In its most basic form, energy efficiency is using less energy to provide the same level of energy service. Efficient energy use is achieved primarily by means of a more efficient technology or process rather than by changes in individual behavior. That being said, the following strategies contribute to the goal of becoming more energy efficient:
• Passive design strategies can dramatically affect building energy performance. These measures include building shape and orientation, passive solar design, and the use of natural lighting.
• Develop strategies to provide natural lighting. Studies have shown that it has a positive impact on productivity and well being.
• Install high-efficiency lighting systems with advanced lighting controls. Include motion sensors tied to dimmable lighting controls. Task lighting reduces general overhead light levels.
• Use a properly sized and energy-efficient heat/cooling system in conjunction with a thermally efficient building shell. Maximize light colors for roofing and wall finish materials; install high R-value wall and ceiling insulation; and use minimal glass on east and west exposures.
• Minimize the electric loads from lighting, equipment, and appliances.
• Consider alternative energy sources such as photovoltaics and fuel cells that are now available in new products and applications. Renewable energy sources provide a great symbol of emerging technologies for the future.
• Computer modeling is an extremely useful tool in optimizing design of electrical and mechanical systems and the building shell.
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