The daily energy consumption and production data of Green Office® Meudon is gathered by the SI@GO software solution then analysed in detail. Since its inauguration three years ago, it has become clear that Green Office® is fulfilling its pledges. This positive-energy building annually generates more energy than it consumes, thus stealing a march on 2020 RBR thermal regulations. It is able to handle changing usage patterns, shifts in the weather and other imponderables.
- The third year of operation culminated in 10% more energy being produced than consumed.
- For the first time, Green Office® Meudon consumed less energy than projected when being designed.
- Power consumption fell further, by 10% relative to the prior year.
THE RIGHT CONCEPT WITH THE RIGHT RESULTS
These findings show that Bouygues Immobilier's expertly designed Green Office® concept is the best solution for achieving both comfort and energy efficiency.
To generate energy, Green Office® uses two types of technology:
- Cogeneration, which produces heat and electricity at the same time,
- Photovoltaic energy, using high-performance panels, which, despite fewer hours of sunshine than usual in the year under review, produced power in line with expectations.
On the usage side, the building's design reduces energy demand while ensuring optimum comfort for occupants.
GREEN OFFICE® MEUDON, YEAR THREE: KEY FIGURES (KWHFE/M²/YEAR)
|Year 3 of operation||Theoretical value
|Adjusted consumption (cogeneration and photovoltaic power)||59.5||62|
|Consumption, heating only||31.2||23,1|
WHAT ARE "ADJUSTED VALUES"?
The figures disclosed are "adjusted values". To ensure applicability, measurements are restated on a monthly basis using a special context-based weighting.
For example, if temperatures are especially mild during the year, demand for heating will naturally decline. Actual consumption must therefore be revised up in accordance with average temperatures recorded in prior years.
Similarly, heat generated by occupants (e.g. incidentally through the use of office equipment) is deducted. Adjustments are also made for number of business days and working hours where higher than initially forecast.