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.

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

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.

Most people use more energy this time of year, compared to the rest of the year. There are some ways you can save cash by saving energy.

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

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.

This initiative, according to Benon Mutambi the Electricity Regulatory Authority (ERA) Chief Executive Officer will cost the government about $4.1m. The initial batch will be distributed to consumers starting January 2015.

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.

Solid-state lighting technologies, which include both LED and organic light emitting diode technologies, have the potential to save Americans $26 billion a year in energy costs by 2030.

The new energy efficiency standard’s positive environmental impact includes 3.63 quadrillion BTU’s of energy saved during the above mentioned period, that translates in avoiding 265 million metric tons of CO2 emissions equivalent to the annual emissions of about 52 million automobiles.