Business energy costs have jumped 25% since February 2026, according to Cornwall Insight’s Business Energy Cost Forecast, driven by a combination of Middle East conflict, summer heatwaves, and a wave of policy and levy changes that took effect in April. A typical 12-month electricity contract for a small industrial or commercial business now costs more than £630,000 a year, and nearly 90% of energy consumers have no protection from the policy costs sitting behind that figure.

For UK SMEs, this is not a distant, abstract statistic. It represents a genuine reshaping of what it costs to keep the lights on, and it has happened faster than most businesses have had time to plan for. This article breaks down exactly what caused the 25% spike, which specific charges changed, and what UK businesses can realistically do to protect themselves for the rest of 2026 and beyond.

What’s Actually Behind the 25% Increase?

Cornwall Insight identifies three distinct forces working together to push business energy costs up by a quarter in just a few months: geopolitical conflict, extreme weather, and regulatory levy changes. Unlike a single price shock, this is a case of several pressures landing on business bills at the same time.

1. Geopolitical Conflict in the Middle East

Wholesale gas and power markets moved sharply higher in March 2026 after conflict in the Middle East escalated into direct attacks on major Gulf energy infrastructure. Because the UK imports a significant share of its liquefied natural gas (LNG) from global markets, disruption to Gulf shipping routes and production facilities feeds directly into UK wholesale prices, regardless of domestic supply conditions. Wholesale electricity currently trades at around £99 to £102 per megawatt hour, with day-ahead gas prices having ranged between 85p and 115p per therm through the past year, up from an average of around 75p per therm previously.

2. Summer Heatwaves Increasing Demand

Extreme summer heat has added further pressure, pushing up electricity demand for cooling at exactly the point when wholesale markets were already reacting to geopolitical disruption. The combination of rising demand and constrained supply is a classic driver of short-term price spikes, and 2026 has seen both factors converge within the same few months.

3. Regulatory Levy Changes in April 2026

The most structurally significant driver, and the one likely to have the longest-lasting impact, is a set of policy and levy changes that took effect in April 2026.

The Levy Changes Explained: CCL and TNUoS TDR

Two specific policy levies placed on non-domestic energy bills increased in April 2026, and understanding both is essential for any UK SME trying to make sense of its own bill.

The Climate Change Levy (CCL) Increase

The Climate Change Levy applies to energy supplied to commercial, industrial, and agricultural users, as well as public sector organisations, with only small firms and charities with very low consumption exempted. From April 2026, CCL rates rose from £0.00775 per kWh to £0.00801 per kWh for both gas and electricity, while LPG rates remained frozen and solid fuel rates rose in line with inflation. On its own, this increase is modest, at under 4%, and is not the primary driver of the wider 25% spike.

The TNUoS Demand Residual (TDR) Charge

The far more significant change is the rise in the Transmission Network Use of System Demand Residual (TDR) charge — the element of TNUoS specifically designed to recover the fixed costs of maintaining and expanding the UK’s high-voltage transmission network. NESO published the final 2026/27 TNUoS tariffs in January 2026, confirming an increase of roughly 60% from April 2026, with most of that increase landing on standing charges rather than usage-based rates.

This matters because it means the increase applies broadly, regardless of how much energy a business actually consumes. A business that has invested heavily in efficiency measures over the past year will still see its standing charges rise, since TNUoS is a fixed network cost, not a usage-based one.

Why Non-Commodity Costs Now Dominate Business Bills

Perhaps the most important shift for UK SMEs to understand is that non-commodity costs — network charges, environmental levies, balancing costs, and supplier margin — now account for around 64% of a typical UK business electricity bill. Wholesale energy, the actual cost of the gas or electricity itself, is now the minority component of what businesses pay. This is a fundamental change from how the market operated in the past, and it means that even if wholesale prices ease, network and policy costs are likely to keep pushing bills upward as grid investment under Ofgem’s RIIO-3 settlement continues through the rest of the decade.

Why This Hits UK SMEs Harder Than Larger Businesses

The 25% spike does not land evenly across the business energy market, and smaller businesses are structurally more exposed for several reasons.

No Equivalent Protection to the Domestic Price Cap

Ofgem’s household price cap gives domestic customers a degree of predictability, with the current cap running at £1,663 annually for a typical direct debit customer and forecast to rise a further 9% in early 2027. Business energy has no equivalent protection. Since the Energy Bill Relief Scheme ended in March 2023, UK businesses have been fully exposed to whatever the market, and whatever levy changes, land on their bill.

Smaller Businesses Pay Higher Unit Rates

Larger businesses can negotiate on volume, securing lower per-unit rates than smaller firms consuming far less energy. This means the smallest businesses often carry the heaviest cost burden relative to what they actually use, making the 25% spike proportionally more painful for micro and small businesses than for large corporates with dedicated procurement teams.

The UK Remains Structurally Expensive Compared to Europe

Ofgem’s own January 2026 market report confirms that UK electricity prices remain among the highest in Europe, with medium-sized businesses paying around 92% more than the EU median. The 2026 spike is landing on top of an already elevated baseline, not a competitively priced starting point.

Some Energy-Intensive Businesses Will Get Targeted Relief — But Not Most SMEs

The government’s British Industrial Competitiveness Scheme, announced in 2025, is set to exempt around 7,000 energy-intensive manufacturers from certain policy charges, including the Renewables Obligation and Capacity Market levies, potentially cutting eligible businesses’ electricity costs by up to 25% from 2027. This is welcome news for qualifying manufacturers, but the vast majority of UK SMEs — retailers, hospitality businesses, offices, and smaller manufacturers — fall outside its scope and will not benefit directly.

What UK Businesses Can Realistically Do About It

While the levy changes themselves cannot be avoided, UK SMEs are not powerless in how they respond to the wider 25% spike.

1. Fix Your Rate Rather Than Riding the Market

Fixed contracts protect businesses from mid-term price rises and provide genuine budget certainty in a period of significant volatility. Notably, 24- to 36-month fixed contracts are currently priced close to 12-month rates, narrowing the usual premium businesses pay for locking in longer-term certainty. Given that further geopolitical or regulatory shocks remain entirely possible, this pricing window is worth acting on rather than waiting out.

2. Compare the Market Well Before Your Renewal Date

Because energy markets remain volatile, waiting until the last moment to compare business energy options rarely pays off. Comparing and switching three to six months ahead of your renewal date typically gives your business more options, and protects against defaulting onto expensive out-of-contract rates, which can run as much as 35% above a fixed-contract rate.

3. Understand Your Bill’s Actual Composition

With non-commodity costs now making up roughly two-thirds of a typical bill, understanding how much of your invoice is wholesale energy versus network charges, levies, and supplier margin helps set realistic expectations about what switching supplier can and cannot achieve. Switching supplier will not reduce your TNUoS or CCL exposure, since these are applied market-wide, but it can meaningfully reduce your wholesale and margin costs.

4. Check Your Eligibility for Government Relief Schemes

If your business is an energy-intensive manufacturer, check whether you qualify for relief under the British Industrial Competitiveness Scheme, or other existing schemes such as the Climate Change Agreement, which can offer a discount on Climate Change Levy rates for eligible energy-intensive sectors.

5. Review Gas and Electricity Separately

Because levy and network cost structures differ significantly between gas and electricity, comparing business gas and electricity independently, rather than accepting a single bundled quote, typically produces a better combined outcome for most businesses.

How Beta Energy Direct Helps SMEs Navigate a Volatile Market

At Beta Energy Direct, based in Manchester and working with SMEs and corporates across the UK, we help businesses cut through exactly this kind of complexity. When a 25% cost increase is driven by a mix of geopolitical events, weather, and multiple overlapping levy changes, understanding what is actually driving your bill — and what can genuinely be controlled — matters more than ever.

Our approach gives your business:

• Effortless comparison of live tariffs across the whole business energy market
• Dedicated, qualified staff who can explain exactly how wholesale costs, network charges, and levies apply to your specific bill
• Best prices guaranteed on the deals we recommend
• Less paperwork and faster approvals, so responding to market volatility does not become another burden on your time

If your business is feeling the impact of the 2026 spike, get a free business energy quote and let us show you exactly where your money is going, and where genuine savings are still available.

Looking Beyond Energy: A Full Utilities Review

A 25% jump in energy costs is a strong prompt to review your wider utilities spend as well. Many SMEs working with us on energy also review their business energy supply, broadband and telecom contracts, and business finance arrangements at the same time, since every regulated utility market carries similar opportunities for savings that go unclaimed simply because nobody has compared them recently.

Frequently Asked Questions

Why have business energy costs risen 25% in 2026?

According to Cornwall Insight, the 25% increase since February 2026 is driven by a combination of Middle East geopolitical conflict pushing up wholesale gas and power prices, summer heatwaves increasing demand, and two policy levy increases in April 2026: a rise in the Climate Change Levy and a roughly 60% increase in TNUoS Demand Residual charges.

What is the TNUoS Demand Residual (TDR) charge?

The TDR is the element of TNUoS (Transmission Network Use of System) charges specifically designed to recover the fixed costs of the UK’s high-voltage transmission network. It rose by approximately 60% from April 2026, and lands primarily on standing charges rather than usage-based rates, meaning it affects businesses regardless of how much energy they consume.

Is my business protected from these levy increases?

No equivalent protection to the domestic price cap exists for UK business energy customers. Since the Energy Bill Relief Scheme ended in March 2023, businesses have been fully exposed to wholesale market and levy changes, although some energy-intensive manufacturers may qualify for relief under schemes such as the British Industrial Competitiveness Scheme or Climate Change Agreements.

Will switching energy supplier reduce these levy costs?

Switching supplier will not reduce CCL or TNUoS charges, since these are applied market-wide regardless of supplier. However, switching can meaningfully reduce the wholesale energy and supplier margin components of your bill, which is why comparing the market remains worthwhile even amid rising levy costs.

How much of my business energy bill is actually wholesale energy?

Non-commodity costs, including network charges, environmental levies, balancing costs, and supplier margin, now account for around 64% of a typical UK business electricity bill. Wholesale energy makes up the remaining share, meaning the actual commodity cost is now the minority component of most business energy bills.

Should I fix my energy contract now, given ongoing volatility?

Given that 24- to 36-month fixed contracts are currently priced close to 12-month rates, and further geopolitical or regulatory volatility remains possible, many businesses are choosing to lock in longer-term certainty now. Request a free quote to see what fixed-term options are currently available for your business.

Take Control Before the Next Shock Arrives

The 25% spike in business energy costs is a clear signal that UK SMEs can no longer treat energy as a stable, predictable overhead. Between geopolitical volatility, extreme weather, and structural levy increases, the businesses that fix competitive rates and understand exactly what drives their bill will be far better placed to manage whatever comes next.

Call Beta Energy Direct on (0800) 999-1160 or request your free energy comparison today, and put your business energy costs back under your control.