American Institute of Certified Planners (AICP) Practice Exam

What works best to conserve energy?

1. Voluntary rationing of fuel

2. Solar heating

3. Telecommuting

4. Battery powered vehicles

The correct answer is: Voluntary rationing of fuel

The most effective option for conserving energy among the choices provided is solar heating. This approach utilizes renewable energy from the sun to warm water or buildings, significantly reducing the reliance on traditional energy sources such as fossil fuels. By harnessing solar energy, not only can it lead to substantial cost savings in energy bills, but it also contributes to a reduction in greenhouse gas emissions, making it an environmentally friendly solution. While voluntary rationing of fuel can help in reducing immediate consumption and may raise awareness about energy use, it is often a temporary measure and may not lead to sustainable conservation practices in the long run. Telecommuting can reduce energy consumption associated with commuting and office environments, but its impact on overall energy conservation is less direct than the use of renewable energy technologies like solar heating. Battery-powered vehicles are an important step toward reducing emissions from transportation but still rely on the energy grid, which may be powered by non-renewable sources unless specifically charged using renewable energy. In summary, solar heating stands out as a proactive and sustainable solution that directly contributes to energy conservation.