Renewable

Examples of Renewable in the following topics:

• World Energy Use

  • The most prominent sources of energy used in the world are non-renewable (i.e., unsustainable).
  • In 2011 they received over $500 billion in subsidies—six times more than that received by renewable energy sources.
  • shows a pie chart of world energy usage by category—both renewable and nonrenewable sources.
  • Renewable energy comes from sources with an unlimited supply.
  • In the US, only 10% of energy comes from renewable sources (mostly hydroelectric energy).

• Payback, ROI and renewable energy

  • The long-term financial rewards of renewable energy cannot be understood without comprehending ‘payback' or return-on-investment (ROI), both of which measure profitability in relation to capital expenses.
  • This is not the case with wind, sunlight and many other renewable energy sources.
  • With renewable energy (e.g. wind and sunlight), however, after the expense of conversion machinery is paid for, the electricity or heat obtained is free of charge (minus the cost of maintenance and disposal) while non-renewables maintain the constant expenses associated with: continuous extraction and refinement, waste treatment, maintenance and disposal, and related environmental disasters and healthcare costs.
  • The payback period of the €50,000 investment, which is based on the annual market cost of electricity if the switch to renewable energy had not been made (€10,000) is therefore 5 years (€10,000 x 5 years = €50,000).
  • Again, the ultimate payoff isthat at the end of the payback period, the business receives free electricity (minus maintenance and disposal costs) which is why renewable energy can be a smart investment.

• New Energy Sources

  • Alternative and renewable energy sources can reduce the environmental impact of energy production and consumption.
  • The share of renewables in electricity generation is around 19%, with 16% of global electricity coming from hydroelectricity, and 3% from new renewable sources.
  • Brazil has one of the largest renewable energy programs in the world, involving production of ethanol fuel from sugarcane.
  • While many renewable energy projects are large-scale, renewable technologies can also be suited to rural and remote areas, where energy is often crucial in human development.
  • Ethanol is a quasi-renewable energy source.

• Types of Natural Resources

  • Renewable natural resources: these are resources that can be replenished.
  • Examples of renewable resources include sunlight, air, and wind .
  • A resource is considered to be non-renewable when their rate of consumption exceeds the rate of recovery.
  • Examples of non-renewable natural resources are minerals and fossil fuels.
  • Wind is an example of a renewable natural resource.

• The Potential of Urban Revitalization

  • Urban revitalization is closely related to processes of urban renewal, or programs of land redevelopment in areas of moderate- to high-density urban land use.
  • Title I of the Housing Act of 1949 kick-started the urban renewal program that would reshape American cities.
  • Urban renewal can have many positive effects.
  • Replenished housing stock might signify an improvement in quality; urban renewal may increase density and reduce sprawl, and it might have economic benefits that improve the economic competitiveness of the city's center.

• Sustainability Innovation

  • Sustainability innovation combines sustainability (endurance through renewal, maintenance, and sustenance) with innovation.
  • Sustainability is the capacity to endure through renewal, maintenance, and sustenance (or nourishment), which is different than durability (the capacity to endure through resistance to change).

• Introduction to Cooperative Networking

  • In Australia, a building designer teams with a rival architectural firm, a renewable energy supply business, and a construction company to discuss affordable, energy-efficient homes.

• Energy Policy

  • The administration of Barack Obama has proposed an aggressive energy policy reform, including the need for a reduction of CO2 emissions with a cap and trade program, which could help encourage more clean renewable, sustainable energy development.
  • Renewable energy accounted for about 8% of total energy consumption in the United States in 2009.
  • In the same year, approximately 10% of the electricity produced nationally came from renewable sources.
  • The United States' hydroelectric plants make the largest contribution to the country's renewable energy, producing 248,100MW of the 371,700MW (67%) generated through all renewable energy.
  • Increases in wind, solar, and geothermal power are expected to allow renewable energy production to double in the three-year period from 2009 to 2012, an increase from 8% to 14% of total consumption.

• Present Sources of Energy

  • Present sources of energy include fossil fuels, various types of renewable energy, and nuclear power.
  • The estimates for remaining non-renewable worldwide energy resources vary; the remaining fossil fuels total an estimated 0.4 YJ (1 YJ = yottajoule, or 1024 J) and the the energy available from nuclear fuels such as uranium exceeds 2.5 YJ.
  • The total energy flux from the sun is 3.8 YJ/yr, which dwarfs all non-renewable resources.
  • Renewable energy sources only comprised 16.7% of our energy in 2010.

• Sunset Laws

  • In American federal law parlance, legislation that is meant to renew an expired mandate is known as a reauthorization act or extension act.
  • These were later renewed, but expired again on March 10, 2006, and was renewed once more in 2010.