Wilsons' energy management system installation


Wilson’s Fitness’ MAC facility is a well-known fitness center in Columbia, MO which offers its member access to a variety of facilities for recreational activity: weight training and fitness equipment, pools, tennis, basketball, crossfit, and more. In early 2016, Wilson’s Fitness contacted EnergyLink to survey its MAC facility in Columbia, Missouri.

The Wilson’s “MAC” facility is a large (enter sq.ft) metal building that over the years has been the home of several sports-related businesses since the mid-70’s. It’s held up well over time, but it was clear that the building was in need of upgrades in several areas.

Project specifics:


Wilsons’ Fitness – MAC Facility


Columbia, Missouri

Project Date

March 2017

Services Provided

Energy management system, smart solar, ice energy storage

Additional services

Chiller system, LED lighting retrofits

Project Length

2 months

The Challenge:

In the process of redeveloping the MAC, the management team at Wilson’s decided to integrate renewable energy and efficiency in the process. EnergyLink’s comprehensive energy audit revealed major inefficiencies in the building’s electrical and HVAC systems, hot water heaters, building envelope and interior lighting, resulting in substantial energy usage and high electrical demand charges.

After reviewing EnergyLink’s audit and recommendations, Wilson’s decided to renovate the interior and create a new “green” facility complete with Solar, LED lighting, Automation, a new Chiller System. Adding insulation to building’s exterior walls and a Calmac ice energy storage tanks, the building will reduce energy consumption by almost $40,000 a year.

The solution:

Smart solar array

After the core building structure was properly insulated, sealed, and re-roofed, a 55.25 kW of solar array was installed via an innovative “dual tilt” racking design.

The building orientation was not optimal, so the best solution was a west facing side roof mount with a 5-degree tilt to the south. This increases production and drives down demand in the afternoon. The array is expected to produce 96,948 kWh per year,

An LED Lighting Retrofit

The entire interior of the building was illuminated with modern LED lighting, replacing the outdated 400 W metal halide and fluorescent fixtures. This saves the facility over 50,000 kWh per year, and reduce demand by over 18 kW.

New Chiller & Ice Energy Storage Systems

In the past, the majority of the original building was not conditioned, so a new Trane chiller package was installed that was compatible with A new Trane chiller package was installed compatible with Calmac ice storage tanks. Ice storage allows the facility to freeze water into ice at night and blow cool air vapors during the day.

This allows the facility to utilize a special electric rate structure called an “Energy Storage Rider”, which is offered by the City of Columbia to provide a discounted rate to customers for shifting a majority of their energy use to off-peak times.

The ice energy stored in the new system will be used at peak times to further drive down demand during the most expensive (and grid-stressing) time of the day. As a result the MAC will notice a significant reduction in electric costs and the City of Columbia will see a reduction in peak demand electric load.

Energy management system

Tying these systems together, EnergyLink’s installed our ADMS (Advanced Demand Management System) forming one cohesive energy management package.

ADMS monitors the building load determining when to store and release ice energy, controlling building temperatures and managing the facility’s peak load to ensure maximized savings.

Creating a “thinking” building

Utilizing hardware designs and algorithms, EnergyLink combined  these systems to create a constantly “thinking” building. Each project is tailored to the unique needs the building.

Wilson’s Fitness’ MAC facility is a unique example of using renewable on-site power combined with ice energy storage and automation to save money and avoids undue stress on the utility grid. An added benefit to the building and local economy.

Energy savings and statistics

Annual savings



Demand reduction


kW per year

Projected savings


After one year

Projected total savings


After 10 years

Projected total savings over life of system


Over 30 year period