Investment cost analysis of gravity energy storage in asuncion

How much does gravity energy storage cost?

Depending on the considered scenarios and assumptions, the levelized cost of storage of GES varies between 7.5 €ct/kWh and 15 €ct/kWh, while it is between 3.8 €ct/kWh and 7.3 €ct/kWh for gravity energy storage with wire hoisting system (GESH). The LCOS of GES and GESH were then compared to other energy storage systems.

How to calculate the levelized cost of gravity energy storage?

To calculate the levelized cost of a gravity energy storage system, first find the system investment cost by adding all relevant construction and equipment costs for the installation of the system. In this calculation, a storage capacity of 20 MWh is used.

Do different sized gravity energy storage systems improve economic performance?

To investigate the economic performance of differently sized gravity energy storage systems, a wind farm with a number of gravity energy storage units has been used. The principle of economies of scale has been applied resulting in a cost reduction for large scale systems.

How to calculate financial feasibility of gravity energy storage project?

Life cycle cost analysis To calculate the financial feasibility of gravity energy storage project, an engineering economic analysis, known as life cycle cost analysis (LCCA) is used. It considers all revenues, costs, and savings incurred during the service life of the systems. The LCC indicators include NPV, payback period, and IRR.

Does gravity energy storage have a return on investment (ROI)?

Return on Investment (ROI) The deployment of gravity energy storage systems will result in annual revenues. To investigate whether the savings received throughout the lifetime of the system will be enough to recover the upfront cost, it is important to determine the return on investment (ROI).

What is LCOE in gravity storage?

The Levelized Cost of Energy (LCOE) for gravity storage is calculated as the annual capital cost of the system, divided by the expected energy discharge of the system. The capital cost for gravity storage has been estimated in section 3. However, the expected energy discharge depends on the number and length of charge and discharge cycles per day.