Backup systems that keep Harper Court’s elevators running

Harper Court is a commercial real estate redevelopment in Chicago’s Hyde Park neighbourhood, with more than one million square feet of retail and commercial space. Shops, restaurants, entertainment venues and a hotel create constant movement between floors, from morning deliveries and staff arrivals to evening guests. The vertical transport system therefore supports commerce, access and building operations at the same time.

Lifts are often the least noticed part of a successful mixed-use property. That changes when a car stops between floors, a service elevator is unavailable during a busy trading period, or visitors cannot reach an upper-level restaurant. Even a short interruption can create queues, missed deliveries and frustration for tenants whose businesses depend on prompt access.

This article focuses on the energy backup systems that keep Harper Court’s elevators running during outages, the operating modes they support and the measures that give tenants confidence when normal electricity is interrupted.

Why lift resilience matters in a mixed-use destination

A lift outage in a mixed-use development affects several groups at once. Guests need to reach hotel rooms and dining venues, employees need to open shops and restaurants, and service teams must move deliveries, waste and equipment. Essential services, including security and building management, also rely on controlled movement throughout the property.

Programming amplifies the operational effect. Pop-up concepts, special events and seasonal promotions can produce sharp changes in demand, and support for temporary retail uses adds another reason to maintain dependable lift access. A retail destination works best when every floor remains easy to reach from the moment its doors open.

Reliability also has an accessibility dimension. Passengers with limited mobility may have no practical alternative to a lift, while people carrying luggage, catering trays or merchandise need a safe and predictable journey. Backup power therefore supports more than convenience: it helps maintain an inclusive, functioning building during disruption.

How backup power protects each elevator trip

A resilient elevator system responds in stages. An uninterruptible power supply or battery bank immediately supports the lift controller, safety circuits, communications and, depending on the design, the door equipment. This short-term supply bridges the delay while a generator starts or the building’s electrical system changes operating mode.

For elevators connected to standby generation, an automatic transfer switch moves designated loads from the utility supply to the generator. Critical-operation or essential elevators may then resume service, while other cars remain out of use. A hotel may have guest lifts and service lifts assigned differently, so the operating plan matters as much as the amount of backup capacity available.

Elevator behaviour during an outage is not identical across every car. Some systems complete the current journey, stop at the nearest landing and release passengers. Others use stored energy for a controlled descent, level the car and open the doors under an approved emergency procedure. The aim is safe, controlled movement rather than an indefinite power supply, and tenants should confirm which arrangements apply to each lift.

Generators, batteries and emergency operating modes

Standby generators provide the longer-duration layer of protection. They can supply a generator-backed lift alongside emergency lighting, fire protection, pumps and other priority circuits. For reliable operation, the installation also needs an automatic transfer switch, suitable fuel storage, ventilation, exhaust routing, battery charging and freeze protection suited to Chicago’s winter conditions.

Batteries serve a different role. They can maintain control power and communications during a brief interruption, complete selected movements or return a car to a landing when the utility supply fails. Battery-backed rescue features do not normally replace a generator for extended operation, so the two systems should be designed as complementary layers rather than interchangeable products.

Operating controls must be verified against the building’s emergency plan. Utility loss, generator failure, low fuel, excessive battery temperature and an open landing door can each affect system availability. Remote monitoring gives building staff earlier warning, while scheduled load tests reveal whether transfer equipment, lifts and emergency circuits perform together under realistic conditions.

Reliability checks for tenants and building teams

Regular testing is what turns backup capacity into dependable performance. Technicians should simulate a utility failure, confirm transfer timing and observe whether each lift follows its approved outage procedure. Test records should cover generator runtime, battery condition, alarm history and any corrective work required after an exception.

Clear digital communication matters alongside the machinery. A related residential-management example is the rent payment portal, which shows how a straightforward self-service workflow can reduce administrative friction. Lift-status updates should follow the same principle: one reliable channel, plain language and timely notifications.

For building operations

• Simulate utility loss and confirm transfer timing.
• Run the generator under a representative building load.
• Test battery-backed door and communication functions.
• Record fuel levels, runtime and alarm history.

For tenants and visitors

• Follow posted lift-status notices and staff directions.
• Keep exits, stairs and accessible routes clear.
• Ask management about priority travel during an outage.

Australian conditions and standards to consider

Australian teams should separate familiar backup-power principles from local electrical assumptions. Australian commercial properties commonly use 230 or 240 volts at 50 hertz, with three-phase supplies commonly at 400 or 415 volts. Chicago installations may use 120 volts or 208/277-volt three-phase power at 60 hertz. Motors, generators, transformers and switchgear therefore cannot be assumed interchangeable across the two markets.

Regulation also has a different structure. Australian lift work is commonly considered under the AS 1735 series, while the National Construction Code is adopted through state and territory building legislation, with local requirements varying. Electrical installations must also meet applicable provisions of AS/NZS 3000. Any Australian supplier reviewing a Chicago installation should examine local code, equipment certification and commissioning records rather than relying on familiar terminology alone.

The local market offers extensive experience with diesel generators and is steadily expanding battery and uninterruptible-power options. Facilities teams in Sydney, Melbourne and Brisbane regularly manage outages caused by extreme heat, storms, bushfire smoke and equipment failures. Logged generator exercises are a familiar operating habit in many Australian commercial buildings, while battery systems increasingly provide ride-through capability for controls and communications.

Keeping retail, dining and hotel operations connected

Retail and dining tenants depend on lift service throughout the trading day. Stock must reach upper-floor venues before opening, temperature-sensitive deliveries need prompt handling, and staff need dependable access during shift changes. Lift availability also influences how comfortably visitors move between stores, restaurants and entertainment spaces when several destinations share the same vertical route.

Harper Court’s contribution to the Hyde Park dining scene reinforces the need for reliable access across a busy collection of venues. Diners may not consider backup generators when they choose a restaurant, yet dependable lift service contributes directly to arrival times, delivery performance and the overall visitor experience.

Hotels face a broader operating mix. Guests need lift service at unpredictable hours, while housekeeping, room-service and maintenance teams need service lifts with different loads and schedules. During an outage, building management should communicate which cars remain available, where passengers should wait, how accessible travel is handled and when normal operation will resume.

Plan the next step with confidence

Tenants and prospective occupiers should request the current scope of the lift backup arrangement. Useful details include which elevators receive generator power, how long battery-backed systems can operate, what each lift does after utility loss, who monitors alarms and how tenants receive instructions during an extended interruption.

Contact the Harper Court leasing team to review the building’s lift-backup provisions, essential-lift schedule, test records and emergency communication protocol, and coordinate the right operating plan for your space.