PtgEnergiespeichereffizienz
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In future energy systems with high shares of fluctuating renewable energy generation, electricity storage will become increasingly important for the utilization of surplus energy. The Power-to
What are reversible PTG systems?
By taking advantage of fluctuations in hourly electricity prices, reversible PtG systems not only act as buffers in electricity markets, they also broaden the supply sources for hydrogen as an industrial input and general energy carrier.
Will a renewable power source reduce reversible PTG break-even values?
It remains to be seen to what extent the addition of a renewable power source would improve the capacity utilization of a reversible PtG system and, therefore, lower the corresponding break-even values.
What is cm (P) in a reversible PTG system?
We begin with the derivation of the optimized aggregate contribution margin, CM (p), that is attainable annually if the investor acquires a 1 kW system of the integrated reversible PtG system and the prevailing market price of hydrogen is p.
What is the economic optimum of PTG capacity?
In case of assumed investment costs of 750 €/kW, the economic optimum of the PtG capacity is in a range of 6 to 12 GW (green lines), depending on the additional penetration of the PtH technology. Fig. 6. Benefit-cost-lines for determining an economic optimum of PtG capacity in the 85% renewable energy scenario.
Can reversible PTG systems be heated to operating temperature?
Reversible PtG systems based on PEM technology can be heated to operating temperature in less than 10 min 30. We examine the losses incurred by bringing either reversible PtG system from a cold start to full operating temperature in an extension to the basic model provided in Supplementary Note 1.