Off-grid security, Singapore
Nebula v01: remote security on solar since 2022
100+ to 4 site visits a year
Site photos, May 2022. Faces blurred.
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What we built, and what it changed.
Clients named only with consent.
Telecom, Australia
Lithium backup for Optus and Telstra networks
3,878 kWh since 2021
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Telecom, Pacific and Philippines
Rack batteries for island and city networks
Fiji 2024, Manila 2020
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Solar and microgrids
Solar for commercial sites, off-grid power for a port
Indonesia and Guyana
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Where we have worked.
Off-grid security, Singapore
11 January, the wettest day of a 17-day record: 22.8 mm of rain, 24 hours of supply. Battery full again by late morning on all 17 days.
Fifteen remote security sites stopped needing a battery run every few days.
Flyovers and exposed pipelines, no grid, and a crew driving out to swap batteries. We installed solar and lithium cabinets with remote monitoring.
100+ to 4
site visits a year, per site, before and after
- Order
- December 2021
- Installed
- 2022, 15 sites
- Monitoring platform
- 2023, on the client's own servers
- Each system
- 150 W design load, 15.4 kWh battery, 2.7 kWp solar
- Fleet check, Nov 2023
- 15 of 15 online, no alarms
- Now
- 4 planned visits a year per site
Telecom, Australia
Backup for national mobile networks across Australia.
Lithium rack batteries at mobile sites in every mainland state since 2021.
3,878 kWh
of lithium backup for Australian telecom networks
- Customers
- Vertiv, for Optus and Telstra sites; YHI
- Where
- QLD, NSW, VIC, SA, WA
- Since
- 2021, repeat orders to 2026
- Product
- 808 rack modules, 48 V 100 Ah, 2U and 3U
Grid and industrial
Containerised and cabinet storage for grid and industrial sites.
Supplied in 2026 to an Australian power solutions company, for telecom, mining and other sites.
3,753 kWh
of grid and industrial storage in 2026
- System
- 835 kWh, 0.5C, liquid cooled
- Rack batteries
- 2,918 kWh, 460 modules: 3U 100 Ah, 4U and 6U 200 Ah
- Chemistry
- Lithium iron phosphate
Telecom, Pacific and Philippines
The same rack batteries keep island and city networks on air.
Our first battery order came from Manila. The same modules now back a network in Fiji.
- Fiji
- 53 kWh, telecom operator, 2024
- Philippines
- 14 kWh, power solutions company, 2020
Solar and microgrids
Solar for commercial sites, off-grid power for a port.
176 kWp of commercial solar in Indonesia, and a port in Guyana that runs its public address system on the sun.
- Indonesia
- 134 kWp in 2024, 42 kWp in 2025
- Guyana
- Solar public address system for a port, 2023