UK Energy Market Report — 19 June 2026

What we’re watching today

• DESNZ’s EPC B rollout for private rented sector begins in earnest
• New funding rounds for heat networks and heat pump readiness
• Grid carbon intensity at 141 gCO2/kWh, with wind leading generation

Headlines and what they mean

Non-domestic Private Rented Sector minimum energy efficiency standards: EPC B implementation

The mandatory EPC B standard for private rented non-domestic properties comes into effect this week, requiring landlords to meet higher energy performance thresholds by 2026. This will drive demand for retrofitting, energy efficiency upgrades, and potentially shift energy procurement strategies toward low-carbon, high-efficiency solutions. The move aligns with broader decarbonisation goals and may influence leasing terms and property valuations. source

Fairer, faster redress in the energy market

DESNZ has launched a consultation on improving redress mechanisms for energy customers, aiming to reduce disputes and increase trust in the market. For commercial buyers, this signals a broader regulatory push toward transparency and accountability, particularly around billing accuracy and contract performance. While not directly impacting pricing, it underscores the importance of clear contractual terms and robust supplier engagement. source

Notice: Apply for the Heat Network Efficiency Scheme (HNES)

The Heat Network Efficiency Scheme (HNES) is now open for applications, offering funding to improve efficiency in existing heat networks. This is a direct opportunity for commercial energy buyers in district heating zones to access capital for upgrades that reduce energy use and carbon output. The scheme supports the government’s target of decarbonising heat and may influence future procurement models for thermal energy. source

Heat Pump Ready Programme Round 2: innovation funding competition

DESNZ has launched a second round of innovation funding to support heat pump readiness, targeting building owners and developers. This complements the broader shift toward electrified heating and offers commercial buyers a route to future-proof their energy systems. Early participation can secure grants and technical support for system design and integration. source

Plug-in solar: Regulatory amendment and interim product specification

A new regulatory framework for plug-in solar systems has been published, setting interim safety and performance standards. While primarily aimed at domestic installations, the implications for commercial sites with rooftop solar are significant. The rules may affect procurement decisions, especially around integration with existing systems and compliance with grid connection standards. source

Greater protections to restore families' trust in home upgrades

This announcement, alongside related consultations, reflects a broader government effort to strengthen consumer safeguards in home energy upgrade schemes. For commercial buyers, it underscores the need for due diligence when engaging with third-party suppliers or contractors, particularly in retrofit and decarbonisation projects. Trust in delivery is now a key market factor. source

The view from the trade desk

The UK grid today shows a moderate carbon intensity of 141 gCO2/kWh, with wind contributing 37.9% of generation—indicating a relatively clean system. Gas remains the largest single source at 32.5%, followed by nuclear (11.5%) and imports (9.7%). This mix suggests that energy procurement decisions can be optimised around wind availability, particularly for flexible loads. With EPC B standards now in force and new funding streams active, commercial buyers should consider aligning procurement with decarbonisation timelines and leveraging flexibility to reduce exposure to higher gas-based generation periods.

What to do this week

• Review EPC B compliance status for all non-domestic properties in your portfolio and identify retrofit needs
• Submit applications for the Heat Network Efficiency Scheme (HNES) if your site is connected to a district heating network
• Assess eligibility for the Heat Pump Ready Programme Round 2 and begin preparing technical proposals
• Audit existing solar installations against the new plug-in solar interim specifications
• Use the Yolk portal to model load shifting opportunities during high wind periods (37.9% generation) to reduce carbon and cost

Bottom line

The current regulatory environment is accelerating the pace of decarbonisation across commercial property and energy systems. With EPC B enforcement starting and new funding available for heat and efficiency upgrades, businesses must act now to align procurement with compliance and sustainability goals. The grid’s current 141 gCO2/kWh intensity and strong wind contribution offer a window to optimise energy use and reduce carbon footprint. Proactive engagement with DESNZ schemes and supplier flexibility will be key to managing risk and capturing value.