This is Rimac’s first move into the stationary energy storage market, their first product is the SineStack.
The interesting aspects of this design is the integrated inverter, active balancing and the ability to switch the load on a module basis to extend the working lifetime.
Specifications
- Usable energy = 790kWh (832 kWh total)
- Usable window = 95%
- Output = 3 phase 400V AC
- Rated power = 400kVA for 2 hours (0.5C rate)
- Power factor = -1.0 to +1.0
- Maximum THD = 3% at rated power
- AC round trip efficiency >92%
- Dimensions = 2590 x 1950 x 1300mm
- Volume = 6566 litres (6.566m3)
- Cooling = water / glycol
- Cycles < 12,000 at 95% DoD
- BMS
- Active SoC balancing increases energy >7%
- Energy Capacity Tracker
- Energy Capacity Predictor
- Cells
- Chemistry = LFP
- Metrics
- Volumetric energy density = 127 Wh/litre
This post has been built based on the support and sponsorship from: Eatron Technologies, About:Energy, AVANT Future Mobility, Quarto Technical Services, TAE Power Solutions and The Limiting Factor.
As a comparison the Tesla 2020 Powerwall 2 has a volumetric energy density of 111 Wh/litre, however, this is a much smaller unit with just 13.5kWh usable.
Let us know your experience with the Rimac SineStack so we can develop a deeper understanding.
References
- Rimac unveils ‘most technically advanced BESS in the world’, SineStack, Energy Storage News
- Introducing Rimac Energy, Rimac
No doubt that Rimac succes can easy reach BESS! After acheiving 1.3MegaWatts of power in a single car with the Nevera, The stationary energy challenge will certainly be a succes!
Agree on performance, will be good to see how this works with respect to reliability.