Reported fuel reduction per degree day per guest, cooking gas excluded.
Period clarification needed
The published summary says “eight months” and also describes a December to August comparison.
An individual OH4 installation result. This is not a forecast for your building.
An installation in the plant rooms
The operators wanted to reduce energy use while maintaining hotel and spa service. The published account describes an installation requiring access to the plant rooms, with no downtime on heating or hot water.
The performance comparison uses monthly consumption and guest numbers, with cooking gas excluded.
The evidence behind the result
| Source data | Monthly energy consumption supplied by the client. |
|---|---|
| Comparison method | Each reported month compared with the same month of the previous year. |
| Adjustments | Degree days for weather and occupancy numbers, giving fuel use per degree day per guest. |
| Exclusion | Cooking gas excluded from the reported percentage. |
| Reported result | 26.1% on the adjusted, cooking-excluded basis. |
| Reporting-period issue | The source uses both “eight months” and “December to August”. The included months and exact dates need confirmation. |
This is not presented as an annual result. The included months and the calculation basis need to be confirmed before the figures are used in an internal business case. The reported percentage has not been changed.
Read the source
V1 Energy Solutions is a UK-based reseller of the OH4 Energy Saving System, working with clients worldwide. This published case study concerns an OH4 installation. The original report may name OH4 or its installation partner.
The original report contains additional energy and emissions totals. Those figures need to be read alongside the period and adjustment method, rather than treated as an annual forecast.
Separate the loads before you compare
For a hotel or spa pilot, agree how cooking, hot water, pool use and occupancy will be handled in the measurement plan.
Review the installation and measurement plan
Related evidence: 1 Hotel Mayfair · All case studies