BESS
Battery Energy Storage Systems
- Shorter-duration flexibility
- Fast response
- Grid services
Deployed where speed and shorter-duration balancing define value.
Technology
Proven technology,disciplined deployment.AddiGen is not a technology developer. We select and deploy proven storage technologies where the energy system needs them.
Our position
The technology is proven. The discipline is in where, and how, it is deployed.
AddiGen does not develop technology. We apply two complementary, proven storage technologies — CAES and BESS — based on duration, grid need and market requirements.
Two technologies
A complementary pair, not a preference.
CAES
Compressed Air Energy Storage
- Long-duration storage
- Multi-hour to multi-day capability
- System resilience
Deployed where scale and duration define value.
Together they cover the flexibility spectrum: batteries respond in seconds for grid services; CAES shifts large volumes of energy across hours and days.
How CAES works
Compress. Store. Expand. Return.
Electricity from renewables compresses air into storage — typically underground. When the grid needs power, the air is released through an expansion stage and electricity returns to the grid.
01Renewable electricity
02Compression
03Compressed air storage
04Expansion / generation
05Power grid
Two CAES configurations
What happens to the heat defines the variant.
Diabatic CAES
diabaticCompression heat is released. Before expansion, the stored air is reheated — typically with supplementary fuel — to maximise power output.
Adiabatic CAES
adiabaticCompression heat is captured in a thermal store and returned to the air before expansion — recovering energy without supplementary fuel.
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