Case Study 03
Sweden Grid Stability
A 1MW / 1.104MWh fast-response battery providing frequency regulation and power-quality support on a Swedish distribution network with rising renewable penetration.
- Client type
- Network operator
- Sector
- Electricity distribution
- Location
- Sweden
- Commissioned
- April 2024
Deployment background
Growing wind and solar penetration on the local network had increased the frequency and severity of deviation events, pushing existing balancing resources beyond comfortable operating margins.
Conventional stabilisation options were capital-heavy and slow to respond, and could not be sited flexibly across the distribution area where the disturbances originated.
The operator needed a compact resource that could react within milliseconds, be located close to the constraint, and earn revenue from grid services between events.
Location: Sweden | Commissioned: April 2024 | Capacity: 1MW / 1.104MWh | Configuration: 2 × BRIGHT GRID-500 Plus™
Client data
- 1MW
- Power ratingAcross two BRIGHT GRID-500 Plus™ units
- 1.104MWh
- Storage capacityAvailable for regulation and support duty
- Sub-second
- Response timeMillisecond-level frequency reaction
- Apr 2024
- CommissionedOperating on the distribution network
Site conditions
- High and growing renewable penetration on the local network
- Frequency deviation events outside acceptable margins
- Cold-climate installation and thermal management requirements
- Grid-services market participation requirements
The challenge
- A Swedish network operator faced increasing frequency fluctuations from growing renewable penetration
- Traditional grid stabilisation methods were expensive and slow to respond
- Need for flexible balancing capacity across the local distribution network
Scope of supply
- 2 × BRIGHT GRID-500 Plus™ units
- 1MW / 1.104MWh grid-connected battery system
- Fast frequency response and grid-forming support
- Protection, metering and network operator interfacing
- Nexus™ monitoring, telemetry and service dispatch
Delivery timeline
01
Network study
Deviation events and response requirements assessed
02
Installation
Two units installed at the constrained node
03
Commissioning
April 2024, including grid compliance testing
04
Operation
Continuous frequency regulation and services delivery
Technical specifications
- System
- 2 × BRIGHT GRID-500 Plus™
- Rated power
- 1 MW
- Usable capacity
- 1.104 MWh
- Response time
- Sub-second (millisecond-level reaction)
- Services
- Frequency regulation and power quality support
- Cell chemistry
- LFP with integrated battery management
- Thermal management
- Cold-climate rated HVAC and heating
- Control platform
- Bright Grid Nexus™ telemetry and service dispatch
- Commissioned
- April 2024
- Grid interface
- Distribution-connected, network operator interfaced
Project documents
Download the full data sheet for this deployment, or the complete systems handbook covering every Bright Grid platform and series.
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The solution
Two BRIGHT GRID-500 Plus™ units provide fast-response frequency regulation and grid support services. The battery system responds to frequency deviations in milliseconds, maintaining power quality across the local distribution network.
Outcome
Fast-response grid support, enhanced power quality, and improved network resilience. The system supports greater renewable energy penetration while reducing the operational impact of frequency fluctuations on the electricity network.
- Sub-second frequency response capability
- Enhanced power quality for the local distribution network
- Support for increased renewable energy integration
- Revenue from grid services participation