Clean technology, commonly referred to as cleantech, is a term used to describe environmentally-friendly technologies that work to improve a company's operations, performance, productivity and efficiency while lowering their costs, energy consumption, inputs, waste or pollution. Stocks issued by cleantech companies typically attract investors interested in socially conscious efforts and sustainability, while also appealing to investors seeking to gain a competitive return. Cleantech includes six types of industries: energy, water and waste water, advanced materials, energy efficiency and manufacturing, and transportation and agriculture. Energy is the largest of the six, with companies focused on solar power, wind power, hydro power, biofuels and geothermal energy.

  1. How can I make my home run on energy that is 100% off the grid?

    Taking a home 100% off the grid requires paying attention to all sources of energy in the home. These sources include more ... Read Answer >>
  2. If my home runs power off the grid, what is the specific environmental impact?

    Going off the grid, or using solar energy, can result in much more than saving the homeowner money. It can help the planet ... Read Answer >>
  3. How much of the United States' energy comes from oil and gas?

    Examine the energy sources for the United States, and learn how much of the total U.S. energy supply comes from the oil and ... Read Answer >>
  4. What are the main substitutes for oil and gas energy?

    Read about some of the major substitute sources of energy that compete with fossil fuels -- oil, natural gas and coal -- ... Read Answer >>
  5. How much of the United States' energy is produced within the country?

    Learn how much of the United States' energy is produced within the country. Fracking has been a game changer in terms of ... Read Answer >>
  6. What factors are the primary drivers of share prices in the oil and gas sector?

    Learn the primary drivers behind changes in the share prices of the oil and gas sector. The oil and gas sector is a cyclical ... Read Answer >>
Related Articles
  1. Managing Wealth

    Clean Or Green Technology Investing

    Innovations in energy and consumption grow as companies adopt them to reduce costs.
  2. Investing

    Cleantech Is More Than Just Renewable Energy

    Cleantech is much more than just “sexy” renewable energy like solar and wind. Covering a wide range of ideals, spending in the sector is poised to continue growing in the years ahead. That might ...
  3. Investing

    The Big Play In Pollution Control

    As the world grapples with growing pollution and environmental concerns, the mitigation industry stands to profit. For investors, this often ignored subsector of cleantech could be the way to ...
  4. Investing

    Going Green With Exchange Traded Funds

    As investors become more environmentally conscious, the exchange traded fund market is following.
  5. Investing

    Green Energy: Why We're Still Not Using It

    The reason we are still dependent on fossil fuels for energy is about as old as the fossils themselves. Read on to find out why.
  6. Investing

    The Most "Wasteful" Industries

    Some industries require a lot more input to produce their product, and investors should be aware of the impact.
  7. Investing

    How Low Oil Prices Affect Alternative Fuels

    Cheaper oil may make renewable energy sources such as solar and wind power less attractive.
  8. Small Business

    Make Sure Your Business Complies with These 3 Environmental Laws

    Discover why 1970 is considered the year of the environment, and learn about several major environmental laws with which businesses must comply.
  9. Investing

    5 Water Stocks To Tap Into

    An increase in population and pollution has made water a fragile resource.
  1. Cleantech

    A shortened form of "clean technologies", a term used to describe ...
  2. Alternative Energy ETF

    An exchange-traded fund that invests in companies engaged in ...
  3. Efficiency

    A level of performance that describes a process that uses the ...
  4. Internet of Energy - IoE

    The Internet of Energy (IoE) refers to the automation of electricity ...
  5. Wholesale Energy

    A term referring to the purchase and sale of energy products ...
  6. Operational Efficiency

    Operational efficiency is primarily a metric that measures the ...
Hot Definitions
  1. Perfect Competition

    Pure or perfect competition is a theoretical market structure in which a number of criteria such as perfect information and ...
  2. Compound Interest

    Compound Interest is interest calculated on the initial principal and also on the accumulated interest of previous periods ...
  3. Income Statement

    A financial statement that measures a company's financial performance over a specific accounting period. Financial performance ...
  4. Leverage Ratio

    A leverage ratio is any one of several financial measurements that look at how much capital comes in the form of debt, or ...
  5. Annuity

    An annuity is a financial product that pays out a fixed stream of payments to an individual, primarily used as an income ...
  6. Restricted Stock Unit - RSU

    A restricted stock unit is a compensation issued by an employer to an employee in the form of company stock.
Trading Center