Dorset Police and Devon & Cornwall Police share an alliance across three force areas. This was the largest single study in the programme. Dynamon used ZERO to model 1,541 vehicles, size depot chargers for all 81 sites, and map daily energy demand from Exeter to the Isles of Scilly.
Fleet
Commissioned by
Key findings
- 1,541 vehicles modelled from 1,704 registered across three force areas.
- 75% of the modelled fleet can complete at least 95% of their journeys on a current EV.
- 81 sites all need depot chargers, from Exeter to the Isles of Scilly.
- 296 chargers recommended: 221 at 11 kW, 61 at 50 kW, 11 at 100 kW and 3 at 150 kW.
- 17,441 kWh a day at Exeter, against 2 kWh a day on the Isles of Scilly.
“By combining Dynamon’s analysis with real operational fleet data and input from police subject matter experts, this project provides a robust evidence base for understanding the scale of police fleet electrification and the investment needed to deliver it.”
Kate Kirk-Walsh, Net Zero Projects Manager, Midlands Net Zero Hub
The challenge
Dorset Police and Devon & Cornwall Police operate as an alliance across three force areas. Together they registered 1,704 vehicles. Of those, 1,541 had enough telematics to model. The fleet is spread across 81 sites, and every one of them needs depot chargers.
Daily energy demand runs from 17,441 kWh at Exeter to 2 kWh on the Isles of Scilly. The charging plan has to cover both ends of that range, and every site in between.
The approach
Dynamon imported the alliance's telematics into ZERO and simulated each vehicle's real journeys against current EV models. That showed which vehicles can move to electric on the journeys they already run.
ZERO then sized the depot chargers for each of the 81 sites and worked out the power demand those chargers would place on the local supply. The result is one combined plan for Dorset, Devon and Cornwall, with a charger mix and a daily energy figure for every site.
The results
Of the 1,541 modelled vehicles, 898 complete 100% of their journeys on a current EV. A further 259 complete 95–99%. Together, 1,157 vehicles (75% of the modelled fleet) can complete at least 95% of their journeys on a current EV.
All 81 sites need depot charging. ZERO recommended 296 chargers.
Site demand still spans the full range. Exeter needs 17,441 kWh a day. The Isles of Scilly need 2 kWh a day. The same method produced both figures, so the alliance can plan grid connections site by site.
- 221 chargers at 11 kW
- 61 chargers at 50 kW
- 11 chargers at 100 kW
- 3 chargers at 150 kW
Part of a national programme
This study is one of 12 emergency-service fleet reports Dynamon produced for the Midlands Net Zero Hub and the Department for Energy Security and Net Zero, with the Home Office. It is the largest single study in the programme.
Across those fleets, about 7,500 vehicles were registered at 480 locations, and about 6,400 were modelled on 26.5 million miles of real telematics. 82% of the modelled vehicles, about 5,300, can go electric at their next replacement while completing 95% or more of their journeys. The programme recommended 1,563 depot chargers in total.
Separate regional studies in Nottinghamshire, South Yorkshire and West Yorkshire looked at police, fire and ambulance services sharing electrical infrastructure. At suitable co-located sites, shared infrastructure could cut grid upgrade costs by around 20%.
Midlands Net Zero Hub has published the national assessment of all 48 UK police forces and agencies. It estimates around 18,300 charge points across more than 2,000 police sites, and an investment of about £1.4 billion. Around 80% of that cost is grid connections and electrical upgrades. Dorset Police and Devon & Cornwall Police received access to ZERO for further scenario planning.
Dorset Police and Devon & Cornwall Police now have one electrification plan for three force areas: which vehicles can switch, and what each of the 81 sites needs, from Exeter to the Isles of Scilly.