System prices circulating in the storage sector are very different from one source to another and sometime confusing. Relying on its field expertise, Clean Horizon has decided to publish every semester a storage price range based on data points it gets from storage manufacturers and buyers.
Data does not include installation and other ancillary costs. Only batteries are concerned. In this first issue, lead acid prices are left out.
Also, data does not include operational costs , efficiency, maximum depth of discharge, number of cycles and other data linked to the usage scenario. The data shown here only addresses the CAPEX of the system.
Buyers of storage should be aware that these prices should be taken with caution as only “lifetime” assessments of the system’s costs and revenues are valid ways to assess the profitability of storage.
March 2015 storage prices
Clean Horizon makes the difference between two kinds of storage:
- Power storage, with a C-rate above 2 (i.e. less than 30 minutes of energy)
- Energy storage, with a C-rate equal or under 1 (i.e. more than one hour of energy)
All data include the battery and the Power Conversion System prices (or “AC price”).
As indicated in the figure below, in March 2015, Clean Horizon found the mean price at the MW level that a buyer could get upon purchase was $1000/kW for power storage and $815/kWh for energy storage. Standard deviations were $240/kW and $185/kWh respectively.