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

    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 ...
  3. Investing

    Going Green With Exchange Traded Funds

    As investors become more environmentally conscious, the exchange traded fund market is following.
  4. 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.
  5. Investing

    Big Buys In Renewable Energy

    As oil prices have fallen, so has the alternative energy sector. For investors with a long-term focus, the time could be right to add the sector to an energy portfolio.
  6. Insights

    4 Things to Know About the Future of US Energy

    The fracking revolution has underpinned the U.S. energy industry in recent years, with positive trends likely to continue into the next decade.
  7. Insights

    Pros And Cons Of Solar Energy

    While solar energy technology has some disadvantages that make it somewhat expensive in certain markets, it is becoming an increasingly cost-competitive alternative to fossil fuels.
  8. Investing

    Amazon Announces Its Largest-Ever Renewable Energy Project

    The Seattle company has five renewable energy projects to power data centers in its cloud business. A shift to renewable energy sources should drastically cut energy bills at these centers.
  9. Insights

    The Economics Of Solar Power

    Even with the massive strides made in technological innovation, sustainable energy has failed to usurp traditional fossil fuels.
  10. Investing

    The US Is Becoming More Energy Independent

    Rising production and abundant shale oil and gas reserves are moving the US towards energy independence, which could happen by 2020
  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. Internet of Energy - IoE

    Internet of Energy (IoE) refers to the automation of electricity ...
  4. Efficiency

    A level of performance that describes a process that uses the ...
  5. Wholesale Energy

    A term referring to the purchase and sale of energy products ...
  6. Energy Improvement Mortgage

    A mortgage that sets money aside for home improvements that will ...
Hot Definitions
  1. Subprime Auto Loan

    A type of auto loan approved for people with substandard credit scores or limited credit histories. There is no official ...
  2. Racketeering

    A fraudulent service built to serve a problem that wouldn't otherwise exist without the influence of the enterprise offering ...
  3. Federal Debt

    The total amount of money that the United States federal government owes to creditors. The government's creditors include ...
  4. Passive Management

    A style of management associated with mutual and exchange-traded funds (ETF) where a fund's portfolio mirrors a market index. ...
  5. Series 7

    A general securities registered representative license administered by the Financial Industry Regulatory Authority (FINRA) ...
  6. Compound Interest

    Compound Interest is interest calculated on the initial principal and also on the accumulated interest of previous periods ...
Trading Center