Auto-start generators provide automatic backup power the moment utility power fails. Aurora Generators builds diesel auto-start generators for homes, businesses, and critical infrastructure that require dependable, unattended operation during power outages.
What is an Auto-Start Generator?
An auto-start generator is a generator system that starts automatically when utility power is lost and shuts down once power is restored. The system uses an automatic transfer switch (ATS) and a generator controller to operate automatically without user intervention.
Auto-start generators are most commonly used as standby generators for homes, commercial buildings, farms, telecom sites, and off-grid systems.
How Auto-Stat Generators Work?
- Utility power is monitored by the ATS
- Power failure is detected
- Start signal is sent to the generator controller
- Engine starts and stabilizes
- Load transfers from utility to generator
- Power returns and system shuts down safely
What are the Key Components of an Auto-Start Generator System?
Automatic Transfer Switch (ATS)
- Prevents backfeeding
- Detects outages
- Transfers load safely
Generator Controller
- Manages start/stop
- Monitors voltage, frequency, engine health
- Handles warm-up and cool-down timers
Diesel Engine
- Reliable for long runtimes
- Better fuel storage stability than gasoline
- Preferred for standby and emergency power
Why Choose a Diesel Auto-Start Generator?
- Long engine life
- Lower fuel consumption at load
- Better for extended outages
- Suitable for cold climates
- Common in critical infrastructure
Aurora Generators Auto-Start Systems
- All Aurora standby generators support auto-start
- Compatible with industry-standard ATS units and Off-grid solar systems with a two-wire start
- Tested under load before delivery
- Built in Canada
- Diesel-only focus for reliability
What are the Common Applications?
- Homes with frequent outages
- Rural and off-grid properties
- Backup for solar-powered homes
- Commercial buildings
- Farms and agricultural operations
- Telecom and data systems
- Emergency backup for heating systems
Auto-Start Generators FAQ
1) What is an auto-start generator?
An auto-start generator is a standby generator system that starts automatically when utility power fails and shuts down after power is restored. It works with an automatic transfer switch (ATS) and a generator controller.
2) How does an auto-start generator know the power is out?
The ATS monitors the utility supply. When voltage or frequency drops outside the preset limits, the ATS signals the generator controller to start the engine.
3) What is an ATS and why do I need it?
An automatic transfer switch (ATS) is the device that detects outages and safely transfers your electrical load between utility power and generator power. It also prevents backfeeding into the grid, which is a major safety hazard.
4) How long does it take to start and transfer power?
Most systems restore power in roughly 10 to 30 seconds. The exact time depends on the ATS settings, engine start time, and programmed warm-up delays.
5) Can an auto-start generator power my whole house?
Yes, if the generator and ATS are sized for your electrical load. Another option is a “managed load” setup where large loads (like electric heat or central AC) are shed or staged to fit the generator capacity.
6) Are auto-start generators safe for electronics?
They can be, when the generator has proper voltage regulation and the system is installed correctly. For sensitive loads, sizing, grounding, bonding, and transfer equipment selection matter. If you have medical devices, servers, or telecom equipment, mention that during sizing.
7) Why choose a diesel auto-start generator instead of gasoline or propane?
Diesel is commonly chosen for longer run capability, strong durability under load, and stable fuel storage compared to gasoline. Propane can be convenient where large on-site tanks already exist. The best choice depends on runtime goals, fuel logistics, and your site conditions.
8) Do auto-start generators work with solar and battery systems?
Many do. In hybrid systems, the generator can be started by a two-wire start signal from an inverter or control system when battery state-of-charge is low. Confirm compatibility between the generator controller and your inverter brand and settings.
9) How often should an auto-start generator be exercised?
Most standby systems are exercised weekly or bi-weekly. A loaded exercise (or periodic load test) is often recommended to confirm real performance. The right schedule depends on your usage, climate, and how critical the loads are.
10) What maintenance does an auto-start generator need?
Typical maintenance includes oil and filter changes, fuel filter service, air filter checks, battery testing, coolant checks (if liquid-cooled), and inspection of the ATS and wiring. Maintenance intervals depend on engine model, hours, and calendar time.