How can we save energy on heating and cooling at work?

Unless you work in a factory, chances are heating, cooling and ventilation probably use more energy than anything else.

All too often, workplaces are over-heated or over-chilled, meaning that getting it right is as much about worker comfort and welfare as energy-efficiency. For every 1ºC that a workplace is overheated, 8% is added to heating costs, adding to greenhouse gas emissions, so there’s plenty of scope for action.

Things you can do now

• Make sure that temperature controls are set for the right times and temperatures, and that workers know how they should be used.
• Check that there’s a clear gap between the trigger temperatures for heating and cooling. You’d be amazed how often they end up both on at once.
• Make the most of natural cooling and ventilation. Opening windows on opposite sides of a building to create a draft, and leaving vents open at night can be very effective, provided it doesn’t create a security risk. Closing curtains and blinds at night can keep heat in or out. Angle horizontal blinds to throw light onto the ceiling to make the most of natural light while screening out heat and glare.
• Encourage staff to report drafts or broken windows so they can be dealt with promptly.
• Make sure electrical equipment is switched off when not needed – computers and other office machinery generate a great deal of heat.

Bigger ideas

• Investment in draft-proofing, insulation or double-glazing can improve energy efficiency.
• If your employer is looking into an office move, push for energy-efficiency to be part of the decision-making process. State of the art buildings can use natural ventilation and efficient insulation to maintain a comfortable temperature.
• Individual thermostats on radiators, or more controls for different areas can improve efficiency.

You’ll find more ideas on cutting energy use on heating and cooling in the TUC’s Go green at work handbook.