With global leaders emphasising the critical point at which we stand in the fight against climate change, the need for urgent action has never been clearer. Sharp added, “It’s clear that urgent action is needed and that we should all try to reach net zero much faster.”

As a sub-nation to the UK in the upcoming COP 29 summit this November, Wales is seeking to expedite its climate action. The current net zero target is set for 2050, but over the past year, a multidisciplinary group has explored pathways to determine whether achieving net zero by 2035 is feasible.

By examining transformative changes implemented worldwide, the group concluded that with the right investment and political commitment, Wales can indeed accelerate its climate ambitions. They focused on the five key challenges of food, energy, housing, transport, work, and skills, and found a way to elevate Wales’s ambitions and drive forward the necessary actions.

Sharp further emphasised the importance of nature-based solutions in the fight against climate change, stating, “There are real opportunities for harnessing the power of nature, for example, to help Wales adapt to our changing climate. Natural habitats – when healthy and in good condition – can be enormously beneficial. Restored, re-wetted peatlands can store carbon and hold back water in times of heavy rainfall, thus alleviating flooding. Welsh citizens will increasingly need such benefits – sometimes known as ‘public goods’. Such nature-based solutions must form a bedrock of change if Wales is to achieve net zero.”

The Wales Net Zero 2035 Challenge Group’s full report can be found at netzero2035.wales.

Rachel Sharp, who serves as Director of Wildlife Trusts Wales and was an independent advisor on the group, ensured that the proposed pathways would also lead to nature-positive outcomes.

With these ambitious proposals on the table, Wales stands at the forefront of the UK’s efforts to combat climate change, potentially setting a precedent for other nations to follow in the urgent race to net zero.

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