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Carleton University wanted to determine and prioritize the most productive sustainability strategies across its portfolio of 41 main campus buildings totaling 4 million square feet. University officials engaged Jones Lang LaSalle, a global leader in greening real estate, as a trusted advisor to determine an approach that would maximize results. Working with our Energy and Sustainability Services team, Carleton also set a goal of creating a baseline for current energy and environmental performance against which the identified capital and operational improvements could be measured.
Green Globes and BEAT assessmentsOur team recommended using the Green Globes Energy and Environmental rating module for university campuses to costeffectively measure the performance of all university buildings on the campus. This initiative can be used to both identify individual opportunities for green improvement, and to establish campus-wide sustainability benchmarks. Taking incremental steps on a sure foundation allows Carleton to evaluate potential improvements involving one or multiple buildings with confidence that the decisions are sound. It also helps create goals for sustainable building performance that are achievable over the short, medium and long terms.
The Green Globes Campus approach, which is web-based, allows participants to first baseline their current energy andenvironmental performance, and then continually monitor and improve them on a path to sustainability. Carleton buildings were assessed for energy, water, waste, emissions, effluents and indoor environment. The results were compiled for four different building types: office/academic, research/laboratories, sports/athletics, and residences. Using Green Globes, our team also assessed operating and management practices for the campus as a whole.
In order to establish a baseline and measurement metrics for energy- and water-saving recommendations, we analyzed Carleton’s tility bills. After inspecting metering systems at each building for accuracy, our experts analyzed energy and water data in detail sing the Building Energy Allocation Tool. BEAT provides weather normalized baselines, trends monthly data, identifies excesses nd anomalies, and clearly identifies actual energy use by each end user, improving the accuracy of estimated energy and water avings, as well as retrofit costs.
Process facilitates planningA walk-through audit and interviews with the property managers identified current conditions and potential improvements for pgrades and enhanced operations for each building. Already planned capital projects were also incorporated into the strategic energy and water reduction plans. We compiled data for all 41 buildings into a detailed Portfolio Report with recommended improvements for individual buildings, as well as multiple building upgrades such as lighting retrofits, HVAC controls replacement, and building envelope enhancements.The performance baseline is updated annually. The Green Globes report findings were the basis for Carleton’s campus sustainability plan and have helped the university to demonstrate thought leadership on energy and the environment.
Greening the environment and the budgetOur team identified green capital improvements that, if implemented, will generate an estimated $1.5 million in annual utility cost savings – reducing campus energy consumption by 15 percent and avoiding over 600 tons of greenhouse gas emissions per year. Despite the construction of new buildings and an increase in enrollment, Carleton has already reduced energy costs by over $160,000 in one year by adopting our no-cost/low-cost recommendations.
The Green Globes assessment is also being used in an initiative to engage students directly in Carlton’s sustainability program. Jones Lang LaSalle is an educational partner, providing energy audit training as an extra-curricular activity. Students learn about sustainable building operations, while the university gains further information on campus energy and water reduction through the audits. This student learning initiative has placed the Carleton students as finalists in the Ontario Centres of Excellence Discovery 2011 Connections Competition.
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