Energy Efficiency Guide

EnergyEfficiencyGuidefor Minnesota Collegesand UniversitiesTips to make you even smarterabout saving energy

Building on strong energy knowledgeAlong with technologies and scientific breakthroughs to make college students brighter, collegesand universities are constantly seeking effective ways to reduce expenses. After all, finding savingsallows your school to reinvest in student programs, facility improvements and other initiatives thatbenefit your campus community. Energy efficiencies can be a key contributor to money savings, andwe would like to provide you with ideas to find energy improvements that offer savings todayand in the long term.So how much do energy savings equate to money savings? Since the averagehigher-education building size is around 50,000 sq. ft. and consumes more than 100,000 worth of energy each year, a 10 percent energy goal could yield 10,000in savings per building annually.1Not unlike a little city, a campus can have a variety of buildings — from century old to modern —which may require unique energy efficiency approaches.This guide can help campus energy managers think about energy savings and ways to lower thecosts for energy improvement projects with rebates and incentives.1“Managing Energy Costs in Colleges and Universities.” E-Source 2013.

In this guide:3 Affordable energy-saving ideas3 Campus-wide energy-savings opportunities and rebates3 Renewable energy path to sustainability3 Resources to make the case for energy improvements3 Get an advanced education on energyTo paint the picture where the average educational facilityspends its energy dollars, here is a snapshot of the nationalaverage for all fuel types.Energy efficiencies benefityour campus Reduces energy bills — improves profit marginsRefrigeration2%ComputersCooking4%1% Minimizes equipment maintenance costs Improves environmental impacts Helps you earn energy efficient, green building awardsOther5%Water heating7%Space naging Energy Costs in Colleges and Universities.” E-Source 2013.

Affordable energy-saving ideasWith tight facility budgets, it’s especially important to find low- and no-cost ways that can helplower your energy bill. Here are several ideas to enhance your energy-conservation efforts:3 In residence units, add smart power strips with built-in occupancy sensors to shut offplugged-in devices like printers and monitors when not in use.3 Train staff to turn off lights in rooms and buildings when not in use andinstall occupancy sensors.3 Turn down temperatures of water heaters in buildings that do not have laboratoriesor kitchens.3 Set back the HVAC temperature in winter months during closed hours and areas suchas auditoriums, gymnasiums and cafeterias used only at specific times.3 Reduce temperatures on water fountains rather than keeping them ice cold 24 hours a day.3 Request vending machines with LED lighting.Back to “In this guide:”

University of St. ThomasProject: Building recommissioningEstimated energy savings: 284,991 kWh and 19,810 thermsCampus-wide energy-savings opportunitiesXcel Energy rebate: 2,790Estimated cost savings: 27,000Assessing and prioritizingIdentifying key energy improvement projects may not be as apparent as you think.An energy assessment or engineering study can help put your energy puzzle piecestogether and put you on a faster track to prioritizing — whether equipment is in needof tune-up or repair or simply recalibration or thermostat resetting.We subsidize several energy studies and assessment programs so we can offer themat a low cost to help you kick off your energy projects. Consider these incentivizedassessment approaches: Recommissioning whole-building study to identify and solve mechanical systems. Engineering studies for lighting, heating, cooling or more to help you explore moreefficiency options or build a solid business case for specific projects. Turn-Key assessment to identify energy saving opportunities and offerimplementation guidance.Back to “In this guide:”

Controlling and monitoringNew technologies in efficiency control systems — such as intelligent building monitoring,lighting, cooling, space heating and ventilation systems — save on maintenance efforts andstaff time. Sophisticated efficiency control systems modify sequences, set points and schedulesand also issue live commands — reducing energy waste and alerting equipment issues formany equipment operations. Ask how you can save up-front costs with significant rebates byimplementing these additional energy-saving measures: Efficiency control systems to integrate equipment monitoring and control, centralize buildingsystem operations and improve temperature comforts throughout building. Lighting occupancy sensors to reduce electric waste in unoccupied areas. Space heating and water heating controls to automatically set back warm temperatures inunoccupied areas, weekends, evenings and holidays. HVAC controls to automatically reduce cool temperatures in unoccupied areas before warmsummer months.Back to “In this guide:”

Illuminating on a budgetWhether your campus is large or small, you can benefit from the latest developments in advancedlighting technologies. Replacing inefficient fluorescent or high intensity discharge (HID) lightingwith LEDs, and adding motion sensors or photocells, help campuses improve light quality and saveenergy and costs.LED fixtures have decreased in cost in recent years, making the payback very attractive whileoffering long-term savings.Interior lighting upgrades for classrooms, labs, auditoriums and residential halls can improve qualityof living and learning. And by investing in outdoor LED upgrades, you’ll improve campus safety withbetter lit perimeters and parking lots.With our expansive portfolio of lighting rebates, you can significantly offset your initial cost forretrofits and upgrades of lighting throughout your campus for: Large-room buildings: High-bay LED fixtures and retrofit kits for auditoriums, indoor athleticcenters and large lecture halls. Mid- to small-scale rooms and buildings: LED troffers, LED tube retrofits, down lights andoccupancy sensors for classrooms, common areas, libraries, retail, cafeterias and hallways.Century CollegeProject: Lighting upgrade Outdoor areas: LED area lighting for parking lots, walkways and parks and athletic fields andLED fixtures for parking garages.Estimated energy savings: 212,000 kWhXcel Energy rebate: 7,500Estimated cost savings: 19,400Back to “In this guide:”

Keep warm air insideIn Minnesota, heating systems are among the largest energy users on college campuses.Facility and plant managers are finding creative ways to invest in boiler efficiencies and takeadvantage of new technologies and HVAC control systems to reduce your energy bill asmuch as possible.Properly calibrating boilers and taking advantage of set-back options are small, yet impactfulmeasures. If a large boiler is not ready to be replaced or the payback exceeds a set amount oftime, then take advantage of our rebated maintenance measures to minimize energy waste,reduce maintenance and improve air quality. Ideas to help you save on your heating bill: Upgrade to a high efficiency boiler or water heater. Upgrade to high efficiency furnaces or add electronically commutated motors. Add on auxiliary equipment to your boiler such as stack dampers, outdoor air reset controls,modulator burners, turbulators and 02 trim controls.Winona State University Replace and repair steam traps.Project: Steam trap replacement Add or replace pipe insulation.Estimated energy savings: 69,592 therms Schedule boiler tune ups.Xcel Energy rebate: 2,340Estimated cost savings: 2,900Keep warm air outsideAs year-round use of school buildings has grown, so has the need for efficient air conditioningequipment. HVAC systems can run hard all year long when you consider the need to keep buildingscomfortable. When coupled with proper ventilation, cooling technology and equipment maintenanceis essential for air quality, student comfort and energy savings for the long term. Here areapproaches that campuses are adopting to making cooling buildings more efficient: Install cooling systems such as high-efficiency DX units or chillers to gain the most savings.With rebates and short pay backs, they can offer the return on investment you need in yourenergy-improvement proposals. To attain comfort, commercial cooling systems work extra hard to achieve proper ventilation.Adding energy recovery ventilators (ERVs) so that your units will run more efficiently in recyclingexhaust air streams to precondition the outdoor air. Maintain your equipment to ensure quality air flow: Clean condenser coils, fill refrigerant, set fansettings to “auto” and hire a licensed technician to maintain or calibrate existing economizers.Back to “In this guide:”

Finding savings with energy-commanding computingColleges and universities are seeing a growing demand of energy for computers in nearly everybuilding. Many are adding their own data centers rather than outsourcing, and they all presentunique energy-saving opportunities. Planning for smart computing takes collaboration between ITand facility management to ensure the equipment is performing at peak efficiency. If expandingor adapting existing spaces to make room for more IT centers, it pays to find energy savingapproaches for your IT needs with our resources, rebates, expertise, and even a free engineeringwalk through upon request.Consider these tools to achieve more efficient data centers and data closets: An Xcel Energy-funded Data Center Efficiency study to uncover energy savings. Implement energy-efficiency improvements such as adding waterside economizers, coolingsystems, humidification and other upgrades that become cost effective with a rebate. If expanding or building new data centers, you may be eligible for our free Data Center DesignAssistance services.More computing efficiency opportunitiesFrom classrooms to dorm rooms, save with our rebates when you apply these energy-savingmeasures: Install a virtual desktop infrastructure (VDI), which centralizes the desktop operating systemsand can significantly improve energy efficiencies. Add PC Power Management software as a cost-effective solution to making banks ofcomputers more efficient. Add smart power strips with built-in occupancy sensors that shut off plugged-in devices whenusers are not present.For data centers or server centers, let us help you identify low- and no-cost energy savingopportunities: Xcel Energy-funded Data Center Efficiency Study Data Center rebates for individual improvements Discounted computer equipment purchased through Dell, Lenovo and HP dealers, andsoftware rebates for virtual desktop infrastructure (thin client, zero client) and PC powermanagement software.Back to “In this guide:”