PRSM 2012 Best Practices - (Page 123)

MANAgiNg ENErgy uSAgE wiTh iNTErvAL METEr CALiBrATiON AUTHOR Jeff soplop, director, solutions development COMPANY Phoenix energy technologies chAllenge: Many companies hesitate to utilize meter data to monitor and improve their energy usage. One primary underlying issue is uncalibrated meters, which results in inaccurate, unreliable meter data. Most clients with several meters typically have calibration issues with 50 percent or more of their meters. best PrActice: For any enterprise interested in actively managing energy usage, meter data is the most important data source to begin with. With high-quality, 15-minute interval meter data on electric and other energy sources, companies can compare one site’s performance to the rest of their sites to spot outliers, participate in demand-response programs, optimize startup and shutdown sequences, and to perform measurement and verification on energy projects plus much more. Steps to take to ensure energy meters are providing reliable data include: 1. Checking the calibration on all meters. The easiest way to do this is compare monthly meter data to calendarnormalized billing data and calculate a variance. This should be done for total usage as well as peak demand, if available. 2. Setting an acceptable limit for variance. A typical rule of thumb is that a meter should have a variance of less than five percent from the billed energy usage. 3. Remotely calibrating meters. If meters have multiplier values that can be accessed via the building control system(s) or other interfaces, it is possible to calculate an adjusted multiplier and determine if that fixes the problem before sending a technician on site, which gets very expensive across hundreds or thousands of sites. Meters that don’t respond well to remote calibration fall into one of two categories: either these meters require a technician to fix and/or calibrate the meter or the utility meter is not working correctly. If you suspect the utility meter isn’t working, perform an audit of the site using a clip-on energy meter that you know to be accurate. Collect several months’ worth of data and compare to the billing data. If the utility meter isn’t accurate, follow up with the utility company to recoup costs for overbilling. Repair or replace broken meters that read zero or don’t provide any reading at all. Repeat this process at least every six months. The greatest number of problems are likely to be found the first time meter calibration is checked. Don’t be overwhelmed. Once the first calibration routine is performed, meter data will be more accurate. The benefits of having quality meter data will quickly outweigh the frustration of calibrating so many meters. VeriFicAtion oF eFFiciency And sAVings cAPtured: Using the best practices defined, opportunities for savings across the building portfolio quickly surface. Consider the following results captured for one retail customer. Issue: During a customer engagement, a retailer, who for the purposes of this paper wished to remain anonymous, had a site that was truly exceptional in terms of gas costs. From the day the store opened, it ranked as the highest expensing store for natural gas costs in its peer group. 2012 Best Practices | 123

Table of Contents for the Digital Edition of PRSM 2012 Best Practices

Conducting Multi-Site Paving Improvements to Ensure Continuity
Conducting Multi-Site Paving Improvements to Ensure Continuity
Exterior Rebranding
Exterior Rebranding
Getting the Most Value Out of Roof Management
Getting the Most Value Out of Roof Management
Pervious Concrete Pavement Solves Drainage Challenge
Pervious Concrete Pavement Solves Drainage Challenge
Pervious Pavement: Concrete Solutions to Driveway Stormwater Drainage and Sustainability Problems
Pervious Pavement: Concrete Solutions to Driveway Stormwater Drainage and Sustainability Problems
Applying Bipolar Ionization to Improve Indoor Air Quality and Save Energy
Determining Responsibility for Ceiling Leaks
HVAC Maintenance and Repairs Quote Review
Managing HVAC Energy Usage Without Installing an Energy Management System
Solving HVAC Issues on Landlord Operated Systems
Creating a Standardized Cleaning Chemical Program
Floor Replacement Planning and Execution
Improving Pest Control Monitoring to Maintain Store Cleanliness
Streamlining Store Cleaning Through Internal Benchmarking
LED Conversion Bolsters Ambiance, Bottom Line and Environment.
LED Gas Canopy Lighting Upgrade
Lighting Maintenance
Retrofitting Signage with LED Technology
Performing Basic Troubleshooting to Save Money
Implementing Repair Audits to Ensure Customer Safety
Improving Quality, Cost and Schedule Through Safety Education
Managing Extended Power Outages Through Emergency Response
Managing Risk Through Slip Resistance Testing
Creating Energy Teams to Pursue Opportunities
Formulating Green Solutions
Making Data Centers LEED Compliant
Outfitting Facilities with an Eye on ENERGY STAR Certification
Recycling Cooling Water From Air Conditioning Systems for Toilet and Landscaping Use
Sustainability-How the Facilities Team Can Contribute
Driving Down Waste Expense
Reducing Trash and Recycling Expense for Retail Locations
Transferring Compactor Maintenance to a Service Vendor
Waste Service Efficiency and Compliance
Waste Evaluation and Right Sizing to Reduce Cost
Asset and Service Warranty Tracking and Management: More Fully Realizing the Value of Budget Expenditures
Conducting an Organized Meeting
Proactive Maintenance Scheduling and Delivery
Repair Reductions by Participating in Design and Construction Table
Streamlining the Store Closing Process
Achieving Process Improvement Through Onsite Assessment of KPIs
Forecasting a Maintenance and Repair Budget
How to Calculate Return on Investment
Tracking Finances for Facilities
Centralizing Vendor Training and Management
Creating a Service Vendor Call Center to Save End Users’ Money
Answering a Call Status Challenge with an IVR Solution
Communicating Product Recalls Using a CMMS-Inspired Module
Doing More with Less and Saving Money in the Process
Ensuring the Accuracy of Web-Based Maintenance Requests
Establishing an End to End Procure-to-Pay Process
Leveraging Existing Technologies to Provide Updated Process Improvements
Quality Management of Bundled Periodic Services
Reduced Dashboard Time at Supply Houses
Parking Lot Management
Creating Best-In-Class Snow and Ice Management White Paper
Energy Savings/HVAC Air Filter Bypass
Managing a Retail Lighting Retrofit Project – Bright Ways to Improve Your Lighting and Your Bottom Line!
Managing Energy Usage with Interval Meter Calibration
Navigating the Department of Energy’s Higher Efficiency Regulations
Supplier Insights into Competitive Sourcing White Paper
Testing HVAC System Options to Reduce Costs and Labor
Understanding Retail Facilities Sourcing White Paper
Glossary of Acronyms and Terms

PRSM 2012 Best Practices