Page 31 - PCMI Journal July 2018
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Figure 2
Mats W. Lundberg | Sustainability Specialist | Sandvik Materials Technology | SE
Hydrogen Society of Tomorrow – Established in Sandviken Today
The material produced by Sandvik for bipolar plates are used in a diverse range of applications from mobile devices, automotive to stationary fuel cells.
The hydrogen society
The last decade renewable energy such as solar PV and wind energy have been installed at an ever-increasing rate. Green energy is of course welcome but renewable energy sources have intermittent production. This weather dependent energy production results in nonlinear output of energy in comparison to what coal and nuclear power provide. Large number of renewables could result in overproduction, which could go unused or negatively affect energy selling price. Also, an increasing quantity of renewables could be detrimental to energy grids that are not robust enough, see Figure 3. Grid stability could be provided by energy storage such as hydrogen and batteries, see Figure 4. For seasonal storage hydrogen or derived chemicals e.g. methane is the best option. The hydrogen is produced by electrolysis of water with oxygen as a byproduct.
Green hydrogen produced by electrolysis connects the energy grid and gas grid at the same time as it enables a transition to green mobility, fuels and industrial applications, see Figure 5.
Issue 131 July 2018 PCMI Journal 30
