Renewable energy articles and news

  • Full Screen
  • Wide Screen
  • Narrow Screen
  • Increase font size
  • Default font size
  • Decrease font size

Popularity of heat pumps increases

E-mail Print PDF

The prices of traditional types of thermal service regularly increase. The fact that they do harm to the environment has to be reconsidered. Changes gradually happen, and now the whole world watches renewable energy sources. In a race of alternative energy sources, the thermal pump has proved the efficiency as the eco-friendly option of usual house heating. However, thermal pumps can differ according to characteristics.

The pumps are capable of absorbing thermal energy from the air, even at rather low subzero temperatures.

Depending on features of the construction, heat pumps are divided into two types:

  • Air-to-water pumps in heating contour of which the liquid circulates,
  • Air-to-air when the house is warmed up with air.
Last Updated on Monday, 10 April 2017 12:29

Renewable energy more attractive to investors than fossil fuels

E-mail Print PDF

In 2016, renewable energy sector, excluding large hydro, experienced decline in global new investment. According to the latest report by the Frankfurt School for Climate & Sustainable Energy Finance global new investment in renewables fell by 23% to $241.6 billion in 2016.

Even despite this decline in investment, renewable energy sector accounted for the record installation of new renewable power capacity. Solar, wind, biomass, geothermal and small hydro were at 138.5 GW of total capacity, up from the 127.5 GW in 2015.

The numbers for 2016 accounted for 55% of all the generating capacity added globally, which represents the highest proportion in any year to date. For the fifth consecutive year, investment in renewable energy sector was roughly double the investment in fossil fuels.

Fossil fuels still rule the global electricity generation but in 2016, the percentage of electricity from renewable energy sources rose to 11.3% compared to 10.3% in 2015.


What makes hydropower so reliable?

E-mail Print PDF

Hydropower is renewable energy source with a very long history of use. In fact, the world's first hydroelectric power plant began operating in 1882, on the Fox River in Appleton, Wisconsin. One extremely important factor that makes hydropower so reliable is the longevity of hydroelectric power plants.

According to the Energy Information Administration (EIA) hydroelectric power plants are the oldest power plants still in use in United States with the average operating time of the hydroelectric facility in United States being 64 years.

EIA recently reported that the 50 oldest electric generating stations in the U.S. are all hydroelectric power plants, all of which have been operational since 1908.

Despite this longevity and reliability, hydropower still only accounts for approximately 7 percent of U.S. electricity generation each year.

Last Updated on Wednesday, 22 March 2017 12:05

How can renewable energy help rural areas?

E-mail Print PDF

Despite the fact that we live in 21st century, in the age of computers and a variety of high tech gadgets, there are still more than 1.2 billion people on the planet who do not have access to electricity. These people mostly live in isolated and rural areas that are not connected to the main electric grid. Is renewable energy solution to electricity in these areas?

The answer is yes, in this I firmly believe. And the solution to this issue lies in micro-scale power generation. Renewable microgrids are the most efficient solution to these areas.

Many countries could provide small power grids for their isolated and rural communities. The power would originate from renewable energy sources such as hydro, wind or solar.

These communities do not require large and expensive power stations but rather renewable energy powered microgrids to provide enough power for people that live in these areas.

Last Updated on Tuesday, 07 March 2017 08:27

Fossil fuels will soon be overpowered by renewable energy

E-mail Print PDF

Yes, fossil fuels such as coal and oil still rule the global energy market and renewable energy source still cannot satisfy ever-growing demand for power. But there are many positive signs that things could change in not so distant future.

Climate change cause is often mentioned as the main driving force behind the recent surge in renewable energy technologies. This is only partially true because renewable energy technologies are becoming increasingly relevant in one area that really matters - cost-competitiveness.

Take solar power for instance. The recent report from Guardian says that the cost of solar power have dropped by staggering 85% in the last seven years. Wind power is also becoming cheaper, there are more and more electric vehicles in the roads, and things are really shaping nicely for global renewable energy industry.

Last Updated on Monday, 06 February 2017 13:49

Follow me on Twitter

Other helpful websites

Wikipedia Scholarpedia Alternative Energy HQ can easily write your essay on similar topics. This writing service offers original research papers about renewable energy.
You are here: