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.

Các nhà nghiên cứu tại Đại học Ohio, Hoa Kỳ đã chế tạo được pin mặt trời sử dụng chất màu nhạy quang, tích trữ năng lượng bằng cách “hít thở” không khí để phân tách và biến đổi lithium peroxide.

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.

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.

To encourage agencies, organizations and people to widely use energy saving devices and solutions, Tien Giang province has built many pilot models, supported energy saving solutions in various areas such as office lighting, public lighting, households, and application in intensive crops.

More than 14 energy conservation and 40 industrial promotion centers have been established in the whole country in order to promote saving and using energy efficiently by direct consulting for business. However, until now, half of them have only played propagandizing roles.

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 Victorian Labor Party has sought to underline its renewable energy credentials by vowing to help the town of Newstead, near Bendigo, to become 100 per cent renewable energy by 2017, and become the state’s first “solar town”.

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).

With the number of Internet connected devices rapidly increasing, researchers from Melbourne are starting a new research program to reduce energy consumption of such devices.

According to Lisa Rathke of the Associated Press, energy-saving program Efficiency Vermont has helped ski resorts all over the state make huge strides, with 2,300 new energy-efficient snowmaking guns replacing older wasteful ones.

A mirror that sends heat into the frigid expanse of space has been designed by scientists to replace air-conditioning units that keep buildings cool on Earth.

According to the EPA, using recycled aluminum only uses 5% of the energy and emissions that are needed to extract new aluminum.

Công ty Sunfire GmbH của Đức có trụ sở tại Dresden cho biết họ đã phát triển một thiết bị có khả năng tổng hợp nước và CO2 thành các nhiên liệu gốc dầu.

First, British household budgets would benefit from a £5bn saving every year. This means an average annual saving of around £335 for British families.

This researcher has developed a reactor based on conical spouted beds which, by means of flash or rapid pyrolysis, produces fuels and raw materials using various types of waste.

Keep electric storage heaters on all the time. Our research also found that few people with electric storage heaters fully understand how they work (only 38%). This means that households with electric heating could be paying through the nose by not taking advantage of cheaper night rate electricity.

Big Energy Saving Week – a joint campaign between Citizens Advice, Energy Saving Trust, and the Department of Energy and Climate Change (DECC) – reveals 74 per cent of Brits are still worried about their energy bills.

John Colucci, vice president of sales and marketing at Westchester Modular Homes, says the up-charge is minimal. He claims that a modular home may cost 3 to 5 percent more for a house that is 50 to 60 percent more efficient than the typical home.