Critical Operations
Critical Operations | Generators | Electrical | Dunlap
When the grid flickers, HEP’s Critical Operations Electrical team in Dunlap keeps the lights—and life—on. Our factory-trained electricians design, install, and maintain robust generators systems that start in seconds and run for days, protecting hospitals, data centers, farms, and family homes from costly downtime. From precise load calculations to seamless automatic transfer switch integration, every project is engineered for rock-solid reliability and backed by 24/7 emergency response.
Choose from leading brands, flexible financing, and ongoing preventive maintenance plans that extend equipment life while slashing unexpected repair costs. Whether you need a quiet residential standby unit or a megawatt solution for mission-critical operations, we make power security simple, transparent, and worry-free—so you can focus on what matters most, even when the storm rolls in.
FAQs
What types of generators do you install for critical operations in Dunlap?
We specialize in commercially rated standby and prime-power diesel and natural-gas generators ranging from 30 kW to 2.5 MW. For critical operations—such as hospitals, public safety facilities, data centers, and agricultural producers—we only specify units that meet NFPA 110 Type 10 performance, UL 2200 listing, and EPA Tier 4 Final emissions (for diesel). Brands we routinely install include Caterpillar, Cummins, MTU, and Kohler, but we can support any manufacturer requested by the client.
How fast can your team respond if my generator or transfer switch fails?
Our Dunlap service hub is staffed 24 × 7 × 365. Certified technicians are on call with fully stocked service trucks and can normally be on-site within 2 hours anywhere in Peoria County and surrounding areas. For customers enrolled in our Priority Response Plan the guaranteed arrival time is 60 minutes or less. Remote monitoring alerts us the moment a fault occurs, allowing us to start troubleshooting before we arrive.
Do you offer remote monitoring and automatic transfer switch (ATS) integration?
Yes. Every critical-operations installation includes an optional cellular or Ethernet-based monitoring module that reports engine status, fuel level, battery voltage, and ATS position to our secure portal. You—or any authorized staff—can view the dashboard from a PC or smartphone. Alerts are sent by text/email, and our technicians receive the same alarms simultaneously, enabling proactive service. We also integrate and commission open-transition, closed-transition, and bypass-isolation ATSs that comply with IEC 60947-6-1 and UL 1008 standards.
What does your preventive maintenance program include?
Our standard PM program follows manufacturer and NFPA 110 Annex A recommendations: 1) Quarterly inspections with oil, coolant, and fuel checks; 2) Semi-annual oil and filter changes, battery load test, belt adjustment, and block-heater verification; 3) Annual comprehensive service with coolant flush, fuel polishing, load-bank test (at 100 % for 2 hours), alternator insulation check, ATS exercise, and controller firmware updates. Customers receive a digital service log acceptable to insurance auditors and AHJs.
How do you determine the correct generator size for my facility?
We perform a detailed load analysis that includes: a) reviewing utility bills for peak kW/kVA demand; b) conducting on-site circuit measurements with data loggers; c) listing critical equipment and their starting vs. running loads; and d) applying de-rating factors for temperature, altitude, and harmonics. Using this data we model both step-load and block-load scenarios to ensure the genset can recover voltage and frequency within 10 % in less than 5 seconds, as required by NFPA 110. A written sizing report is provided before any equipment is ordered.
Are there local codes or permits required for standby generators in Dunlap, and do you handle them?
Yes. In Dunlap and wider Peoria County you must obtain an electrical permit, a zoning/building permit for the pad or enclosure, and an EPA air-quality registration for diesel units over 300 kW. Noise ordinances limit sound pressure to 65 dB(A) at the property line during routine testing. We manage the entire permitting process: preparing one-line drawings, submitting load-calcs, coordinating inspections, and providing emissions data. All fees and paperwork are included in our turnkey proposal so there are no surprises.