# Saudi Electricity Company (SEC) Issues Major Awards for 2.5 GW / 10 GWh Grid-Scale BESS Across Central and Western Substations

> The Saudi Electricity Company (SEC), in partnership with PIF-backed Badeel, has awarded landmark engineering and procurement contracts totaling 2.5 GW / 10 GWh of standalone battery energy storage systems (BESS) installed across strategic 380 kV and 110 kV transmission substations in Saudi Arabia.

- **Publish Date:** 2026-09-11
- **Category:** energy-storage
- **Reading Time:** 5 min
- **Original Source Citation:** [Saudi Electricity Company (SEC) & Water and Electricity Holding Co. (Badeel)](https://www.se.com.sa/en-us/Pages/MediaCenter/PressReleases/2026/sec-awards-25gw-grid-scale-bess-substations-september-2026.aspx)
- **Tags:** SEC, Saudi Arabia, BESS, Substations, Grid Storage, LFP Battery, Vision 2030
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## Massive 4-Hour Storage Deployments for Solar Peak Shaving

Distributed across five major transmission nodes in Riyadh, Qassim, Makkah, and Madinah, the 4-hour systems will capture daytime solar surplus from multi-gigawatt PV farms and discharge during peak nighttime air conditioning demand.

The packages comprise modular liquid-cooled lithium iron phosphate (LFP) containers, outdoor bi-directional power conversion inverters, and 380/33 kV step-up transformers with specialized high-ambient thermal radiators rated for 55°C desert conditions.

## Anchoring National Grid Stability Under Vision 2030

Equipped with advanced grid-forming control algorithms, the storage fleet will inject synthetic inertia and sub-cycle reactive power compensation, protecting the national transmission grid against sudden generator trips.

Commercial operations are phased through 2027 and 2028, marking one of the world’s largest procurement programs for grid-scale battery flexibility.

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