Heating & Cooling

Overview

Heating and cooling have a significant impact on climate change. For instance, it is estimated that air conditioning consumes 20% of the electricity used in buildings (Cooling Your Home but Warming the Planet). Since most electricity is produced using non-renewable sources, this has the effect of increasing climate change. It creates a dangerous cycle in which cooling buildings ultimately raises temperatures in the environment, which creates additional demand for cooling, further heating the planet, and so on.

Heating likewise contributes to climate change, with an estimated 10% of all carbon emissions in the United States coming from heating and cooking in homes and businesses (The Impact of Fossil Fuels in Buildings).

Heating & Cooling at the Field Station

The field station uses passive techniques and good design to reduce heating and cooling requirements.

The field station is equipped with trombe walls which capture/release energy depending on the season. These walls face south and are painted black. They are covered with a pane of glass which creates an air pocket between the wall and the glass. During the winter, these walls heat up and that heat radiates into the building all day and well into the night. During the summer, those walls can be covered with a blind to reduce heat absorption during the day, and then uncovered at night when the heat from the building radiates out into the environment.

In addition, the field station is equipped with cooling towers that help cool the buildings in the summer. These towers create a convective current in which hot air rises up and out the tower drawing cooler air up from the ground. Effective insulation, tight seals around doors and windows, and white roofs that reflect sunlight also contribute to a reduced need for heating and cooling.

Trombe wall

Trombe wall

Covered trombe wall in the summer

Covered trombe wall in the summer

Heating & Cooling and You

There are numerous ways to reduce heating/cooling energy usage. One of the simplest ways is to set your thermostat at 68 degrees in the winter and 78 degrees in the summer. You can save additional energy in winter by further lowering the temperature when you are away or sleeping, and in summer by raising the temperature when you are away (Thermostats). Programmable thermostats can help automate this. There are numerous other ways such as adding insulation, properly sealing your home, and purchasing high-efficiency furnaces/air conditioners.