Garbage Disposal & Sanitation Systems Ltd.
Zero Waste Energy Conservation
26 October 2012
Benchmark
Compare your baseline figures and costs with the good practice and typical practice figures shown
below. Use these benchmarks when setting your targets. You should consider fossil fuels (if used) and
electricity consumptions separately; this will help you to pinpoint which needs more urgent attention.
| Gas/Oil Consumption (kWh/m2) | Electricity consumption (kWh/m2) | Emissions (kgCO2/m2) | ||||
| Good Practice | Typical Practice | Good Practice | Typical Practice | Good Practice | Typical Practice | |
| Naturally ventilated smaller office | 79 | 151 | 33 | 54 | 32.2 | 56.8 |
| Naturally ventialted openplan office | 79 | 151 | 54 | 85 | 43. | 72.9 |
| Air conditioned standard office | 97 | 178 | 128 | 226 | 85 | 151.3 |
| Air conditioned headquarters | 107 | 201 | 234 | 358 | 143.4 | |
Source of data: Energy Use in Offices (ECON19), Carbon Trust, 2003
If possible, ensure energy is purchased centrally, and get renewal quotes from existing and alternative suppliers annually. Investigate taking all, or a percentage, of your energy from renewable sources or ‘green tariffs’. Top tips for reducing energy usage in offices are detailed below.
We’ll be looking at specific tips for reducing energy consumption in the next installment on zero waste.