Central Arkansas Library System breaks ground on new solar array

WCN Editorial Team 20 Sep 2021 NORTH AMERICA ENERGY & UTILITIES

The Central Arkansas Library System (CALS) has broken ground on a new solar array, which will help create savings and help it to achieve its goals of operating sustainably and promoting green practices throughout the state.

CALS intends to include energy-efficient practices, raise public awareness, and analyse and report their environmental impact.

In line with the first objective, CALS teamed up with the Arkansas Energy Office in 2017 to implement an energy savings performance contract, under which a state-approved company is required to implement energy-efficient upgrades free of cost.

CALS selected Entegrity out of Little Rock to audit their facilities and implement the scope of work, which includes LED lighting, water conservation measures, new HVAC equipment, and utility rate corrections.

This project was finished under budget and generated sufficient energy savings to pay for the original project and fund a 66kW solar array at the Hillary Rodham Clinton Children's Library & Learning Center with the rest of the capital.


Following two years of measurement & verification, the savings generated for this initial project have actually grown beyond the expected savings amount by over $30,000.

CALS and Entegrity have teamed up for Phase Two that includes the design and building of a new, larger array that will further offset energy consumption and generate utility savings.

The 998kW array with 3,024 modules will lead to an annual savings of $36,000.

After taking into account of this new array and the energy efficiency savings from Phase One, CALS will save a total of $5.8m over the lifetime of the project.

CALS director of facilities and operations Lance Ivy stated, "The decision to continue our project with Entegrity and produce more solar energy for CALS was an easy one. While the onsite array is perfect to increase our patrons' access to an operating solar facility, this new array will offset the energy consumption of several CALS buildings and create serious savings for us to incorporate new initiatives."

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Image: The 998kW array with 3,024 modules will lead to an annual savings of $36,000. Credit: andreas160578 from Pixabay

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