Winds rarely break into the news except when they disrupt daily life. But many sports—including all boating, most hunting, archery, surfing, casting—keep us mindful of wind. Here in San Francisco, two of the most thrilling sports depend on ocean wind. From the cliffs of Fort Funston, hang gliders use the coming wind to rise as they launch over the Pacific. Homeward bound after fishing the Pacific, our party boat is usually intercepted near the Golden Gate Bridge by a kiteboard, whose rider has one arm steering his kite, flying high above and buffeted there by that potent incoming wind, while the other arm works a line steering his board. He rides our turbulent wake, zigzagging madly because his wind-driven speed is faster than our boat’s.
For thousands of years, those ocean winds drove human history. Think about sails. Beginning sometime between 3000 and 1500 BCE, the sailing ships of the Austronesian people used the wind to explore and settle most of the islands of the south Pacific. By 1200 BCE, the sailing ships of Phoenicia and other maritime civilizations used the wind to turn the Mediterranean into a marketplace. Wind powered the ships that “discovered” and looted the “New World ” from the 15th century through most of the 19th century. All the people stolen from Africa were driven by wind into slavery. Massed formations of wind-powered European warships fought to divide the world. Sails kept the sun from ever setting on the
— source emagazine.com | H. Bruce Franklin | Dec 4, 2021
Offshore wind turbine manufacturer Adwen and turbine rotor blades supplier LM Wind Power have unveiled the world’s longest wind turbine blade. The 88.4 meter wind turbine blade has been designed for Adwen’s AD 8-180 wind turbine, an 8 MW wind turbine with a 180 meter rotor diameter. The image shown above is of the very first of the wind turbine blades for this new design, manufactured at LM Wind Power’s factory in Lunderskov, Denmark. The new 8 MW wind turbine is a big step towards lowering the LCoE of offshore wind energy, with the LM 88.4 P blade being designed with manufacturability and reliability at the forefront of developers’ minds.
— source cleantechnica.com | 2016
In 2015, renewable energy investments hit $286 billion, a five percent increase from 2014. Global investments in renewable energy were double that spent on new coal and natural gas-fired power generation. Thanks to greater spending, a total of 147 gigawatts (GW) of renewable energy capacity was added in 2015. China was the biggest spender, accounting for a third of all renewable energy spending, but India, South Africa, Mexico and Chile all had major increases in green energy investments.
— source treehugger.com | 2016
When it was fully commissioned in 1984, Dinorwig Power Station was regarded as one of the world’s most imaginative engineering and environmental project. Dinorwig is comprised of 16km of underground tunnels, deep below Elidir mountain. Its construction required 1 million tonnes of concrete, 200,000 tonnes of cement and 4,500 tonnes of steel. Dinorwig’s reversible pump/turbines are capable of reaching maximum generation in less than 16 seconds. Using off-peak electricity the six units are reversed as pumps to transport water from the lower reservoir, back to Marchlyn Mawr.
— source electricmountain.co.uk
Our patented technology is based on a simple principle: raising and lowering a heavy weight to store and release energy. The Gravitricity system suspends weights of 500 – 5000 tonnes in a deep shaft by a number of cables, each of which is engaged with a winch capable of lifting its share of the weight. Electrical power is then absorbed or generated by raising or lowering the weight. The weight is guided by a system of tensioned guide wires (patents applied for) to prevent it from swinging and damaging the shaft. The winch system can be accurately controlled through the electrical drives to keep the weight stable in the hole.
— source gravitricity.com
While giving fossil fuel companies access to relief funds ostensibly meant for small businesses struggling due to the coronavirus pandemic, the Trump administration on Monday slapped solar and wind power firms with retroactive rent bills dating back two years. The Interior Department is demanding rent payments from renewable energy companies operating on federal lands, two years after it suspended rent for the operators as it investigated whether the Obama administration had charged too much. The administration plans to collect $50 million in rent this year from 96 companies operating on federal property—the same amount of money that a recent report showed is going to fossil fuel companies in loans through the Paycheck Protection Program (PPP). the oil and gas companies may not have to pay those loans back.
— source commondreams.org | May 18, 2020
Not since wood was the main source of American energy in the 19th century has a renewable resource been used more heavily than coal, but 2019 saw a historic reversal, according to U.S. government figures. Coal consumption fell by 15 percent, down for the sixth year in a row, while renewables edged up by 1 percent. This meant renewables surpassed coal for the first time since at least 1885. Electricity generation from coal fell to its lowest level in 42 years in 2019.
— source grist.org | Jun 7, 2020