What's distinctive about group / multi-site corps solar on UK Power Networks?
group / multi-site corps in the UK Power Networks territory (London + South East + East England) typically run 500 kW - 2.5 MW (portfolio) installs at £450k-£2.25m capex with 5.5-year Salix-funded payback. G99 grid connection on UKPN for installs in this scale band typically takes 17 weeks — factor this into the project programme as the critical-path item. We've delivered installs across the UKPN network at the named colleges listed below.
- System size
- 500 kW - 2.5 MW (portfolio)
- Capex
- £450k-£2.25m
- Payback
- 5.5 yrs
- G99 timeline
- 17 wk avg
1500 kW
Typical system size
Per group / multi-site corp install
17 wks
UKPN G99 timeline
Critical-path item
6
Named group / multi-site corps on network
In our coverage
5.5 yr
Salix payback
Conservative model
Why group / multi-site corps solar works on UK Power Networks
Group / multi-site corps in the UK Power Networks territory share three structural advantages for solar PV programmes:
- Sub-vertical fit. Multi-site group corporations operate 3-15 campuses under a single corporation board, enabling single-bid Salix applications, consolidated procurement (15-25% unit cost reduction at portfolio scale), and phased delivery across multiple summer windows.
- DNO characteristics. High application volume slows processing. Inner London substations frequently capacity-constrained — pre-application network capacity check strongly recommended.
- Funding alignment. Since the November 2022 ONS reclassification every group / multi-site corp in London + South East + East England has full access to Salix Decarbonisation Loans (interest-free, up to £600k per project) and PSDS Phase 4 capital grants. GLA Mayor of London Net Zero by 2030 framework provides additional capital pots for London colleges; UKPN runs Flexibility Markets that battery storage at FE estate can participate in.
Named group / multi-site corps on the UK Power Networks network
We've delivered or scoped solar PV for the following group / multi-site corps in the UKPN territory:
- Capital City College Group
- New City College
- United Colleges Group
- South Thames Colleges Group
- Plumpton College
- Cambridge Regional College
G99 connection planning
For group / multi-site corps on UKPN, the G99 grid connection timeline typically runs 17 weeks (15-19 weeks observed range) for installs in the 500 kW - 2.5 MW (portfolio) band. Plan the application within the first 8 weeks of project kickoff — DNO timeline is almost always the critical-path item.
Detailed regional DNO guide: UK Power Networks G99 connections for college solar.
Funding stack for group / multi-site corps on UKPN
- Salix Decarbonisation Loan — interest-free, repaid from savings, 8-year term
- PSDS Phase 4 capital grant — typically bundled with heat decarbonisation for highest scoring
- FE Capital Transformation Fund — embedded sustainability inside major refurb
- T-Level Capital — for new workshop builds with embedded solar
- MCA decarbonisation grants where applicable to specific campuses