Offsite Direct Wire Power Purchase Agreement (RAF Wittering)

Objectives: The Ministry of Defence (MOD) is seeking Power Purchase Agreements (PPA) to reduce unit electricity costs, increase site energy resilience, limit price volatility risk from its energy portfolio, and support emissions reductions aligned with Government policy.

PPA Type: Renewable energy supply for the RAF Wittering site via off-site direct wire connection.

Target contract start date: 14/02/28.

Volume: Procure power generation to meet up to approximately 2-5GWh/year of electricity consumption for RAF Wittering (total annual consumption of approximately 7.9GWh/year). Provision of higher offtake volumes is dependent on the ability to demonstrate value for money in energy costs achieved and resilience provision. Further, the site demand is expected to grow over the next ~15yrs, potentially 4-fold in electrical demand as more capability is brought onto site and the site decarbonises. Input on ability to support increasing scaling of volume, whilst minimising customer risk is sought.

Sites: This procurement is for one site only at RAF Wittering, Peterborough through an off-site arrangement using a private wire.

Contract duration: Seeking competitive energy prices for up to 25 years, with potential option to extend.

Technology: Open to competitive proposals for Renewable Energy Guarantee of Origin (REGO) compliant technologies.

The details provided in this notice are early indicative estimates and may be subject to change/refinement as a result of ongoing analysis and data collection.

Previous market engagement: A virtual two‑hour supplier engagement session was held on 04/03/2025 to test early market views on high‑level PPA options and to support MOD’s understanding of market capabilities. Suppliers expressed strong appetite to engage and highlighted key considerations including avoiding over‑specification, clarifying roles and responsibilities, and addressing grid‑connection and MOD site factors that will shape the delivery approach.

Social Value (SV): SV is a mandatory consideration in UK Government procurement. Any potential future tender will be assessed against the Government’s Social Value Model themes, ensuring delivery approaches contribute meaningful economic, social, and environmental benefits. Specific Model Award Criteria (MACs) to be utilised within the tender process will be confirmed should the requirement be taken forward.

Modern Slavery: MOD must consider the potential of modern slavery at all stages of the procurement lifecycle. Please note this information will be required as part of the procurement process but is not required at this stage.