For most offices and workshops, a power outage is an hour of inconvenience. For a food production operator with a cold room full of frozen product, two hours without power means an entire inventory write-off. For a chemical manufacturer mid-batch, an uncontrolled shutdown can create a safety hazard. Singapore has one of the most reliable electricity grids in the world, but outages happen, and when they do, the impact depends entirely on what is running inside your unit. This post helps you assess whether backup power is something you need to plan for, and if so, what type of backup power makes sense for your operation.
Operations That Are Especially Vulnerable
Cold storage and frozen goods. A cold room maintaining -18°C with a full inventory of frozen product is the most obvious case. Even two to three hours without power can push temperatures above safe thresholds, requiring the entire stock to be written off. For a food production operator, this is existential.
Continuous process manufacturing. Some production processes (chemical blending, pharmaceutical manufacturing, certain types of metalworking) cannot be safely stopped mid-cycle. An outage mid-process may require a full restart, waste raw materials, or create a safety hazard.
IT and data-dependent operations. Automated production lines, enterprise resource planning systems, and temperature monitoring loggers all rely on continuous power. A sudden shutdown can cause data loss, equipment damage, or production delays.
Safety systems. Fire alarm panels, emergency lighting, smoke extraction systems, and security systems should ideally stay operational. Most buildings provide backup for common area safety systems, but individual tenant units typically do not have dedicated backup unless arranged.
Cleanroom and climate-controlled environments. Precision manufacturing, pharmaceutical labs, and some electronics assembly operations can be disrupted by temperature or humidity excursions. A few hours of outage can ruin work-in-progress.
Backup Power Options
Uninterruptible Power Supply (UPS)
A UPS provides battery-backed power immediately when the main supply fails. It bridges the gap between outage and generator start-up (if you have one) or carries you through short outages.
- Capacity: from small units protecting a single server ($500) to large industrial UPS systems capable of powering an entire production line for 30–60 minutes ($15,000–$80,000+)
- Duration: typically minutes to a few hours, depending on battery capacity and load
- Best for: servers, control systems, safety equipment, data protection, cold room alarms and monitoring
- Not suitable for: running heavy production equipment, cold room compressors, or industrial machinery
A UPS does not run your operations. It keeps critical systems alive long enough for an orderly shutdown or for a generator to start.
Generator Set (Genset)
A diesel or gas-powered generator can supply power for hours or days, depending on fuel supply.
- Capacity: small portable generators (10–30 kVA, $10,000–$30,000) to large industrial fixed installations (500 kVA+, $100,000+)
- Duration: limited only by fuel supply. Diesel generators typically run 8–12 hours on a full tank before refuelling is required.
- Best for: whole or partial facility backup during extended outages, cold storage continuity, continuous process operations
- Requirements: outdoor or ventilated placement space, fuel storage (NEA-regulated above certain quantities), exhaust routing, noise attenuation, regular maintenance
- Regulatory: genset installations may require NEA approval for emissions and noise compliance. SCDF has requirements for fuel storage in occupied buildings.
Building-Provided Backup
Some industrial buildings, particularly newer JTC developments and purpose-built multi-tenant factories, have building-level backup generators that serve common services: lifts, fire systems, emergency lighting, car park ventilation.
This does not cover individual tenant units unless specifically provided in your lease agreement. Verify what the building backup actually covers. “The building has a generator” is meaningless if it only keeps the lift running during outages.
Key Considerations Before Investing
What do you actually need to keep running? Distinguish between critical loads (cold rooms, safety systems, data) and non-critical loads (general lighting, office equipment, non-essential production). Backup for everything is expensive. Backup for just the critical items is often achievable at a reasonable cost.
Duration matters. A UPS is sufficient if outages in your area typically last under an hour. If you are in an older estate with a history of longer outages, or if your operation cannot shut down safely even briefly, a generator is warranted.
Cost and space trade-offs. A UPS for essential equipment (servers, cold room alarm system, emergency lighting) costs $2,000–$15,000 installed. A small industrial genset capable of keeping a cold room running starts around $20,000–$50,000 and goes up from there. Installation, fuel storage, exhaust routing, and ongoing maintenance add to the total cost of ownership.
Placement and building rules. Generators need ventilation and exhaust routing. Indoor installations require a dedicated room with acoustic treatment. Building management may have restrictions on external generator placement. These constraints should be verified during the viewing, not after you sign the lease.
Practical Recommendations
For most small-to-medium industrial tenants with standard operations: a UPS covering critical systems (servers, monitoring equipment, cold room alarm) is sufficient and cost-effective. It protects your data and gives you visibility during an outage.
For operators with cold storage or frozen inventory: seriously evaluate a genset or negotiate with your landlord for a unit in a building with provisions for tenant backup power. The cost of a genset is a fraction of a single cold room inventory loss.
For everyone: ask during the viewing whether the building has a backup generator and what it covers. Put the answer in writing. Check whether the building has space or infrastructure for a future tenant generator installation if you might need one later.
Factor backup power into your operational risk assessment and your fit-out budget, not as an afterthought when the first outage hits.
References
[1] EMA — Acts & Regulations (Electricity Supply). https://www.ema.gov.sg/regulations-licences/regulations/acts-regulations
[2] EMA — Electricity Legislation and Regulations. https://www.ema.gov.sg/Licensees_Electricity_Legislation_and_Regulations.aspx
[3] NEA — Environmental Protection. https://www.nea.gov.sg/our-services/pollution-control
[4] SCDF — Fire Safety Guidelines. https://www.scdf.gov.sg/home/community-and-volunteers/fire-emergency-guides/fire-safety-guidelines-for--residential-estate
[5] EMA — Electrical Worker Licences. https://www.ema.gov.sg/regulations-licences/licences/worker-licences/electrical-technicians-licence
[6] JTC Corporation — Industrial Space Information. https://www.jtc.gov.sg/find-space/