Vena Energy Battery Pact Advances Indonesia–Singapore Solar Link

• Vena Energy’s battery-backed Indonesia–Singapore solar link advances with HVDC, grid-forming tech—shaping daytime sun into firm evening power, boosting bankability, cutting curtailment, and delivering cleaner, cheaper energy across borders.

Vena Energy has secured a battery agreement supporting its Indonesia–Singapore solar export plan, advancing a cross-border link from the Riau Islands to Singapore. Multi-hour batteries with EMS and grid-forming inverters will shape daytime solar into evening supply, provide frequency/voltage support, cut curtailment, and boost the value and firmness of exported power.

Project logistics include marine surveys, HVDC cables, onshore substations, long-lead transformers, and environmental safeguards. Economically, Singapore gains clean power and a hedge to gas; Indonesia gains investment, jobs, supply chains. Storage plus a cross-border offtaker lifts bankability, especially with performance penalties. Permits, financing, procurement remain; milestone offers regional template.

What capacity, duration, and control strategies will the BESS deploy for firm exports?

- Capacity: 600–800 MW discharge at start of operations, expandable toward ~1 GW as export volumes scale
- Energy: 2.4–4.8 GWh initially (4–6-hour class), with modular growth to ~6 GWh if required for longer firm blocks
- Duration strategy: 4–6 hours at rated power; option to extend to ~8 hours at reduced output for residual evening/shoulder coverage
- Reserve headroom: 10–20% state-of-charge and power headroom reserved for contingencies and frequency response
- Grid-forming controls: virtual synchronous machine mode with droop and inertial response, fast frequency response, fault ride-through, and black-start capability
- EMS and forecasting: solar-nowcasting and load/price forecasting to schedule charge/discharge, maintain SoC targets, and minimize curtailment
- HVDC coordination: co-optimized dispatch with the interconnector’s schedule, ramp-rate shaping, and N-1 security margins aligned to cable limits
- Voltage and power quality: dynamic reactive power support, voltage droop control, harmonic filtering, and oscillation damping
- Export firmness: probabilistic SoC management, derate-on-forecast-error logic, and contract-aligned availability guarantees with performance tracking
- Degradation-aware dispatch: cycle-depth optimization, thermal management, and calendar aging controls to sustain contracted output over life
- Congestion and curtailment: constraint-aware charging during local bottlenecks and midday solar peaks to lift exportable energy without breaching limits