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Energy Management Across Multiple Buildings
Cian O’Riordan27 March, 2012Local Authority Energy Management Learning Tour
About PowerTherm Solutions
• 10 years old this month
• 6 engineers
• Energy Services– Energy & Maintenance Surveys– Energy Monitoring, Reporting & Verification– Energy & Maintenance Management– Energy Retrofit Design & Project Management– Specialist Energy Advice
Blue Chip Clients
A strategic approach to energy management
Commitment to a goal; assign responsibility; allocate resources.
Strategic plan - organisation structure and activities;energy monitoring;how energy savings will be identified and implemented.
Baseline energy use, identify energy users, energy drivers, savings
Analysis & monthly reports
Annual report & planning
e3 Energy Management
• UCD, Trinity College, DIT and DCU
• Launched 2004– 30 buildings, €3 million energy cost, – Goal10% reduction in 3 years– SEAI co-funding
• Service Providers - PowerTherm & WYG • Currently
– 90 buildings, €9 million energy cost– Goal 10% saving
General Approach - ARC
RoutinesBaseline studyAnnual energy
review & report
Monthly reports
Building surveys & investigations
BMS operationIdentify & resolve
Project management
ArchitectureSteering CommitteeProject Manager
Procurement Consultant
Account Managers
Energy Champions
M&R System
CultureCommunicate goal
& progressGHG & Cost
savings
Logo
Materials
PresentationsShutdown e-mail
Existing Media
e3 Accumulated Savings (€4.8m)
23,000 tonnes of CO2
Energy Monitoring & Reporting• A structured, multi-year approach is essential (M&V Plan)
• Energy savings cannot be directly measured• Establish a baseline year
• € savings = gas saved 2011 x gas AUP 2011
• Sophisticated approaches available, if required
• Keeping it simple:– Use same system for energy management and DECs – Annual data is essential, monthly data is valuable– Elec – online access – save data OR manual meter readings– Gas – manual meter readings– Oil/LPG – bills and tank opening/closing volumes– Meter point number, readings & date should be saved!
BMS Monitoring Cylon Active Energy
Raising Awareness
• Identify key groups, their impact, allocate resources accordingly
• Decide what you want them to do• Find a proportionate means to secure buy-in and
communicate the message• Develop a logo, turn it into a brand• Use a website as your awareness hub• Get a list of communications media / options• Make a plan...
Group Impact What we want Method
Design & refurb Very high Efficiency and metering integral part of design
Direct / organisational, CPD
BMS Very high Scheduling, setpoints, control strategies
Direct / organisational
Maintenance High Efficiency to be on a par with comfort Direct / contract management, CPD
Security High am - Leave lights offpm - Switch lights off, close windowsFeedback
Contract management
Cleaning Medium Switch lights off Contract management
IT/IS Medium Specific projects – build settings, comms room a/c, data centres
Direct communication / mole
Academic & research staff
Medium Efficient equipment operating practices
Energy champion, various general media
Administrative staff
Low Lights, windows, pc, office equipment Various general media
Students Very low
Lessons Learned for Multisite• Goal is essential
– Specific, measurable, achievable– Public commitment
• Strategy & structure should reflect goal– 5-15% can be achieved from awareness & operation
– For higher level of savings need capital programme– Awareness and operational based savings require
ongoing management
– Smarter controls and new installation require less ongoing management, but have a capital cost
Lessons learned from multi-site• Targeted Approach - Pareto principal
– Identify the 20% of buildings that consume 80% of use– Identify the 20% of people that influence 80% of use
• Structure– Leverage your own organisation – energy champions
– Use established groups and systems– Engage with information services and secure
commitment
One last thing...
...start with a clearly defined goal, policy and strategic plan.
Thank You
Saving MoneyBill management & procurement• Quick wins establish momentum and finance works
• Bill review– Sense check– Small accounts– Estimated readings– Tariff– Maximum Import Capacity / Supply Point Capacity– Power factor correction
• Procurement– After bill review– Save your energy data!
• Bill queries afterwards