Oil prices dropped by an average of 9.5% in 08/09 compared to the previous winter period 07/08. This will enhance the actual savings.
The mean temperature for East Anglia during winter 07/08 was 5.7°c. The mean temperature for East Anglia during winter 08/09 was much cooler at 3.4°c.
The heating system thermostats are set to 16°, resulting in an increase in the requirement for heating in East Anglia of 22%.
This analysis excludes the purchase and installalation costs of £21,268 in the first year.
Winter 07/08 (pre-fans) total oil usage =£138,337
Winter 08/09 (post-fans) total oil usage = £83,837
Oil use reduction & savings, winter 08/09 = £54,500
Restated savings, inc lower Oil price 08/09 = £49,322
Restated Oil use & savings, inc lower temp 08/09 = £63,144
Airius System running costs per winter season= £793
First Winter Savings = £62,351
- 45.07% - Overall Savings 08/09
- £62,351 - first winter savings
- £21,268 - full system & installation cost
- 3,000m² - floor area
- 5.7˚C - mean temp 07/08
- 3.4˚C - mean temp 08/09
- £793 - Airius running costs per winter season
- Installed into Can Assembly area
- System - 34 units
- Part of the Ardagh Group
Overall savings taking into account lower temperatures and prices in winter 08/09 = 45.07% The full cost of the Airius units is re-couped within a matter of months - first winter savings of £62,351 measured against a total spend of £21,268. - Paul Matten (Plant Engineer)