A combination of highly efficient LEDs and a digital control system from Open Technology has achieved 85% energy savings on lighting.

Right now, solar power only comprises 0.23 percent of America’s electricity generation. But that percentage has the potential to skyrocket to 10 percent in the next 30 years, according to a report released Thursday by Environment America Research & Policy Center.

Most of the money in commercial and residential goes to energy-efficiency upgrades, but about a quarter of commercial projects are renewable energy projects.

The aircraft, a heavily modified microlight, uses a conventional four-stroke petrol engine as its main power source and an electric motor connected to a bank of 16 large lithium-polymer batteries built into the wings.

The 40-seat "Bio-Bus" runs on biomethane gas generated through the treatment of sewage and food waste. The eco-friendly vehicle can travel up to 300km (186 miles) on one tank of gas, which takes the annual waste of about five people to produce.

More than 23,000 energy efficiency measures have been installed in rural homes in the UK in the last six months. That’s an almost 3000% increase between April and September this year, according to new statistics from DECC.

Pursuing energy efficient ways will help reduce electricity consumption and save as much as Rs 50,000 crore, according to Power Minister Piyush Goyal.

Lincoln-Sudbury Regional High School kicked off its SEED program with a powerful all-school presentation by Alliance for Climate Education. The ACE Assembly was a natural lead-in for recruiting students to the SEED program, which promotes greenhouse-gas-reducing efficiency upgrades in their community.

Lithium ion batteries power everything these days from smartphones to electric cars. They’ve been a great advance in portable power storage. On the downside, their spread also makes a big contribution to electronic waste dumps often found in developing countries.

No one, not even the world’s largest coal-mining company, will escape from the impending solar energy revolution in India. The Indian government-owned company has announced its latest initiative to expand solar power infrastructure.

The new displays ditch the electrodes, simultaneously making the screen thinner and decreasing its energy requirements.

Solar energy in the United States is becoming a major part of the nation's power sector as installation costs decline, Energy Secretary Ernest Moniz said.

And she practices what she takes care not publicly to preach. Famous for going round the Palace, switching off the lights, she was quick to move over to the often unpopular energy-saving light bulbs.

Building-integrated solar photovoltaic modules are fast catching up in the rapidly evolving construction business where emphasis on energy efficiency and self-reliance are becoming increasingly popular.

Scientists estimate that 20 percent of all the world’s energy is spent on light, especially on illuminating towns and cities. Even in a technologically advanced country like Denmark, many of the street lamps are antiquated and energy inefficient.

The German Government has revealed a new national plan to save more energy for homes and businesses across the country.

The new “energy centre” a building that houses the heating and electricity equipment, will save the Gloucestershire Hospitals NHS Foundation Trust around £10 million over the next 18 years.

There will be up to £30 million in vouchers available to help with the costs of things such as insulation, double glazing, boilers and floor insulation.

Researchers at Cardiff University are looking into new ways of creating a “super grid” that will allow the EU to share the energy it creates.

To give those customers more options for geeking out on energy use, SolarCity has a new app, MySolarCity, which shows real-time home energy usage and offers basic energy assessments, as well as providing social network via which users can share their solar experiences.

Whether it was planting millions of trees, turning food waste into electricity or using smart grid technology to slash its energy use, British supermarket Sainsbury's has been slowly but surely beefing up its sustainability credentials.

“The introduction of solar as the scheme’s first renewable energy product is a fantastic addition to Warm Up North’s range of energy efficiency solutions that will allow even more households to save energy and money.

Every shower, you’ll save enough electricity to power a 60-watt light bulb for eight hours, or a 20-watt LED for 24 hours. Every year, you’ll save the amount of water it takes to wash more than 70 loads of laundry.

The intelligent streetlight system, designed by Dutch Delft University of Technology, using motion sensing technology that automatically dims streetlights to 20% power when no pedestrians or vehicles are in the vicinity—and the idea is ready to go commercial.

The new "L-CSC" supercomputer at the GSI Helmholtz Centre for Heavy Ion Research is ranked as the world's most energy-efficient supercomputer.

Amazon has been under pressure for a while to get its act together when it comes to renewable energy (just last week we wrote about how shopping on Amazon is powered by coal).