Marcus Stone, Global Sustainability Manager – Linxon
Sustainability in energy systems is fundamentally an engineering challenge. Targets and policy set direction, but progress ultimately depends on how engineers design, modernise and operate the networks that transmit electricity from generation sites to end users. According to the International Energy Agency, rising electricity demand is adding urgency, with forecasts indicating global electricity consumption growth at around 4% annually through 2027. At the same time, grid constraints are already slowing progress, with significant volumes of wind and solar projects technically ready but unable to connect due to network limitations.
At Linxon, engineering is where sustainability moves from ambition into delivery. By strengthening and upgrading transmission infrastructure, facilitating grid connections for low‑carbon electricity, and modernising vital assets, Linxon engineers directly shape how efficiently, and reliably power systems respond to rising demand while limiting environmental impact. This is increasingly critical, as delayed grid investment and modernisation are widely recognised as one of the main barriers to clean energy transitions, even where generation capacity is already available.
In practice, this work includes connecting large‑scale renewable generation to national and regional grids, delivering substations that enable electrified rail systems, and upgrading ageing high‑voltage infrastructure to improve resilience and reduce losses. These projects demonstrate how sustainability outcomes are shaped by engineering decisions embedded in the grid itself. Applied consistently across regions and programmes, these decisions support Linxon’s wider commitment to reducing emissions and achieving carbon net zero by 2050.
Engineering sustainability into delivery, not only the end asset
The sustainability impact of infrastructure is influenced not only by what is built, but by how projects are planned and delivered. Engineering choices in planning, sequencing, logistics, and construction methods directly affect waste, energy consumption, travel emissions, and rework across the project lifecycle.
This is why Linxon emphasises making sustainability measurable and manageable throughout delivery. Tools such as EcoTrack are used to consistently capture and report sustainability data across sites and offices, covering greenhouse gas emissions, waste, water, and energy use, and supporting transparency and measurable progress in sustainability performance. In parallel, OpenSpace provides remote progress tracking and AI‑powered site visibility, helping teams reduce unnecessary travel while improving oversight across geographically distributed projects.
Taken together, these tools illustrate a broader point: Sustainable delivery improves when measurement, digital workflows, and delivery discipline are embedded in everyday engineering practice rather than treated as an additional reporting requirement. When this integration becomes standard, sustainability moves from aspiration to repeatable, consistent performance across projects.
Design decisions as sustainability multipliers
The most significant sustainability decisions are often made early. Design and technology choices influence losses, resilience, maintainability, and environmental impact for decades, particularly in long-lived grid assets. A consistent message across authoritative analysis is that modern, expanded grids are essential for successful clean energy transitions, and that grid development needs to keep pace with electrification and renewable deployment (IEA, 2023; IEA, 2025).
Recent analysis also underlines how progress in renewables deployment can outpace the infrastructure designed to connect and distribute electricity, creating bottlenecks that restrict growth even when clean generation capacity accelerates. Solar and wind account for over 90% of new global electricity capacity additions, and clean power provides around 40% of total global electricity generation (IEA, 2023).
This is where engineers become enablers of sustainability. Long term sustainability depends on engineers who translate future system needs into practical solutions, designing for efficient operation, minimising avoidable impacts, and embedding flexibility and resilience into infrastructure. At Linxon, sustainability is embedded with engineering excellence, considered alongside safety, quality, and performance, and strengthened through shared learning and capability-building across engineering hubs.
Technology choices that shape lower-impact grids
Sustainability is also influenced by technology selection. Some of the most visible improvements in grid sustainability come from replacing high-impact materials and processes with lower-impact alternatives while maintaining reliability, safety and performance.
A notable example is the transition away from SF₆-based switchgear. SF₆ is described as an extremely potent greenhouse gas, with a 100-year global warming impact estimated to be at least 23,500 times greater than CO₂, and an atmospheric lifetime of greater than 1,000 years (EPA, 2025).
Guidance and tools to support decision-making on SF₆ alternatives reflect a broader shift in how substations are designed and procured to reduce long-term environmental and regulatory risks. Linxon’s advocacy for eco-efficient technologies, including suitable SF₆-free alternatives such as EconiQ GIS, demonstrates how engineering innovation can support sustainability without compromising system integrity. In the same practical spirit, Linxon projects increasingly incorporate sustainability-related design and site measures, such as solutions that reduce the footprint of temporary power and site operations, and digital tools that reduce rework and avoidable travel.
Engineering sustainability at scale
Across the sector, the conclusion is clear: sustainable development depends on infrastructure that is engineered to perform reliably, adapt to new demands, and integrate cleaner sources of electricity at speed. When grid development lags, the pace of transition slows, and costs rise, including through delayed renewable connections and constrained system performance.
At Linxon, we advance sustainability through engineering practices consistently applied across regions and projects: disciplined delivery, improved measurement, enhanced capability, and technology choices that reduce impact across the full asset lifecycle. The goal is not a single initiative, but the cumulative effect of many well-made engineering decisions, executed consistently and on scale.
Sources
International Energy Agency. (2023). Electricity grids and secure energy transitions. https://iea.blob.core.windows.net/assets/ea2ff609-8180-4312-8de9-494bcf21696d/ElectricityGridsandSecureEnergyTransitions.pdf
International Energy Agency. (2025). Building the future transmission grid (Executive summary). https://www.iea.org/reports/building-the-future-transmission-grid/executive-summary
Linxon. (2024, April 15). Linxon pioneers OpenSpace reality capture and AI-powered analytics in energy grid projects. https://linxon.com/linxon-pioneers-openspace-reality-capture-and-ai-powered-analytics-in-energy-grid-projects/
Lu, W., Lou, J., Ababio, B. K., et al. (2024). Digital technologies for construction sustainability: Status quo, challenges, and future prospects. npj Materials Sustainability. https://www.nature.com/articles/s44296-024-00010-2.pdf
Royal Institution of Chartered Surveyors. (2023). Digitalisation in construction report 2023. https://www.rics.org/content/dam/ricsglobal/documents/research/Digitalisation%20in%20construction%202023_final.pdf
United States Environmental Protection Agency. (2025). Sulfur hexafluoride (SF₆) basics. https://www.epa.gov/eps-partnership/sulfur-hexafluoride-sf6-basics
World Economic Forum. (2026, January 11). Keeping the lights on: How power infrastructure gaps risk energy security. https://www.weforum.org/stories/2026/01/power-infrastructure-grid-energy-security/
