15 January 2018, Climate News Network, District heating warms cities without fossil fuels. Heating homes and offices without adding to the dangers of climate change is a major challenge for many cities, but re-imagined district heating is now offering an answer. A district heating scheme is a network of insulated pipes used to deliver heat, in the form of hot water or steam, from where it is generated to wherever it is to be used. As a way of providing warmth for thousands of homes, typically in multi-storey apartment buildings, district heating has a long history in eastern Europe and Russia. But the hot water it distributes typically comes from power stations burning coal or gas, which means more greenhouse gas emissions. Tapping into other forms of producing hot water, from renewable energy, bio-gas or capturing waste heat from industrial production, supermarkets or IT systems, provides alternative sources of large scale heating without adding to the carbon dioxide in the atmosphere. Sweden has pioneered the switch from fossil fuels to other ways of heating water. The Swedish Environmental Protection Agency says the country has gone from almost exclusively relying on fossil fuels to being 90% powered by renewable and recycled heat in 2017. Read More here
Category Archives: Fossil Fuel Reduction
11 January 2018, The Conversation, A month in, Tesla’s SA battery is surpassing expectations. It’s just over one month since the Hornsdale power reserve was officially opened in South Australia. The excitement surrounding the project has generated acres of media interest, both locally and abroad. The aspect that has generated the most interest is the battery’s rapid response time in smoothing out several major energy outages that have occurred since it was installed. Following the early success of the SA model, Victoria has also secured an agreement to get its own Tesla battery built near the town of Stawell. Victoria’s government will be tracking the Hornsdale battery’s early performance with interest. Generation and Consumption Over the full month of December, the Hornsdale power reserve generated 2.42 gigawatt-hours of energy, and consumed 3.06GWh. Since there are losses associated with energy storage, it is a net consumer of energy. This is often described in terms of “round trip efficiency”, a measure of the energy out to the energy in. In this case, the round trip efficiency appears to be roughly 80%. The figure below shows the input and output from the battery over the month. As can be seen, on several occasions the battery has generated as much as 100MW of power, and consumed 70MW of power. The regular operation of battery moves between generating 30MW and consuming 30MW of power. Read More here
11 January 2018 Boomberg, Hype Meets Reality as Electric Car Dreams Run Into Metal Crunch. When BMW AG revealed it was designing electric versions of its X3 SUV and Mini, the going rate for 21 kilograms of cobalt—the amount of the metal needed to power typical car batteries—was under $600. Only 16 months later, the price tag is approaching $1,700 and climbing by the day. For carmakers vying to fill their fleets with electric vehicles, the spike has been a rude awakening as to how much their success is riding on the scarce silvery-blue mineral found predominantly in one of the world’s most corrupt and underdeveloped countries. “It’s gotten more hectic over the past year,” said Markus Duesmann, BMW’s head of procurement, who’s responsible for securing raw materials used in lithium-ion batteries, such as cobalt, manganese and nickel. “We need to keep a close eye, especially on lithium and cobalt, because of the danger of supply scarcity.” Like its competitors, BMW is angling for the lead in the biggest revolution in automobile transport since the invention of the internal combustion engine, with plans for 12 battery-powered models by 2025. What executives such as Duesmann hadn’t envisioned even two years ago, though, was that they’d suddenly need to become experts in metals prospecting. Automakers are finding themselves in unfamiliar—and uncomfortable—terrain, where miners such as Glencore Plc and China Molybdenum Co. for the first time have all the bargaining power to dictate supplies. Read More here
19 December 2017, CSIRO-ECOS, Refining the accounts on canola emissions savings. BIOFUELS are about to work even harder to prove their renewable worth, under new European Union rules. From 2018 the European Commission’s Renewable Energy Directive mandates that biofuels must demonstrate a 50 per cent emissions saving compared to their fossil fuel companions (or a 60 per cent saving when produced in refineries constructed after October 2015), compared to a flat 35 per cent saving now. CSIRO was commissioned by the Australian Oilseed Federation and the Australian Export Grains Innovation Centre to assess the greenhouse gas emissions of growing canola in Australia, in order to continue exports to the European Union for use as a feedstock for biodiesel under the new rules. In 2016/17, more than 3.1 million tonnes of Australian canola was exported to the EU, worth around $1.8 billion. EU buyers can pay a $20-40 per tonne premium for non-genetically modified canola (which Australia primarily produces), making the EU export market one with a cool $100 million premium riding on it. The vast majority of this canola (91 per cent in 2015-16) is used to make biodiesel. To secure this important export market the Australian industry needed to demonstrate that canola can be grown at a low enough carbon footprint so that once all the other processes of shipping and refining are added, the final product can be deliver to the customer at the fuel bowser within the target saving of 50-60 per cent. We are happy to say it did. Read More here