How do I check a greenhouse’s backup power and alarm systems?

Begin with what the generator actually supports. List the loads that must keep running, such as heating, circulation, vents and irrigation, then compare that with what is on the backup circuit. Ask how much fuel is stored and how long it lasts under a full load. Check the service record and when the system was last tested under real conditions.

Next, examine the alarms. Ask which conditions trigger an alert, who receives it, and what happens if that person does not respond. Test it if the seller allows. An alarm that only sounds in an empty building is no protection at night. Ask about past outages, what was lost and how fast the crew responded. Finally, ask about the people and the paperwork. Who is on call, and is there a written response plan? Ask what insurance covers for crop loss from power failure. A qualified electrician should inspect the equipment, and your insurer can explain coverage. Succession matters here too: the routine often lives in one person’s head. Write down every weakness you find and ask the seller what it would cost to fix. Some gaps are simple, such as updating a phone list. Others, like an undersized generator, change what the business needs from you in the first season.

Key takeaways

• Watch the generator and switchover run, rather than accept a description.
• Trigger an alarm and see who is alerted and how fast.
• Ask about past outages, the on-call plan and what insurance covers.