Category: General

Device Captures Energy From Earth’s Infrared Emissions To Outer Space

A New renewable energy source? Physicists at the Harvard School of Engineering and Applied Sciences (SEAS) envision a device that would harvest energy from Earth’s infrared emissions into outer space. Heated by the sun, our planet is warm compared to the frigid vacuum beyond. Thanks to recent technological advances, the researchers say, that heat imbalance […]

How Renewables are Winning – New Optimistic Report

The massive growth experienced by the renewable energy sector, and the wind power and solar power industries in particular, point to a critical shift in the way the world is obtaining its energy. As our energy needs are unlikely to decrease as the world’s population increases, finding and developing renewable, clean sources of energy is […]

Global New Investments In Renewable Energy By Technology – 2012

In 2012, solar power was the leading sector by far in terms of money committed; at USD 140.4 billion, solar accounted for more than 57% of total new investment in renewable energy. Wind power was second with USD 80.3 billion, representing almost 33%. The remaining 10% of total new investment was made up of bio-power […]

Growth of Global Solar and Wind Energy Still Bigger Than Other Renewable Energy Technologies

Solar and wind continue to dominate investment in new renewable capacity. Global use of solar and wind energy grew significantly in 2012. Solar power consumption increased by 58 percent, to 93 terrawatt-hours (TWh), while wind power increased by 18.1 percent, to 521.3 TWh. Although hydropower remains the world’s leading renewable energy, solar and wind continue […]

Hybrid Fossil Fuel/Renewable Power Plants

Another way for renewables to integrate with utility power grids is through the hybrid combination of fossil fuel and renewable technologies at the power plant level. Some experts expressed optimism that such hybrid technologies would become a significant part of future energy systems, although few scenario models incorporate such hybrids. Said one power technology expert, […]

Electricity Shares of Renewable Energy in Recent National and Regional Scenarios Of EU And US

The table below shows the estimated shares of Renewable Energy in the EU according to different Scenarios. It also shows the current status in the left column. Country/Region and Current Share Scenario By Year Electricity Share Europe (21%) EC (2009) “Energy Trends 2030” 2030 36% IEA WEO (2012) “New Policies” 2035 43% EREC (2010) RE-thinking […]

Is Renewable Energy More Expensive Than Conventional Energy?

In energy scenarios, energy systems are mixes of fossil fuels, renewable energy, and nuclear power, combined with models of future infrastructure (e.g., power grids, buildings, cars, and factories) and levels of future energy demand (accounting for population, economic growth and structure, and energy efficiency). Many other factors enter the picture, such as future fossil fuel […]