For much of last year, energy market commentary has focused on a welcome sense of calm. Wholesale gas and electricity prices have stabilised following years of extreme volatility, creating the impression that the worst of the energy cost crisis is over, writes Andrew King, Founder, Sustainable Grid Tech (SGT).
That narrative, while not incorrect, is increasingly incomplete. For businesses, suppliers and policymakers alike, focusing primarily on wholesale prices now risks obscuring the real drivers of future energy affordability. The most significant cost pressures facing the UK energy system over the next decade sit outside the commodity itself.
Why wholesale prices now give a misleading picture
Wholesale energy prices represent only one part of the final bill, yet they continue to dominate procurement conversations, media coverage and policy debate. This focus made sense during periods of acute price shocks, when commodity costs spiked dramatically and overwhelmed all other components.
Today, the balance has shifted. For many commercial electricity users, non-commodity charges, including network costs, balancing charges and policy levies, already account for more than half of total spend. As these elements rise, stable wholesale prices can coexist with higher overall bills.
The risk is behavioural as well as financial. Businesses that see flat or falling unit rates may assume cost exposure is under control, only to be caught out by rising standing charges and pass-through costs at renewal or mid-contract. Similarly, policymakers assessing affordability through the lens of wholesale markets alone risk underestimating the pressures facing end users.
In short, wholesale prices increasingly describe the cost of energy, but not the cost of being connected to the system, and it is the latter that is changing most rapidly.
How non-commodity charges are evolving
Non-commodity charges fund the infrastructure and services required to keep the electricity system functioning. As the UK transitions to a lower-carbon, more electrified economy, these services are becoming more complex and more capital intensive.
Several structural changes are now converging. Balancing costs are rising as intermittent renewable generation expands, requiring more frequent intervention to match supply and demand in real time. Network investment is accelerating as transmission and distribution assets are reinforced to accommodate electrification of transport, heat and industry. At the same time, new financing mechanisms are being introduced to support long-term generation and security of supply.
From late 2025 onwards, these pressures became more visible in bills. Increases in balancing charges reflect the operational reality of running a system with high renewable penetration. New levies to fund large-scale infrastructure represent a shift towards consumers contributing earlier and more directly to future capacity. Substantial uplifts in transmission charges highlight the scale of investment required to modernise an ageing grid.
For suppliers, this evolution complicates pricing and risk management. Non-commodity costs are harder to forecast, subject to regulatory change and unevenly distributed by region. For networks, rising charges are the inevitable consequence of delivering mandated upgrades under constrained funding models. For end users, the outcome is a growing proportion of costs that are fixed, location-dependent and largely insensitive to consumption.
The underestimated impact on long-term affordability
Despite these trends, the impact of structural and regulatory costs on long-term affordability remains widely underestimated.
Many businesses continue to treat non-commodity charges as background noise rather than strategic risk. Procurement decisions still prioritise headline unit rates, even as standing charges rise and capacity-related costs become more significant. In some cases, organisations are paying for network capacity far in excess of operational need, simply because it has never been reviewed.
At policy level, affordability discussions often assume that stabilising wholesale markets will translate directly into lower bills. This overlooks the cumulative effect of infrastructure recovery, system balancing and long-term financing mechanisms. While each individual charge may appear modest, together they materially reshape the cost structure of energy.
There is also a competitiveness dimension. UK businesses operating in globally traded sectors may face rising overheads driven not by energy consumption, but by domestic network and policy costs. As a greater share of bills becomes fixed, reduced activity or efficiency improvements deliver diminishing financial relief, placing additional strain on margins.
From a cashflow perspective, higher standing charges also reduce flexibility. Businesses pay more simply to remain connected, regardless of output levels. This has implications for resilience during downturns, shutdowns or seasonal operations.
Rethinking the response
Addressing these challenges requires a shift in mindset. Energy cost management can no longer focus solely on buying cheaper units; it must also address how, where and why costs are incurred.
For businesses, this means gaining visibility over non-commodity exposure, reviewing contracted capacity, understanding regional charging structures and modelling multi-year cost scenarios that reflect known regulatory changes. Operational measures, from load shifting to on-site generation and storage, can help mitigate exposure, but only when aligned with a clear understanding of cost drivers.
For policymakers, there is a need for greater transparency around how transition costs are recovered and how they affect different user groups. Without this, there is a risk that affordability concerns are identified too late, once charges are already embedded in bills.
A structural, not cyclical, shift
The rise of non-commodity costs is not a temporary distortion caused by market stress; it is a structural feature of the UK’s energy transition. Building a cleaner, more resilient electricity system requires sustained investment, and that investment must be funded.
The challenge now is ensuring that businesses, suppliers and policymakers alike recognise where the real cost pressures lie. Wholesale prices still matter, but they no longer tell the whole story. Long-term affordability will be shaped just as much by infrastructure, regulation and system design as by the price of fuel itself.
Understanding that distinction is the first step towards managing it.
For more information: https://sgt-ltd.co.uk/
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