News

Keep up to date with TNEI’s latest news and opinion pieces

Onshore Wind Conference 2025 in Edinburgh

Ryan Llewellyn, Gemma Clark, Chris Pepper, Megan Barrie, Xiaoqing Tang, and Calum Brook recently attended the Onshore Wind Conference 2025, organised by RenewableUK and Scottish Renewables at the Edinburgh International Conference Centre. The two day conference brought together the onshore wind industry from around the world, with talks held in two breakout rooms on a wide variety of topics related to Onshore Wind Farms. There were a range of renewable energy developers present at the event, as well as those providing consultancy services and those working in the supply chain including turbine installers, turbine manufacturers, and transportation companies. Of particular interest were the governmental keynotes and sessions which covered some of the current barriers to onshore wind (primarily regarding aviation and defence), how deployment can be delivered quicker, how onshore wind can meet the climate and nature crises, considerations around repowering of some of the oldest operating wind turbines, how

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Team E&E Visits Clients in the ‘Big Smoke’

Chris Pepper (Head of Environment and Consents), Ryan Llewellyn (Consenting Lead), and Ben Parkins (Principal Consultant) recently visited London for a catch up with existing and prospective clients. Pinballing through the ‘Big Smoke’, Chris, Ryan, and Ben spent three days visiting client offices to discuss project progress, explore any market concerns and where future time and energy would be focused, and review whether there were any further ways that TNEI could support in the future. A key theme raised on several occasions was grid reform and all its associated key issues! It was clear that the need to have applications for consent submitted to support grid application is a key consideration for progressing renewable energy projects. A wide breadth of clients were visited, including those requiring TNEI support for due diligence work, noise assessments, battery projects and also electric vehicles, and solar schemes. The team also explored the topic of

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Onam Celebration at TNEI India

We had a vibrant and memorable Onam celebration at TNEI India on 29th August.  Onam, a traditional harvest festival of Kerala, is celebrated in honour of the legendary King Mahabali, who is remembered for his selfless sacrifice and deep love for his people. The festivities at our office were filled with energy and togetherness. Highlights included: Floral Carpet Competition (Pookalam): Our team secured the first prize yet again! Tug of War: Another first prize victory that brought cheers all around. Musical chairs and dance performances kept the spirits high. The celebrations concluded with a sumptuous Sadya served on banana leaves, featuring over 20 authentic dishes. Sarees with jasmine flowers and traditional mundus set the perfect festive mood. It was truly a day of unity, and cultural pride.

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Stephen Marland Appointed Director of Energy Networks at TNEI

TNEI is delighted to announce the promotion of Stephen Marland to Director of Energy Networks at TNEI. Since joining TNEI in January 2025 as Head of Innovation, Stephen has demonstrated exceptional leadership, strategic insight, and extensive industry expertise. His appointment to the Executive Team reflects both his achievements to date and the exciting direction of our Energy Networks division. Stephen previously spent three years as Director for Strategy, Innovation and Product Management at start-up AiDash Inc, and twenty years at National Grid, where he was Director for Innovation. A Chartered Engineer and Non-Executive Board Advisor, Stephen brings a wealth of knowledge in strategy, innovation and energy management. On his promotion, Stephen said: “Leading talented teams is one of the most rewarding parts of my career – TNEI is my extended family! TNEI has an unrivalled reputation across the industry for exceptional quality and deep capabilities across power systems engineering while

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TNEI on Grid – Evidence Extension, Portal Problems and Submission Support

The Gate 2 evidence submission window has been extended following an announcement from NESO on Friday (25th July). All projects will now have up until at least the 18th August to submit their Gate 2 evidence to NESO or their relevant DNO. The Story So FarThe DNO evidence submission window has been open since 20th May 2025. This was followed by the NESO submission window which opened on the 8th July, with both windows originally due to close on 29th July. However, on 16th July NESO announced that it would be extending the evidence submission window by a further 5 working days due to a significant number of problems faced by users attempting to submit evidence through the NESO portal. On Friday last week (25th July) NESO announced that the submission window is to be further extended. NESO intend to provide notice of the window closure 10 working days in

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Future Operability of Gas for System Integration (FOGSI): An Industry Collaboration

In future energy systems, the optimal operation of integrated energy networks – electrical, blended natural gas and hydrogen, pure hydrogen and heat – will require much greater coordination between them, including through storage import and export decisions and power to gas (P2G) plant actions. The feedback loop created by the widespread power-to-gas and gas-to-power will add substantial complexity to system operation.   Many current power-to-gas models adopt certain simplifications to remain manageable. These often involve using broader time or location scales, assuming predictable outcomes, and modelling markets in an idealised way.  But these trade-offs come at a cost. They risk underestimating the complexity of operating integrated energy systems, the assets required, and the investment needed.  For example, models may ignore short-term forecast errors, assume perfect foresight, or drop critical constraints like total energy budgets.  This can lead to inefficient infrastructure planning and operational decisions that compromise energy security or inflate consumer

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