Fuel Cells

The US Department of Energy's paper, "Grid Operational Impacts of Widespread Storage Deployment" analyzes requirements to 2050. It variously calculates 1.3 TWh required to just over 6.0 TWh in its 94% renewable electricity, Zero Carbon scenario. Earlier, other researchers calculated 80% wind and solar will require 5.4 TWh of energy storage so it is obvious that huge amounts of storage are needed. Even that is with massive over-production and therefore curtailment - electricity only being generated 10% to 20% of the time on average. Polluting peaker plants only have 11% capacity factor so, on that model, bad replaces bad in that respect.

On the face of it, 2021 was a good year for fuel cell electric vehicles (FCEV) in passenger car markets. Toyota, with their second generation Mirai FCEV, and Hyundai, with their NEXO FCEV, both had record sales, which largely made up for Honda announcing in June 2021 that it had decided to pull the plug on production of their Honda Clarity FCV (citing the lack of hydrogen infrastructure and weak demand).

Fires in electric vehicles (EVs) certainly gain a lot of media attention in comparison to their internal combustion engine (ICE) counterparts. But a crucial question for the future of mobility is whether EVs are actually any more likely to catch fire than an ICE vehicle. There is always a non-zero risk of Lithium-ion batteries entering thermal runaway but the key points are how likely is a fire, how problematic is an EV fire and what is being done to prevent or limit them in the future?

IDTechEx Technology Analyst Dr David Wyatt has recently published a report update "Electric Truck 2020-2030", focusing on electrification in the medium and heavy-duty truck markets, providing a comprehensive set of market forecasts.

Few of the giant car makers have shown urgency in transitioning away from the internal combustion engine. What's more, the automotive market is set to decline once again in 2019 whilst electrifying newcomers made huge gains in front of sleeping incumbents' noses. Although a large fraction of this is orders (not deliveries), if OEMs do not wake up now, they never will.

Toyota and Daimler presented at a recent IDTechEx conference on their fuel cell vehicle programs. A questioner asked them to reveal the unique selling proposition of fuel cell vehicles. They said there is no USP.

An electric vehicle with three energy storage systems shows the complexity of commanding different control systems in only one vehicle. Both new systems can supply the required energy to propel the electric motor and the fuel cell system can also recharge the high-voltage battery.

There is divided opinion on future of traction fuel cells in electric vehicles, though few argue any more that they will power the majority of electric vehicles.

Launches of fuel cell cars are reportedly planned by up to six carmakers from 2015 including Tata Motors of India, owners of Jaguar Land Rover.

It is not much of an achievement to make a fuel cell powered vehicle any more. They have been made for over 25 years and they work well.