The UK’s energy transition is usually described in physical terms: retire fossil generation, build more wind and solar, firm it with batteries, strengthen interconnection, and reinforce the grid. That picture is accurate, but incomplete.

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What is often missing is a third pillar: flexibility from industrial and commercial energy users.

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This includes flexibility from manufacturing sites, data centres, logistics hubs, cold storage facilities, commercial buildings, embedded generation, behind-the-meter batteries and other controllable assets. When coordinated through modern orchestration systems, these resources can become measurable, dependable and dispatchable.

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At PowerSync Technologies, our view is simple: large energy users are no longer just passive consumers. Many already operate sophisticated control systems, energy assets and operational processes that can be translated into real market services. With the right technology, operational flexibility can become a commercial resource - reducing costs, creating new revenue and supporting system stability.

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The UK is already moving in this direction. The Government’s Clean Flexibility Roadmap states that clean power by 2030 will require a flexible system capable of accommodating and storing Britain’s renewable generation, with clean flexibility capacity increasing to 51–66 GW by 2030.

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Why industrial and commercial flexibility matters

The UK electricity system is often discussed through a household lens: smart meters, heat pumps, EVs and domestic batteries. Those resources matter, but they are only part of the flexibility opportunity.

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Large industrial and commercial sites often have the scale, controllability and energy intensity to make flexibility immediately valuable. These sites may have shiftable load, refrigeration systems, pumps, HVAC, process equipment, standby generation, batteries, solar, EV charging infrastructure or other assets that can be coordinated without compromising core operations.

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Government electricity statistics show that in 2024, domestic users accounted for 29.6% of total electricity demand, while industrial consumption accounted for 25.8% and commercial consumption accounted for 19.6%. In other words, a substantial share of electricity demand sits outside households, across the very customers that can provide meaningful, scalable flexibility.

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This is where PowerSync sees a major opportunity. Industrial and commercial flexibility does not need to be invented from scratch. Much of it already exists inside businesses. The task is to make it visible, controllable, compliant and market-ready.

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A megawatt is a megawatt

In power system terms, 1 MW of reliable flexibility can have the same balancing effect as 1 MW of generation. If the grid needs support, it can be provided by increasing supply, reducing demand, discharging storage or shifting consumption to a different time.

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The physics does not care whether the response comes from supply or demand. What matters is whether the resource is available, controllable and verifiable. This principle is already reflected in the direction of the UK market. NESO has said that demand-side flexibility needs to be enabled to participate in markets where it can meet system operability needs, and that low-carbon flexibility should be able to move between markets in response to effective signals.

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That is the key point. Flexibility should not be treated as a niche add-on. When properly orchestrated, it is capacity.

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Timing matters

The UK faces a timing challenge. Clean power requires major investment in new generation, grid reinforcement, storage and interconnection. But large infrastructure takes time to develop, consent, connect and deliver. At the same time, electricity demand is expected to increase as transport, heat, industry and data infrastructure electrify. Flexibility can help bridge that timing gap.

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Where industrial and commercial sites already have metering, telemetry and control access, flexible load, batteries and onsite generation can often be enabled far faster than major network or generation projects. Orchestration technology does not replace grid investment. It complements it by unlocking latent capability inside the existing system, relieving constraints sooner and improving utilisation of infrastructure that is already in place.

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This is especially important in a system increasingly shaped by grid congestion and connection delays. Recent UK grid connection reforms are designed to address a connection queue that had grown far beyond what is needed for clean power targets, with NESO and government seeking to prioritise viable projects that can support the 2030 pathway.

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Against that backdrop, demand-side flexibility is not just helpful. It is a practical way to get more value from the grid while larger infrastructure catches up.

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Flexibility reduces total system cost

The energy transition is not only a generation challenge. It is also a cost challenge.

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If the UK tries to meet every peak, constraint and balancing need only by building more physical infrastructure, system costs will rise. Flexibility helps reduce that pressure by shifting or reducing demand when the system is under stress, absorbing energy when supply is abundant, and coordinating distributed assets so they provide value where and when it is needed.

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The Clean Flexibility Roadmap is explicit that clean flexibility is required to support clean power by 2030 and deliver benefits to consumers, businesses and the environment.  NESO has also highlighted that demand-side flexibility can help manage fluctuations in renewable generation and pricing.

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Local networks are moving in the same direction. Energy Networks Association describes flexibility as changing where or when electricity is consumed or generated, with local flexibility services helping network operators manage constraints and support a smarter system.

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This is where industrial and commercial flexibility is particularly powerful. A cold storage facility, manufacturing site, data centre, commercial building or battery-backed site can provide value at multiple levels: behind the meter, locally to the network, and nationally through balancing or capacity mechanisms.

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Why businesses will demand a new deal

Historically, many UK businesses have had limited options. They could accept energy price exposure, pay a premium for fixed supply arrangements, or invest in onsite assets without a clear pathway to monetise them across the full value stack. That model is changing.

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Large energy users increasingly have the assets and systems needed to participate more actively. Many already operate energy management systems, automation platforms, backup generation, solar, batteries or controllable equipment. Their operational constraints - production windows, cold chain limits, comfort bands, safety margins and ramp rates - can be encoded into an orchestration platform so participation is safe and non-disruptive.

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At the same time, market pathways are becoming more structured. NESO’s Demand Flexibility Service was developed to reward consumers and businesses for changing when they use electricity.  Ofgem has also confirmed the development of a market facilitator function, with Elexon appointed to help grow local flexibility markets and align local and national flexibility arrangements.

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This creates the basis for a new deal for businesses: not just buying electricity, but being paid for the flexibility they can provide.

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Unlocking the third pillar

The UK does not need to start from zero. Flexibility already exists across industrial and commercial sites. The challenge is to turn that latent capability into dependable, dispatchable market capacity. That requires three things:

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First, it requires orchestration systems that can connect to assets, forecast availability, respect site constraints, automate dispatch and prove performance. This includes telemetry, control integration, measurement, verification, auditability and compliance.

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Second, it requires market pathways that treat flexibility as a first-class resource. This includes balancing services, reserve products, capacity mechanisms, local flexibility markets and supplier-led propositions. The opportunity is not a single product. It is a stack of value streams that need to be coordinated intelligently.

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Third, it requires network and system coordination. Flexibility is most valuable when it can support both local network requirements and wider system needs. That is why the market facilitator role matters: it is intended to reduce friction and improve alignment between local and national flexibility markets.

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For PowerSync, this is exactly where orchestration technology fits. PowerSync connects to batteries, flexible loads and onsite generation, then coordinates those assets in response to market and grid signals. The objective is to maximise value while protecting site operations and ensuring participation remains compliant, transparent and auditable.

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The bottom line

The UK’s transition will be built on new wind, solar, batteries, interconnection and grid reinforcement. But it will be cheaper, faster and more resilient if it fully recognises the third pillar: flexibility from industrial and commercial customers.

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A megawatt of flexible demand, battery discharge or onsite generation is a megawatt of capacity when it is available, controllable and verifiable. Much of that capability already exists inside UK businesses.

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The remaining challenge is to deploy the orchestration systems and market mechanisms that can bring it to market reliably, at scale, and on timelines measured in weeks and months - not years.

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Contact PowerSync Technologies today to discuss how your sites can participate safely and transparently - turning operational flexibility, behind-the-meter batteries and onsite generation into measurable market services.

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