Working with a regional medical center here in Springfield on Empire Electric and struggling with their benchmarking. They operate 24/7/365 with critical care units that can't be shut down, plus they have huge steam loads for sterilization and kitchen operations. Normal commercial benchmarking doesn't seem to apply. How do you guys handle hospitals and other critical facilities? Looking at $180K+ monthly bills so even small efficiency gains matter.
Hospital usage analysis - how do you handle 24/7 operations?
Hospitals are tough because of the life-safety requirements. For Ochsner facilities here on Entergy, I separate out the critical loads (ICU, OR, emergency) from the non-critical (admin, cafeteria, parking) and benchmark them differently. Critical areas should be compared only to other hospitals, but admin spaces can use standard office building metrics. Also track your steam-to-electric ratios - that's where big savings usually hide.
Elmer, I do a lot of work with Grady and other Atlanta hospitals on Georgia Power. The key is breaking down usage by department and time of day. OR suites should have predictable patterns based on surgery schedules. If you're seeing high overnight usage in non-critical areas, that's usually lighting or HVAC running unnecessarily. Get 15-minute interval data and map it against their staffing schedules - the waste patterns become obvious.
Don't forget about the different rate structures hospitals get. Here in PA, Geisinger is on PPL's special medical facility tariff HT-MF which has different demand ratchets than standard commercial. Make sure you're comparing apples to apples when looking at costs per bed or per square foot. Also, older hospitals often have grandfathered rate schedules that newer facilities can't access.
Working with St. Luke's here in Boise on Idaho Power and found their biggest issue was simultaneous heating and cooling. The building automation system was fighting itself - chilling the OR suites while heating patient rooms right next door. Fixed that and saw a 15% reduction in total kWh. Sometimes the problem isn't the benchmark, it's basic operational inefficiency.
Cincinnati Children's Hospital taught me to always separate emergency department usage from the rest of the facility. ED usage spikes are completely unpredictable and will throw off your whole analysis. I track ED as its own utility account when possible, or at least flag those periods in the data. Same goes for any major surgery days - cardiac procedures can double your OR electrical load.
Chuck makes a good point about ED spikes. Also watch for seasonal patterns that don't match typical commercial buildings. Hospitals see higher usage in winter due to flu season (more patients, more equipment running) and summer due to increased air conditioning needs in patient rooms. UC Health here on Duke Energy shows 20-25% swings that would be huge red flags in an office building but are totally normal for healthcare.
Been auditing Sacred Heart here in Spokane on Avista and their biggest issue was old MRI and CT equipment. Those machines are power hungry beasts and the older ones don't have good power management. New MRI can use 40% less electricity in standby mode. If your hospital has equipment from before 2010, that's probably where your efficiency opportunities are hiding.
Great thread everyone. Larry's point about medical equipment is spot on. Here at St. Alphonsus in Boise, we found that the linear accelerator for cancer treatment was drawing full power 24/7 even when not treating patients. Simple timer controls cut that load by 60% during off hours. Medical facilities often have equipment that nobody thinks to turn off because "it needs to be ready" - but ready doesn't mean full power.
Working with Methodist Le Bonheur here in Memphis and MLGW, I always recommend getting the facilities manager involved in the analysis. They know which systems can be optimized and which are locked down by medical requirements. Don't try to benchmark a hospital like any other building - the life safety systems create usage patterns that look like problems but are actually required by code.
This has been incredibly helpful everyone. I'm going to start by separating the critical care areas from general hospital operations and get more granular interval data. The medical equipment angle is something I hadn't considered - will definitely audit their MRI and surgical equipment power management. Thanks for all the insights!
Elmer, also check if Empire Electric has any special programs for hospitals. Idaho Power offers rebates for medical facility efficiency upgrades that can help offset the audit costs. Many utilities have healthcare-specific programs that most auditors don't know about. Worth a call to their commercial account rep.