How Are Summer Operations Supported at Mountain Ski Resorts?

The seasonal changeover design covers every system that behaves differently in summer: heating plants with their summer shutdown or standby modes, the chilled water or DX cooling serving the summer loads, ventilation sequences for the summer occupancy, and the domestic water and wastewater systems with their summer profiles. I write the changeover procedures as step-by-step operations documents — what gets valved, what gets reset, what gets tested — and I design the control system with distinct winter and summer modes so the changeover is a mode switch plus the physical steps. Seasonal buildings get the full recommissioning procedure: plumbing sanitized and tested, HVAC serviced and balanced, life safety verified. The snowmaking and slope systems get their summer maintenance program designed in. I also plan the shoulder seasons explicitly: the freeze protection that stays armed through the spring and fall nights when the resort is between modes.

The summer program's engineering starts with the venue inventory: the event spaces, the bike park, the attractions, and the base facilities' summer uses. I design the power distribution for events — the concerts and weddings with their staging, sound, and lighting loads — with the temporary power provisions that keep event setups safe and simple. Water, restroom, and waste capacity are checked against the summer crowd peaks, which differ from the winter ones. Communications serve the summer operations: the bike park's needs, the event coordination, the guest Wi-Fi at the summer venues. Each attraction's manufacturer requirements — the alpine slide's power, the coaster's controls — are integrated into the utility plan. The summer engineering is designed with the same rigor as the winter: the resort's twelve-month business deserves twelve months of engineering.

Summer readiness is verified in the spring. I walk the changeover procedures, recommission the seasonal buildings, prove the summer venue utilities, and confirm the snowmaking maintenance program is scheduled. The controls are switched to summer mode and verified. Here is the checklist I hand resort operations teams.

• Write seasonal changeover as documented procedures — valve positions, setpoints, test steps
• Design controls with distinct winter and summer modes, not a single compromise sequence
• Recommission seasonal buildings each spring: plumbing, HVAC, and life safety verified
• Engineer summer venues' power, water, and communications for the actual summer peaks
• Schedule the snowmaking system's summer overhaul — November reliability is built in June