First phase of town's low-carbon heat network done

Hemiko has completed phase one of a multi-million pound Worthing heat network, installing more than 2km of insulated pipe and a central energy centre that now supplies larger buildings including the Town Hall and Connaught Theatre; the company says it has invested £3.8m to date. The system extracts heat from outside air to circulate hot water and is projected to save about 3,000 tonnes of CO2 annually (equivalent to roughly 2,000 cars); phase two, beginning in March, will extend heating to Splashpoint Leisure Centre and the Pavilion Theatre using a less disruptive robotic borehole-drilling method. Local merchants reported disruption during phase one, though council data cited a 67,000 increase in town-centre visitors between July and September versus the comparable period in 2024, and Hemiko says it has adjusted plans in response to feedback.

Analysis

Market structure: District heating projects like Worthing directly benefit specialist operators, heat-pump manufacturers and pipe/insulation suppliers while eroding demand for gas boilers and depressing footfall-exposed retail landlords in the near term. Winners: large services/utilities with DH expertise (ENGI.PA, VIE.PA), heat-pump makers (NIBE-B.ST), pipe/insulation suppliers (UPOV.HE) and civil contractors (BBY.L); losers: small boiler OEMs and regional retail REITs. The £3.8m first-phase spend and 3,000 tCO2 pa saving are small but signal scalable unit economics for muni rollouts over 3–7 years, pressuring gas volumes and pricing power for local boiler services.

Risk assessment: Tail risks include project delays, local political backlash, regulatory reversals on subsidy/tariff support, and electricity-price spikes that make electric heat less economic — a 30% jump in power prices could flip district-heating IRRs materially. Immediate risks (days–weeks): construction disruption and local retail revenue hits; short-term (months): contractor claims/cost overruns; long-term (3–7 years): technology adoption and grid interaction. Hidden dependency: district heat economics hinge on low-cost grid power or dedicated renewables; rising carbon or capacity charges could be a catalyst or headwind.

Trade implications: Direct actionable plays favor listed service providers and heat-pump/pipe manufacturers while hedging retail real-estate exposure. Prefer buy-and-hold exposure to ENGI.PA/VIE.PA and NIBE-B.ST on 6–18 month horizons, use BBY.L exposure to benefit from infrastructure contracts, and short small-cap retail REITs that have concentrated town-centre assets.

Contrarian angles: The market may underappreciate power-price sensitivity and municipal permitting friction—widespread UK rollout requires either subsidies or higher carbon prices. Historical parallels (Scandinavia) benefited from consistent policy and taxation; without similar UK policy certainty adoption could be uneven, creating idiosyncratic winners and losers rather than a broad sector rally.

Key Decisions for Investors

• Establish a 1–1.5% long position in Engie (ENGI.PA) with a 6–18 month horizon; consider buying 12–18 month ATM calls if available to lever upside. Target +15–25% if new DH contracts or Q2 backlog commentary confirms rollout; implement a 12% stop on equity or limit option spend to <0.5% NAV.
• Add a 1% long position in NIBE-B.ST (heat pumps) via 18-month LEAP calls (ATM) or buy stock; expect outsized demand if UK/Europe accelerate heat-pump installs. Reduce if European power-forward prices rise >25% YoY or if guidance on order books disappoints.
• Initiate a 1% tactical long in Balfour Beatty (BBY.L) for 6–12 months to capture infrastructure contracting for heat networks; alternatively buy 9–12 month OTM calls. Take profits if bid pipeline disclosure increases or if order-book growth >10% QoQ.
• Establish a 0.5–1% short or underweight in mall/footfall-exposed REITs (e.g., HAMMERSON HMSO.L or a UK retail-REIT basket) for 3–6 months expecting localized footfall disruption and rent pressure; cap loss at 8% and re-evaluate on municipal consent outcomes.
• Allocate 3–5% of fixed-income sleeve to investment-grade green infrastructure corporate bonds or the iShares Green Bond ETF (BGRN) with 2–5 year duration to earn yield while hedging regulatory support risk; rebalance if UK green-gilt issuance or subsidy announcements materially change project finance economics.