Applications: Stationary Energy Storage
Page 215 of 768Directory profiles · Battery Business Directory
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Sources and links on page 215 (7)
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- https://www.catl.com/en/news/6232.html
- https://info.fluenceenergy.com/hubfs/Smart_Service_Plans_BR-057-02-EN.pdf
- https://en.byd.com/energy/
- https://csestorage.com/solbank-3-0-plus/
- https://www.pv-magazine.com/press-releases/battery-manufacturer-hithium-to-be-reinsured-by-munich-re/
- https://www.ess-news.com/2025/09/09/tesla-unveils-new-generation-of-utility-scale-batteries-megapack-3-and-megablock/
- https://www.trinasolar.com/us/Storage/Resources
Text on page 215
Long-Term Service Agreements (LTSA) for BESS The LTSA is an agreement between the Project and battery supplier for long-term performance guarantee (PG), preventative and corrective maintenance. LTSA terms have begun to be aligned across major suppliers:
20-year term common, 25-year is now frequently offered
Performance guarantees tend to include:
25-year degradation guarantee to 60-70% SOH based on 1 cycle per day
Up to 2 cycles per day (provided annual maximum not exceeded)
20- to 25-year Round-trip efficiency guarantees from 88% at Beginning of Life (at POI) to 82% at End of Life
96-98% Availability Guarantee (after discounting preventative maintenance)
Leading LTSAs tend to not place any requirements on State-of-Charge (SOC), while lower-tier suppliers may place limits on average SOC
Most suppliers have moved away from warranty adjusters based on temperature; as long as the system is within the allowable ambient temperature range, it can be operated
Most key terms in LTSA have corresponding liquidated damages clauses
BRAND
NOTABLE PUBLICLY AVAILABLE PERFORMANCE GUARANTEE TERMS
Zero degradation in the first five years of use for the Tener product, driven by pre-lithiation Providing numerous additional warranties: 99% Availability Guarantee, Dispatchable Energy Guarantee, up to 25-years Energy Capacity Guarantee, up to 25-years Round-Trip Efficiency (RTE) Guarantee, State of Charge accuracy guarantee 20 to 25 years of warranty on eligible storage projects After 10,000 cycles, the battery retains 70% of its original capacity, which enables us to provide a 12-year warranty 25 – year design life span and up to four years zero degradation, 12,000 cycles. The warranties against performance degradation and the risk of defects, with coverage of up to 15 years Megapack comes with a 20-year warranty and performance guarantees, ensuring operational capacity throughout the lifetime of the system New Megablock has a 25-year operational life and support for over 10,000 cycles
Product warranty, performance warranty (capacity and availability coverage with flexible usage parameters) 15,000+ Cycles lifespan with zero degradation in the first year
Extracted from the PDF; charts and images may read imperfectly.
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