Energy Efficiency 1 : Energy efficiency is a ratio of energy input to useful energy output, often expressed as a percentage. It measures how much energy of one kind is converted into usable energy of another kind
JRank, Pollution Issues, Net Industries, Powered by JRank (http://www.jrank.org/), IL, USA 2012. At this website, each item of glossary is a linked by itself to a detailed articles on the glossary. JRank is a new type of site search engine. It's fast, easy, accurate, and requires no installation on your web host. To date, JRank has indexed over 40 millionpages! We built it on popular, open-source tools to leverage the best of existing search technology. http://www.pollutionissues.com/A-Bo/index.html, (Pollut - Amer) {118}