![]() ![]() Ole Jacob Irgens is President Americas in Corvus Energy and leads the sales and business development. I hope for a bright forthcoming industry here in Washington and that it will generate lots of new green energy jobs as we go along. Bringing Corvus Energy to Washington state is a step in the right direction. No fuel – no noise – no vibration – the crew members were thrilled, and they all want to work onboard electric ferries. I have seen the future when I visited an electric ferry in Norway last year. ![]() Climate change is a huge threat, and it has since long been my dream to build a clean energy economy. The Governor of Washington State, Jay Inslee was full of praise in his speech for what Corvus has achieved with its new facility in Bellingham: “I am so thrilled to be with you today to celebrate the opening of your new facility. US presence and close collaboration with shipyards, shipowners, Washington Maritime Blue as well as other suppliers and service providers foster innovation across the entire industry and build valuable competence and local green jobs”. “Washington state was a natural choice for Corvus due to its presence of a strong maritime cluster, the state’s focus on green shipping, and the proximity to our Richmond facility in Canada. Increased capacity and production flexibility will be key to meeting this anticipated growth. Geir Bjørkeli, CEO of Corvus Energy explains, “We have seen a significant uptake in opportunities for maritime batteries from the US market. The new battery plant is located in Fairhaven at the Port of Bellingham and is a key step in the expansion of Corvus’ US operations. Photo caption: Governor of Washington, Jay Inslee cut the ribbon to officially open the new Corvus battery factory in Bellingham, WA US accompanied by (Left to right) Ole Jacob Irgens, President Corvus Energy Americas, Anniken Krutnes, Norway`s Ambassador to the USA, Jay Inslee, Governor of Washington, Rick Larsen US representative and Geir Bjørkeli, CEO Corvus The ceremony was held with distinguished guests such as the Governor of Washington, Jay Inslee, Norway’s Ambassador to the USA, Anniken Krutnes and US representative Rick Larsen along with customers, industry partners, government agencies and others. Even with 30% round-trip efficiency, RHFC storage achieves the same grid as batteries when storing overgeneration from wind turbines, because its high ESOI e ratio and the high EROI of wind generation offset the low round-trip efficiency.Bergen, Norway and Bellingham WA, US – Janu– Corvus Energy celebrated the grand opening of its new battery factory in Bellingham WA this week. We quantify the relative energetic benefit of adding different types of energy storage to a renewable generating facility using grid. One application of energy storage that illustrates the tradeoff between these different aspects of energy performance is capturing overgeneration (spilled power) for later use during times of peak output from renewables. On the other hand, their round-trip efficiency must improve dramatically before they can offer the same overall energy efficiency as batteries, which have round-trip efficiencies of 75–90%. RHFC's represent an attractive investment of manufacturing energy to provide storage. However, the low round-trip efficiency of a RHFC energy storage system results in very high energy costs during operation, and a much lower overall energy efficiency than lithium ion batteries (0.30 for RHFC, vs. (In the reference scenario RHFC, the alkaline electrolyzer is 70% efficient and has a stack lifetime of 100 000 h the PEM fuel cell is 47% efficient and has a stack lifetime of 10 000 h and the round-trip efficiency is 30%.) The ESOI e ratio of storage in hydrogen exceeds that of batteries because of the low energy cost of the materials required to store compressed hydrogen, and the high energy cost of the materials required to store electric charge in a battery. In our reference scenario, the RHFC system has an ESOI e ratio of 59, more favorable than the best battery technology available today (Li-ion, ESOI e = 35). To compare RHFC's to other storage technologies, we use two energy return ratios: the electrical energy stored on invested (ESOI e) ratio (the ratio of electrical energy returned by the device over its lifetime to the electrical-equivalent energy required to build the device) and the overall energy efficiency (the ratio of electrical energy returned by the device over its lifetime to total lifetime electrical-equivalent energy input into the system). ![]() We examine the most widely installed RHFC configuration, containing an alkaline water electrolyzer and a PEM fuel cell. In this work, we evaluate energy storage with a regenerative hydrogen fuel cell (RHFC) using net energy analysis. Energy storage is a promising approach to address the challenge of intermittent generation from renewables on the electric grid. ![]()
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