Front Matter

This front matter contains the guest editors’ preface, series editors’ preface, table of contents, and abstract. Energy efficiency measures are generally less expensive than a renewable energy (RE) system to provide the same amount of energy saved. The Energy Information Administration reports that, on average, a dollar spent on efficiency saves $2 off the cost of a renewable energy system to provide the same amount of energy [IEA, 2011]. But as the saying goes “you can’t save yourself rich” and having installed sophisticated controls and efficient systems, we need some source of energy to power them. eBook keywords: energy, efficiency, renewables, energy supply, daylighting, solar water heating, solar ventilation, solar, heating, cooling, wind power, biomass.