Wincham HQ: Select run Gaia on their own head office, and cut energy 65%
105,141 kWh down to 36,129 kWh across 15 cabins, over roughly twelve months (13 May 2025 to 30 April 2026). The largest measured saving in our estate, on a site the customer owns and occupies themselves.
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This is Select’s own building
Wincham HQ is Select Plant Hire’s head office, not a client site they fitted on somebody else’s behalf. They bought it for themselves, put it on their own building, and it is the best commercial result we have.
Disclosure, because a QS will find it: the span runs 13 May 2025 to 30 April 2026, but monitoring was not continuous. There is no data for February 2026, and a wifi outage from 2 to 17 July 2025. The figures below cover the monitored period within that span, not every day of it.
The site
| Client | Select Plant Hire, their own head office |
|---|---|
| Site | Wincham HQ, CW9 6DE |
| Power | Grid |
| Cabins | 15 |
| Span | 13 May 2025 to 30 April 2026 (~12 months) |
| Monitoring gaps | February 2026: no data. 2 to 17 July 2025: wifi outage. The span is not continuous. |
The result
whole monitored period
over ~12 months
the rate this customer pays
| Before | 105,141.34 kWh · £31,542.40 at 30p/kWh |
|---|---|
| After | 36,129.29 kWh · £10,838.78 at 30p/kWh |
| Saved | 69,012.05 kWh = 65% · £20,703.62 at 30p/kWh |
| Per cabin | ~91 kWh saved per cabin per week, on the full billed period |
30p/kWh is the rate Select told us they pay on this site. Rates are customer-supplied and range from 24p to 30p across the sites we publish, so a £ figure from one site is not comparable with another. We never average or total £ savings across sites. Standing charge excluded. VAT excluded. Costs shown are consumption only.
Why a twelve-month figure is the one to trust
The same site read 37% across a summer alone (13 May to 31 July 2025) and 65% across the full year (13 May 2025 to 30 April 2026). Savings peak in spring and autumn, so a summer-only window under-reads badly. This is why we publish whole-period figures with their period attached, and never headline a summer. Read the other way round: 37% in the mildest part of the year is a floor, not a ceiling; the physics that produce 65% across the full year say the same mechanism only gets more pronounced once the cabins are working harder. Wincham's summer figure was its least impressive version, not its best case.
What we found
Which circuits ran out of hours, which drying rooms were left on, which appliances drew power nobody had accounted for: that is set out line by line across this project’s monthly reports. We publish the measured result here and leave the itemised list where it was written, rather than summarise it from memory.
Ask us and we’ll take you through what we found on this site: info@gaiagroupuk.com.
What changed
Which load categories went onto contactors here is in the commissioning record for the project. We publish what was controlled and never how the rules were configured, and for this site the commissioning detail has not been written up for publication yet, so we would rather leave it off the page than approximate it.
Ask us and we’ll tell you what went under control here: info@gaiagroupuk.com.
How this was measured
Every saving above is valued at what the equipment actually drew, not at its rated power: the time a load was switched off multiplied by that load’s measured average consumption in the conditions it was running in. That average is taken across every hour in the comparison, including the hours the load drew nothing, so it accounts for the periods a thermostat would have cycled the load off anyway, which makes the figure materially smaller than rated-power arithmetic would give.
Measured against the site’s own benchmark, at circuit level, in kWh. How we calculate a saving.