1 privileged and confidential © 2013 the weidt group to understand how to effectively conserve a...
TRANSCRIPT
1 Privileged and Confidential © 2013 The Weidt Group
To understand how to effectively conserve a resource, you need to first understand how you are using it.
Big Picture Views • Look at annual trends in Water and Energy use and costs across an
organization• Look at monthly consumption trends (Irrigation vs. Non-irrigation
trends)
Look at meter data by type – costs & consumption• Water (Indoor, Mixed Use, Irrigation Only, Pool, Other, Sewer, Storm
water)
Compare resource use and costs for different buildings or spaces• Submeters allow use and costs of specific activities to become
evident• Identify greatest opportunities for conservation based on use and
costs at each campus • See the impact of conservation efforts and upgrades on annual cost
and use
MnSCU B3 Benchmarking54 Campuses (Technical, Community, State University)
2 Privileged and Confidential © 2013 The Weidt Group
Water ConsumptionThe Big Picture
Not all campuses have complete and accurate data.
Generally higher irrigation in 2013
3 Privileged and Confidential © 2013 The Weidt Group
Water Consumption - CostsThe Big Picture
Monthly Costs
Monthly Consumption
4 Privileged and Confidential © 2013 The Weidt Group
The Big Picture – Cost vs UseHigher costs Jun-Oct due to cost of water for campuses with high summer use
5 Privileged and Confidential © 2013 The Weidt Group
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000Annual Water Use Intensity for Complete & Accurate Campuses
20092010201120122013
Water Use Per Student (WUI)gallons/student/year
6 Privileged and Confidential © 2013 The Weidt Group
Case Study CandidatesHigh Water Users
Vermillion• $17,000-$24,000/year in Water Costs
• Typical Monthly Cost $300
• Reverse trend in water use – Lower summer use
• Overall reduction in water use 2009-2011
• Meter recalibration (10-yr difference) in Nov & Dec 2013
• WUI 4,000 – 6,000 gallons/student/year
SW MN State• $100,000 - $124,000 in water
• Typical Monthly Cost $1,000 - $1500
• Peak Monthly Cost $4,000
• Peak summer water use (irrigation)
• Increase in summer use, decrease in other
• WUI 5,000 gallons/student/year
7 Privileged and Confidential © 2013 The Weidt Group
Vermillion Community CollegeTotal Water Use
10-yr meter calibration
8 Privileged and Confidential © 2013 The Weidt Group
Southwest Minnesota State UniversityTotal Water Use
$99,049
$122,432
9 Privileged and Confidential © 2013 The Weidt Group
2005-2006
2006-2007
2007-2008
2008-2009
2009-2010
2010-2011
2011-2012
2012-2013
2013-2014
0
2,00
0
4,00
0
6,00
0
8,00
0
10,0
00
12,0
00
14,0
00
16,0
00
18,0
00
20,0
00
22,0
00
12-Month - Baseline Use
Estimated Outdoor Use
August April December August April December August April December August April December August April0
500
1000
1500
2000
2500
3000
3500
4000
Total kGal (Potable Water)
Average Baseline
“Baseline Use” for the year was established using Nov – Feb average water use
Southwest Minnesota State University
Annual Use – Aug - July
9-Year Annual Use Trends
10 Privileged and Confidential © 2013 The Weidt Group
Southwest Minnesota State UniversityIrrigation Water Use
11 Privileged and Confidential © 2013 The Weidt Group
Southwest Minnesota State UniversityIrrigation Water Use – Alumni Plaza
12 Privileged and Confidential © 2013 The Weidt Group
Southwest Minnesota State UniversityPool Water Use Costs