Sodium batteries edging out lithium, good study inside!

https://www.mining.com/sodium-ion-batteries-prove-to-be-resource-efficient/ Researchers at Sweden’s Chalmers University of Technology have demonstrated that sodium-ion batteries have an equivalent climate impact as their lithium-ion counterparts – but there isn’t a risk of running out of raw materials. “Lithium-ion batteries are becoming a dominant technology in the world and they are better for the climate than fossil-based technology, especially when it comes to transport. But lithium poses a bottleneck. You can’t produce lithium-based batteries at the same rate as you want to produce electric cars, and the deposits risk being depleted in the long term,” Rickard Arvidsson, lead author of the study published in the Journal of Industrial Ecology, said in a media statement. SIGN UP FOR THE BATTERY METALS DIGEST Arvidsson pointed out that in addition to their limited natural availability, critical battery materials, such as lithium and cobalt, are largely mined in just a few places in the world, posing a risk to the supply. In his view, this is why sodium-ion batteries offer promising technology and why his team decided to look deeper into them. In detail, they carried out a life cycle assessment of the batteries, where they examined their total environmental and resource impact during raw material extraction and manufacturing. “We came to the conclusion that sodium-ion batteries are much better than lithium-ion batteries in terms of impact on mineral resource scarcity, and equivalent in terms of climate impact,” Arvidsson said. “Depending on which scenario you look at, they end up at between 60 and just over 100 kilogrammes of carbon dioxide equivalents per kilowatt hour theoretical electricity storage capacity, which is lower than previously reported for this type of sodium-ion battery. It’s clearly a promising technology.” The researchers also identified several measures with the potential to reduce climate impact further, such as developing an environmentally better electrolyte, as it accounted for a large part of the battery’s total impact. Energy storage Today’s sodium-ion batteries are already expected to be used for stationary energy storage in the electricity grid, and with continued development, they will probably also be used in electric vehicles in the future. 
”Energy storage is a prerequisite for the expansion of wind and solar power. Given that the storage is done predominantly with batteries, the question is what those batteries will be made from? Increased demand for lithium and cobalt could be an obstacle to this development,” Arvidsson noted. The major advantage of the technology is that the materials in the sodium-ion batteries are abundant and can be found all over the world. One electrode in the batteries – the cathode – has sodium ions as a charge carrier, and the other electrode – the anode – consists of hard carbon, which in one of the examples the Chalmers researchers have investigated can be produced from biomass from the forest industry. “Batteries based on abundant raw materials could reduce geopolitical risks and dependencies on specific regions, both for battery manufacturers and countries,” Arvidsson said. Life cycle assessment The study is a prospective life cycle assessment of two different sodium-ion battery cells where the environmental and resource impact is calculated from raw material extraction to the manufacture of a battery cell. The functional unit of the study is 1 kWh theoretical electricity storage capacity at the cell level. Both types of battery cells are mainly based on abundant raw materials. The anode is made up of hard carbon from either bio-based lignin or fossil raw materials, and the cathode is made up of so-called “Prussian white” (consisting of sodium, iron, carbon and nitrogen). The electrolyte contains a sodium salt. The production is modelled to correspond to a future, large-scale production. For example, the actual production of the battery cell is based on today’s large-scale production of lithium-ion batteries in gigafactories. Two different electricity mixes were tested, as well as two different types of so-called allocation methods – that is, allocation of resources and emissions. One where the climate and resource impact is distributed between coproducts based on mass, and one method where all impact is allocated to the main product (the sodium-ion battery and its components and materials).

When weather turns real cold, wind turbines get shut down.

https://pipelineonline.ca/alta-wind-shutdown-due-to-cold/ UPDATE: By 7:28 a.m., wind output fell to less than 1 per cent of capacity One of the first lessons any new engineering student learns in their materials class is “cold brittle behaviour” of materials. When it gets really cold, like -30 C or colder, many materials lose much of their strength and are prone to shattering. This applies to wind turbines as much as it applies to car bumpers. And as a result, most wind turbines are shut down when the ambient temperatures reaches around -30 C, lest their continued operation cause them to shatter. And such shutdowns were plainly evident the evening of Jan. 11, on both the Alberta Electric System Operator website and on Dispatcho.app. That’s a website that logs the minute-by-minute data published by the AESO regarding the Alberta electrical grid. The screenshot above was captured at approximately 11 p.m., Thursday, Jan. 11. Temperatures were in the -28 to -30 C range for most of the areas of southern Alberta where the province’s 45 wind farms are located, according to Windy.com. That website is also very useful in showing windspeed and direction. And Windy.com showed that it wasn’t for lack of wind those farms were shutting down. Nearly every location still had 7 to 9 knots of wind. That’s not a lot, but it’s not nothing, either. This screenshot from Windy.com at 11 p.m., Jan. 11, showed wind vectors and temperatures in southern Alberta, where nearly all of the province’s grid-scale wind generation is located. Windy.com That was clearly indicated by Blackspring Ridge, which all by itself was providing roughly half of the roughly 400 megawatts of wind power in Alberta at the time. Located near Lethbridge, it was producing roughly two-thirds of its nameplate capacity, despite wind speeds of 7 knots and gusts up to 16 knots at Lethbridge, while the temperature was -28 C. Stirling Wind, on the other side of Lethbridge, was producing 47 megawatts just a few hours earlier, before dropping to 2 megawatts at 9 p.m. In the hour that followed, Blackspring Ridge, too, appeared to be spinning down in a linear fashion, producing 79 megawatts at 12:15 a.m. And at 7:28 a.m., it was at one megawatt. As all of this was taking place, the pool price for Alberta flowed around the $450 to $667 range. There was a sharp uptick in prices at 5 p.m., as demand was peaking and wind assets were increasingly going offline. Wind output continued to fall throughout the night. As the workforce was warming up its morning breakfast and coffee, wind power generation had fallen to 37 megawatts out of an installed capacity of 4,481 megawatts. That’s 0.8 per cent, or eight one-thousandths of nameplate capacity, on one of the coldest days of the year, produced by hundreds of wind turbines across 45 wind farms costing billions of dollars. By this point, temperatures across southern Alberta had fallen to -31 C in most locations, but wind was still 7-9 knots in most wind-producing locations, according to Windy.com. And since the sun had yet to rise, solar output was zero, out of 1,650 megawatts. And power pool prices were expected to spike throughout the day, according to X bot account @ReliableAB. It also turns out Alberta set a record for peak demand on Jan. 11, according to the AESO: White knight There may soon be a white knight to the rescue, however, in terms of a massive new power combined cycle natural gas-fired station with two 450 megawatt generating units coming online for a total of 900 megawatts that will be both baseload and dispatchable. The Globe and Mail wrote about it here. As described by Dispatcho.app, “Cascade 1 (CAS1) is a 450 MW natural gas combined cycle generator located in Yellowhead County, approximately 12 KM southwest of Edson, AB. This asset is located at the same facility as Cascade 2, which together cost ~$1.5B to build, and was connected to the grid in 2023. The facility is comprised of two Siemens SCC6-8000H gas turbines for a combined generation capacity of 900 MW. These turbines are designed for short start-up and ramp times which will help ensure a stable power grid in Alberta. This asset is owned by Kineticor.” Cascade Unit 1 is still in startup phase, as Kineticor announced on LinkedIn on Jan. 10, “We are thrilled to announce that the Cascade Power Project has successfully delivered its first megawatt onto the Alberta Power Grid!” However, the evening of Jan. 11, the AESO was showing Cascade Units 1 and 2 were not providing power at that time. Meanwhile in Saskatchewan In Saskatchewan, it was getting pretty cold as well, and it showed up in SaskPower’s grid demand webpage. At 7 p.m., that monitor showed SaskPower’s hourly average usage was 3,760 megawatts, just 150 megawatts shy of the all-time record established two years earlier, on Dec. 30, 2021. That, too, was a very cold night.