Energiespeichersystem LCOS
Nur Eingeweihte wissen, dass sich unter dem unscheinbaren Schachtdeckel auf dem Ecolab-Firmenparkplatz ein innovatives Energiespeichersystem befindet: der Eisspeicher. Er hat eine Kapazität von 1,8 Millionen Litern und sorgt in der Deutschlandzentrale des Unternehmens in Monheim für 900 Mitarbeiter das ganze Jahr über für angenehme Raumtemperaturen.
What is the levelized cost of Energy Storage (LCOS)?
PSH and CAES are low-cost technologies for short-term energy storage. PtG technologies will be more cost efficient for long-term energy storage. LCOS for battery technologies can reach about 20 €ct/kWh in the future. This paper presents a detailed analysis of the levelized cost of storage (LCOS) for different electricity storage technologies.
What is the LCoS method for electricity-to-electricity storage?
The LCOS method allows a quick comparison of the cost of electricity-to-electricity storage technologies. However, the cost per kWh is not always the optimal unit for expressing the value of the storage application’s service.
Which storage technology has the highest LCoS?
For all technologies the arithmetic average of costs is used. A comparison of the storage technologies shows the inhomogeneous distribution of cost structure: The LCOS of PSH and CAES is dominated by the CAPEX, in which the storage unit has the highest cost share. This explains the high LCOS of these technologies if used as long-term storage.
Which energy storage technology has the lowest LCoS?
The results for the long-term storage show that Pumped-Storage Hydroelectricity has the lowest LCOS among the mature technologies today. Power to Gas technologies, once established on the market, may also provide long-term electricity storage at even lower LCOS.
How does the cost of electricity affect LCoS?
LCOS of the short-term storage system at 365 cycles per year and a varying electricity cost. The lowest impact of the cost of electricity can be observed regarding the dCAES system: If the cost of electricity is 5 €ct/kWh the LCOS increases by only about 3 ct/kWh.
What is the LCoS of a PSH system?
The LCOS of today’s PSH is shown in the graph for comparison. The assumed future cost for PtG systems is 26–43 €ct/kWh for the H 2 storage and about 36–55 €ct/kWh for the CH 4 storage system. aCAES systems have high LCOS of about 2–4 €/kWh if operated with one cycle per year, not depicted in the graph.