Cost Opinions – RMH Group

RMH provided mechanical, electrical, and lighting design services for the expansive Philip S. Miller Park and Miller Activity Complex.. Nestled among the area’s scenic geological formations, this 320-acre park delivers a wide range of indoor and outdoor recreational experiences for residents and visitors.

RMH designed systems to support the park’s diverse amenities, including a synthetic turf athletic field, zip line courses, and a 2,500-seat amphitheater for concerts and live events. The 2,850-square-foot Millhouse offers flexible indoor and outdoor spaces for weddings, family gatherings, and special events. Visitors enjoy picnic pavilions, an outdoor fireplace, and water features such as two ponds fed by a recirculating creek and a splash pad for children.

Inside the Miller Activity Complex, RMH engineered systems for full-sized and half-sized turf fields, a 3,000-square-foot play area, a 5,000-square-foot trampoline zone, batting cages, and an 18-hole golf simulator. The indoor aquatics center features a lap pool, a leisure pool with a winding water slide, and a vortex whirlpool that simulates rushing currents.

Our team delivered energy-efficient, code-compliant solutions that enhance comfort, safety, and functionality across the entire site.

BYU-Idaho is Idaho’s largest private University, sitting on a 430-acre campus with a district heating loop providing space heating for 40 buildings. RMH served as mechanical, electrical, and controls engineer for this project to add cogeneration capabilities to the Rexburg campus heating plant. The University replaced its coal-fired boiler plant with a new, multi-leveled heating plant containing a combined heat and power (CHP) system using natural gas. The project began with a conceptual study/economic analysis, which investigated the economic viability of adding cogeneration capabilities.

After completing the conceptual study and economic analysis, RMH designed the installation of a nominal 5.7MWe natural gas turbine with a 50,000 pph HRSG, which has a calculated simple payback of eight years. RMH’s design for the gas turbine featured a fully enclosed evaporative cooling system to increase the turbine output, as well as a turbine enclosure heat reuse system.

This project advances high-power electric vehicle (EV) charging by developing a megawatt-scale battery emulation framework at the Flatirons Campus. The system enables real-time testing of EV charging scenarios, focusing on integration with renewable energy and grid infrastructure.

At its core is a custom-designed MWh-scale lithium-ion battery emulator that replicates the dynamic behavior of various battery chemistries used in heavy-duty vehicles and stationary storage. Using Digital Real-Time Simulators, hardware-in-the-loop techniques, and grid simulators, the team built a robust platform for evaluating charge/discharge cycles and system-level interactions.

This infrastructure supports research in Vehicle Grid Integration, Behind-the-Meter assets, and Distributed Energy Resource applications, paving the way for more innovative and resilient EV-grid ecosystems.