Backup power is now a leasing feature, an insurance question and, for many building classes, a code requirement. Ozwide Power supplies and installs standby generators for new commercial developments across Perth — office, retail, logistics and warehousing, medical centres, childcare, hotels and mixed-use — and helps developers decide early what should be base-build and what can be left to tenants.
We size for the tenancy mix you expect, not just the essential services the code demands, so the generator you install at practical completion still makes sense when the anchor tenant arrives with a data room and a commercial kitchen.
Base-build generator or tenant generator?
Two questions decide it. Does the base building need an emergency supply for fire pumps, lifts and smoke control regardless of who moves in? And will tenants expect power to their own equipment during an outage? The usual answers by development type:
| Standby power by development type→ | |||
| Development | Base-build essential supply | Typical tenant expectation | Typical set size |
| Multi-storey office | Yes — fire & life safety | Nominated tenant circuits via a generator-backed bus | 150 – 500 kVA |
| Retail / shopping centre | Yes — fire, smoke, lifts | Refrigeration, POS, security; anchor tenants often add their own | 200 – 600 kVA |
| Warehouse / logistics | Fire pump if sprinklered | Cold rooms, dock doors, WMS servers | 60 – 250 kVA |
| Medical centre / day surgery | Yes | Theatres, sterilisation, IT, vaccine fridges | 60 – 200 kVA |
| Childcare / education | Emergency lighting, alarms | Kitchens, refrigeration, comms | 20 – 60 kVA |
| Hotel / serviced apartments | Yes — lifts, fire, pressurisation | Lobby, kitchens, cold rooms, guest essentials | 200 – 500 kVA |
Designing for the tenants you have not signed yet
- Size for the expected load profile, not the minimum code load — a 250 kVA set that runs the essential board plus nominated tenant circuits costs far less than a second generator later.
- Provide a generator-backed distribution bus so tenant circuits can be connected at fit-out without touching the ATS.
- Allow bulk fuel for 8–24 h at 75% load; extended autonomy is easy to build in at day one and expensive to retrofit.
- Specify remote monitoring so facilities management sees test runs, alarms and fuel level from day one.
- Leave space and access for a future upsizing or paralleled second set if the master plan has further stages.
Staged developments and multiple sets
For estates and staged projects we supply matching sets stage by stage — same controller family, same ATS type, same service schedule — so the facilities team is not managing three brands. Paralleling controllers let two sets share load and provide N+1 redundancy for stages that add critical tenants.
What Ozwide Power delivers
- Load and tenancy assessment with the electrical consultant
- Pramac standby sets 20–777 kVA (custom to 4.2 MVA), acoustic canopies for boundary limits, bunded fuel tanks
- Pramac LTS automatic transfer switches 100–3,200 A
- generator installation, crane and rigging, commissioning and handover testing to AS/NZS 3010
- Maintenance agreements with monthly test runs, annual load bank tests and digital records in the customer portal
- A single point of contact from design through to the tenant fit-out phase
Why buildings and businesses choose Ozwide Power
- Pramac Authorised Dealer — factory support, genuine parts and warranty on every set we supply.
- One team, whole lifecycle — sizing, supply, automatic transfer switches, generator installation, commissioning, then servicing & maintenance for the life of the unit.
- Perth-based technicians covering the CBD and every metro industrial precinct, with regional WA by arrangement.
- Standby stock sets from 2 to 777 kVA in stock or on short lead time, plus 100–3,200 A transfer switches.
- Standby custom sets up to 4.2 MVA — lead times depend on engine availability and factory capacity.
- Digital service reports and a customer online portal for the compliance records building managers, insurers and auditors ask for.
Frequently asked questions
Is a standby generator required for a commercial development?
If the building has a fire pump, stair pressurisation, fire-mode lifts or smoke exhaust, the NCC requires those systems to keep running through a mains failure, which in practice means a generator. Beyond that it is a commercial decision — increasingly one tenants and insurers expect.
Can tenants connect to the base-build generator?
Yes, if it is designed for it: spare capacity on the set and a generator-backed distribution bus. Tenant loads are then added at fit-out under a simple connection agreement.
When should the generator be priced into the project?
At design stage. We price the set, ATS, canopy, fuel and installation as one package so it sits in the feasibility and the tender, not as a variation after award.
How is the generator maintained after completion?
Under a maintenance agreement in the facilities budget: monthly test, annual service and load bank, digital reports. We also service sets we did not supply.
Planning backup power for a development?
Call (08) 6385 1104 or request a generator quote online. Send us your load schedule, drawings or a photo of the existing set and we will come back with a sized, priced proposal.
