If you evaluate public sector tenders, you have seen the Carbon Reduction Plan requirement appear with increasing frequency since PPN 06/21 came into force. For procurement teams assessing electrical contractor submissions, the challenge is distinguishing between genuine, measurable carbon reduction commitments and aspirational statements that will never be tracked or evidenced.
This guide explains how electrical infrastructure directly contributes to carbon reduction — and what evidence you should expect from a credible contractor submission.
What PPN 06/21 Requires
Procurement Policy Note 06/21 requires suppliers bidding for central government contracts above the threshold to provide a Carbon Reduction Plan. The plan must include:
- A commitment to achieving Net Zero by 2050
- Disclosure of current Scope 1 and Scope 2 greenhouse gas emissions
- Environmental management measures already in place
- Carbon reduction targets with specific, measurable actions
While PPN 06/21 technically applies to central government, its framework has been widely adopted by local authorities, NHS trusts, housing associations, and multi-academy trusts. For more on how Pro Energise aligns with PPN 06/21, see our sustainability commitment.
How Electrical Infrastructure Reduces Carbon
Electrical contractors contribute to carbon reduction through two distinct channels: reducing the carbon footprint of the buildings they work on, and reducing the carbon footprint of their own operations.
Building-Level Carbon Reduction
The electrical works most directly linked to measurable carbon reduction are:
LED lighting retrofit: Replacing fluorescent and halogen fittings with LED reduces lighting energy consumption by 50-70%. For a typical commercial building, this translates to measurable Scope 2 emission reductions that can be calculated using DESNZ conversion factors. A 10,000 sq ft office replacing 200 fluorescent fittings saves approximately 8,000-12,000 kWh annually — equivalent to 1.7-2.5 tonnes of CO2e. See our LED lighting services for more on how we deliver these programmes.
EV charging infrastructure: Installing workplace EV charging supports the transition from internal combustion engine vehicles to electric vehicles. While the carbon reduction is attributed to the vehicle operator, the infrastructure investment is a measurable contribution to Scope 3 emission reductions. Under PPN 06/21, this counts as an environmental management measure. See our EV infrastructure services for our approach to infrastructure-first planning.
Power infrastructure upgrades: Upgrading distribution boards and electrical infrastructure to support heat pumps, solar PV integration, and battery storage systems enables future decarbonisation. These enabling works are increasingly scored in tender evaluations as evidence of forward-looking carbon reduction capability.
Operational Carbon Reduction
Credible contractors also demonstrate carbon reduction in their own operations:
- Fleet electrification — transitioning service vehicles from diesel to electric
- Waste reduction and recycling rates on project sites
- Supply chain carbon management — sourcing materials from manufacturers with their own carbon reduction commitments
- Office and depot energy efficiency measures
What Documented Evidence Looks Like
The difference between a credible Carbon Reduction Plan and a generic statement is evidence. Procurement evaluators should look for:
Baseline measurement: A contractor should be able to state their current Scope 1 and Scope 2 emissions with specific figures, not estimates. This requires actual energy consumption data from their premises and fleet fuel records.
Post-installation savings data: For LED retrofits and other energy reduction works, the contractor should provide pre- and post-installation energy consumption data using metered readings, not theoretical calculations. The savings should be converted to CO2e using the latest DESNZ greenhouse gas conversion factors. For a recent example, our work with Deanta included pre- and post-installation energy consumption data as part of the LED retrofit handover — demonstrating measurable energy reduction rather than estimated projections.
Specific reduction targets: Targets should be expressed as percentage reductions against a stated baseline year, with interim milestones. A target of "reduce Scope 1 emissions by 30% by 2030 against a 2024 baseline" is credible. A target of "work towards Net Zero" is not.
How Procurement Evaluators Score Carbon Reduction
When scoring carbon reduction in electrical contractor tenders, evaluators typically assess:
- Specificity — are the commitments measurable and time-bound, or vague and aspirational?
- Evidence — can the contractor demonstrate what they have already achieved, not just what they plan to do?
- Relevance — do the carbon reduction measures relate to the services being procured?
- Tracking methodology — how will the contractor measure and report carbon reduction during the contract? A contractor using a platform like Contracts OS can provide real-time environmental tracking and reporting against contract-specific targets.
- Supply chain — does the contractor extend carbon reduction requirements to their own supply chain?
The strongest submissions provide a completed Carbon Reduction Plan template with actual figures, supported by case study evidence showing measured energy savings from previous projects.
Practical Checklist: What to Ask Your Electrical Contractor
Before appointing an electrical contractor on a public sector contract with carbon reduction scoring, ask for:
- A completed Carbon Reduction Plan with current Scope 1 and Scope 2 emission figures
- Evidence of measured energy savings from at least two previous LED retrofit or electrical efficiency projects
- DESNZ conversion factors applied to actual metered data, not theoretical estimates
- Fleet composition data showing current and planned electric vehicle adoption
- ISO 14001 certification or equivalent environmental management system
- A named individual responsible for carbon reporting on the contract
Carbon reduction in electrical procurement is not about grand commitments — it is about measurable, evidenced actions that can be audited. The contractor who provides specific figures and real project data will outscore the one who provides a well-written policy document with no evidence behind it.
Pro Energise Carbon Reduction Plan
Pro Energise's own Carbon Reduction Plan, including Scope 1 and 2 baseline data, is scheduled for publication in Q2 2026. Our interim carbon reduction position is available on request for current tender submissions.