High-density · 6.5 MWh
What is the ADESS 6500 (6.5 MWh) high-density BESS?
The ADESS 6500 is our highest-density system: 6.5 MWh of liquid-cooled LFP storage in a single 20ft container, built on large-format 628 Ah cells. It packs more energy into the same footprint for utility-scale and grid-tied projects, and arrays into grid blocks from 20 MWh to gigawatt-hour class.
Representative render — final unit livery per project.
Specifications
| Usable energy | 6.5 MWh |
|---|---|
| Enclosure | 20ft ISO container |
| Cooling | Liquid |
| Cell | LFP 628 Ah large-format |
| Scaling | Arrays to 20 MWh → GWh |
| Monitoring | Remote, 24×7 |
Typical configuration — every system is tuned per project. LFP chemistry with integrated BMS, fire suppression and remote monitoring.
Applications
- Utility tenders & PPAs
- Grid-scale arrays
- Ancillary services
- Renewable firming
- Grid stabilization
Best for: Utility-scale and grid-tied projects where energy density per footprint matters most.
Every system ships with its assurance.
Product warranty
Standard multi-year product warranty on every system — typically 5 years on cabinets and containers, extendable per project.
Performance guarantee
Capacity-retention guarantees available to 10 years, with degradation modelled up front and augmentation space reserved in the design.
24×7 remote monitoring
Every system ships with remote monitoring; our operations desk watches state of health, alarms and dispatch performance continuously.
Service & O&M
Long-term O&M contracts with defined response times, spares strategy and annual capacity testing — the asset stays bankable for its life.
Final terms confirmed per project and chemistry, in writing.
Other ADESS models
ADESS 250
Compact, outdoor-rated 250 kWh. Storage that fits beside the factory, not a substation.
C&I · 1 MWhADESS 1000
The 1 MWh workhorse for C&I — peak shaving and arbitrage at scale, in one block.
Containerised · 5 MWhADESS 5000
A fully integrated 5 MWh 20ft container that ships, sites and commissions as one unit.
Let's talk storage
Sizing a ADESS 6500 for your site?
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