Rotherham manufacturing solar: Liberty Steel Aldwarke and Templeborough (EAF steelmaking — IETF 35-45% (fund closed July 2025)), Outokumpu Stainless (stainless strip, IETF 30-40% (fund closed July 2025)), Sheffield Forgemasters-adjacent supply chain, galvanising and metal treatment cluster. South Yorkshire Investment Zone (SYIZ) ECA reliefs are an alternative to standard AIA on the same spend, not an addition to it. Northern Powergrid G99: 4-8 months S postcodes. Steel self-consumption: 88-93%. Payback IETF + SYIZ: 2.5-4 years.
Local context — Rotherham
Rotherham steel solar: Liberty Steel EAF IETF 35-45% (fund closed July 2025) + SYIZ ECA = 2.5-4 year payback. One of the UK's richest steel manufacturing solar clusters. Northern Powergrid 4-8 months G99. 88-93% self-consumption for continuous electric arc steelmaking.
Modelled scenario — Rotherham
Illustrative worked example — modelled from this site's indicative bands, not a real project.
A 2.5 MW solar install at an Aldwarke (S60) steel supply chain fabrication facility (bar and rebar processing, electric furnace adjacent). IETF (closed July 2025) 40%: £700k. SYIZ ECA: £187.5k. AIA: £250k. Net effective capex: £612.5k on £2.5m project. Annual saving (90% self-consumption, 26p/kWh): £585k. After-grant payback: 1.05 years.
Common questions — manufacturing in Rotherham
Does Liberty Steel Rotherham would have qualified for the IETF (closed July 2025)?
Yes — Liberty Steel's electric arc furnace operations at Aldwarke and Templeborough (Rotherham) would have qualified for the IETF (closed July 2025) Phase 3 (no Phase 4 — the fund closed July 2025) at 35-45% intervention rate. EAF steelmaking is among the highest IETF-eligible (fund closed July 2025) manufacturing categories. Combined with SYIZ ECA reliefs in Rotherham, EAF steel supply chain businesses have some of the UK's most compelling manufacturing solar economics.