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Ethiopia on Sunday inaugurated a power plant which converts waste into energy, next to a filthy open-air dump in Addis Ababa where a landslide last year killed more than 110 people.

Named Reppie, the facility is the first of its kind in Africa, according to the government and the British company Cambridge Industries behind the project, and will turn 1,400 tons of waste per day into energy.

Ethiopian President Mulatu Teshome said at the ceremony that the country “has been investing extensively in hydro power, geothermal, wind energy and now biomass to boost the manufacturing sector with a supply of clean, renewable energy.”

Our freeways and highways could really use this. What do you think?

This cable is what it takes to drive the 700 Amp power supply for the world’s biggest light bulb at the heart of the system…See the concept drawing from years ago on the left and the CAD model in the right.

To deal with variable solar and wind power, the startup Energy Vault is coming out of stealth mode to offer alternatives to lithium-ion batteries.

Global investment in renewable energy (Solar, Wind, Hydro and biofuel) edged up 2% in 2017 to $279.8 billion, taking cumulative investment since 2010 to $2.2 trillion. The level of global renewable power spending has been virtually flat for seven years. There has been an increase in overall installed renewable power each year because of the dropping prices. A 2% increase in spending has resulted in 10% increase in global installations from 2016 to 2017.

A record 157 gigawatts of renewable power capacity was commissioned in 2017, up from 143GW in 2016. This was more than the 70GW of net fossil fuel generating capacity added last year. However, the installed fossil fuel power generates more kilowatt hours because of the low capacity factors of solar and wind power.

Continue reading “Global Renewable power spending has been virtually flat for seven years and most countries will need expensive grid upgrades to handle more solar and wind” »

NASA engineers have crafted a themed playlist to greet their sleeping Opportunity rover on Mars, which lost power in a Martian dust storm in June.

A new type of energy storage system could revolutionise energy storage and drop the charging time of electric cars from hours to seconds.

In a new paper published today in the journal Nature Chemistry, chemists from the University of Glasgow discuss how they developed a flow battery system using a nano-molecule that can store electric power or hydrogen gas giving a new type of hybrid energy storage system that can be used as a flow battery or for hydrogen storage.

Their ‘hybrid-electric-hydrogen’ flow battery, based upon the design of a nanoscale battery molecule can store energy, releasing the power on demand as electric power or hydrogen gas that can be used a fuel. When a concentrated liquid containing the nano-molecules is made, the amount of energy it can store increases by almost 10 times. The energy can be released as either electricity or hydrogen gas meaning that the system could be used flexibly in situations that might need either a fuel or electric power.

Continue reading “Liquid battery could lead to flexible energy storage” »

In the quest for clean alternative energy sources, hydrogen is a favorite. It releases a lot of energy when burned—with a bonus: The major byproduct of burning hydrogen is pure water.

The big obstacle has been getting pure hydrogen in sufficient quantity to burn. So scientists are studying hydrogen evolution reactions, or HERs, a type of water-splitting technology in which electrodes, covered with catalytic materials, are inserted into water and charged with electricity. The interaction of the electricity, the catalysts and the water produce hydrogen gas—a clean fuel—and clean, breathable oxygen.

Alas, there is a problem: At present, electrodes must be coated with precious, expensive metals, most notably platinum.

Continue reading “New water-splitting technology brings clean hydrogen fuel one step closer” »

A research analyst at Swiss investment bank UBS believes the cost of energy renewables could be so near to zero by 2030 “it will effectively be free,” according to a projections published on Monday. If renewables could soon be cheaper than all the alternative energy sources, and that this “is great news for the planet, and probably also for the economy.”

The analysis, published in the Financial Times, explains that solar and wind farms are getting bigger, and that the potential of this sort of cheap, green energy is far-reaching and will only get cheaper. “In 2010, using solar power to boil your kettle would have cost you about £0.03,” the analyst writes in FT. “By 2020, according to estimates by our research team at UBS, the cost will have fallen to half a penny.” And just ten years later, the costs will be so minuscule, it will practically be free.

See also: 7 Massive Corporations Going Green to Boost Their Bottom Lines.

Continue reading “Renewable Energy Could Basically Be Free by 2030, According to New Analysis” »