1. Key Passive Solar Design Concepts

... active-and-passive solar hot water technologies have different location-specific economic cost benefit analysis implications. Fundamental passive solar hot water heating involves no pumps or anything electrical. ...

2. Sustainability

... according to the particular circumstances under consideration History The first book with the title Ecological Economics was published in Europe by Juan Martinez-Alier (Blackwell, Oxford, 1987). It traces ...

3. Solar Desalination and Disinfection

... are the most economical for decentralized domestic purposes, while active multiple effect units are more suitable for large-scale applications.  Solar water disinfection (SODIS) involves exposing water-filled ...

4. Solar Lighting

... climate and economics, making it hard to generalize from single studies.  ...

5. Energy conservation

... and organizations that are direct consumers of energy may want to conserve energy in order to reduce energy costs and promote economic security. Industrial and commercial users may want to increase efficiency ...

6. Energy Conservation Overview

... the electricity itself. Other studies have emphasized this. A report published in 2006 by the McKinsey Global Institute, asserted that "there are sufficient economically viable opportunities for energy-productivity ...

7. Recycling History

... main driver for these types of recycling was the economic advantage of obtaining recycled feedstock instead of acquiring virgin material, as well as a lack of public waste removal in ever more densely-populated ...

8. Recycling

... whether recycling is economically efficient. Municipalities often see fiscal benefits from implementing recycling programs, largely due to the reduced landfill costs. A study conducted by the Technical ...