Overview NU Conservation Programs & Other Interesting Opportunities: Industrial process sub-metering. Dave McIntosh Justin Marmaras

Transcription

1 Overview NU Conservation Programs & Other Interesting Opportunities: Industrial process sub-metering Dave McIntosh Justin Marmaras

2 AIA Quality Assurance The Building Commissioning Association is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this program will be reported to AIA/CES for AIA members. Certificates of the Completion for both AIA members and non-aia members are available upon request. This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. 2

3 Session Learning Objectives Overview of NU Conservation Programs and Other Interesting Opportunities At the end of this session participants will be able to: 1. Discuss differences among utility conservation programs in different regulatory environments 2. Provide guidance regarding certain power consumption equipment and base load reduction 3. Use an industrial real-world example in planning commissioning activities 4. Work with owners and stakeholders citing specific scenarios and benefits of commissioning for energy conservation 3

4 Presentation Learning Objectives At the end of this presentation participants will be able to: Understand the impact sub-metering can have on a facilities energy consumption when properly managed Learn correlation between occupancy, HVAC operation, and opportunities to reduce energy Understand program implementation strategies Understand how to analyze energy sub-metering data to help impact decision making within a facility See the effects of human behavior and energy consumption through energy meter data Determine if monitoring of a facility will provide benefits 4

5 Welcome and Overview Our 22 nd National Conference Conservation in Connecticut and the Northeast Incentives and Savings Calculations Case Studies: Savings and Strategies New Considerations for Results 5

6 Energize Connecticut is Delivering Results State s new branding initiative helping customers save money through clean, affordable energy measures A Partnership Energy Efficiency Fund Clean Energy Finance and Investment Authority Local electric and gas utilities Program Funding: Electric customers pay 3 mills per kilowatthour, up to a maximum of 6 mills Natural gas programs are funded through gas utility bills, are approved by the Public Utilities Regulatory Authority and appear as a charge on the bill Budgets CL&P C&I $ 66.3 M UI C&I $ 15.2 M YGS $ 5.4 M CNG $ 3.7 M SCG $ 2.6 M 6

7 Energize Connecticut Program Highlights Overview: New Construction & Equipment Existing Buildings Small business energy advantage Business & Energy Sustainability Retro-Commissioning PRIME Business Sustainability Challenge Financing, C-PACE 7

8 New Construction & New Equipment Key Points: The majority of savings and incentives are derived during the schematic design phase Energy Efficient Lighting Lighting Controls HVAC Equipment Incentives cover up to: 95% of the incremental cost of installing measures in new construction, and 75% of the incremental cost for equipment replacement projects Building Envelope Gas Boilers Refrigeration VFDs Process Equipment New Construction Major Renovation Equipment Replacement 8

9 Case Study: Two Roads Brewing Company Contacting the utility during the schematic design phase enabled the customer to maximize energy savings and incentive dollars. State of the art brew house 1911 brick building Stratford, CT EE measures: Air compressors High-efficiency refrigeration Refrigerated air dryer High-efficiency high-pressure steam boiler Radiant heating system Incentive: $241,884 Annual Savings: Dollars: $185,548 Energy: 182,026 kwh and 124,627 ccf 9

10 Prescriptive Rebates Expedite the Process Incentives are readily available through rebates with on-line forms for individual pieces of equipment. Electrical Equipment: HVAC Unitary Equipment Heat pumps Gas Equipment: Condensing boilers Non-condensing boilers Condensing furnaces Condensing unit heaters Infrared heaters Water heaters Food service rebates 10

11 Existing Building Opportunities Incentives to replace functioning equipment with more energy-efficient options are readily available through the utility. Incentives cover a high percentage of installed costs: Energy efficient lighting Lighting controls EMS/ Programmable Thermostats 35 Percent Common lighting 40 Percent High-end lighting 40 Percent EMS Process Equipment VFDs HVAC 40 Percent Custom technologies 50 Percent Comprehensive projects Refrigeration Controls Gas Measures 11

12 Case Study: Meriden Property Management, LLC Contacting the utility before equipment replacement enabled the customer to maximize energy savings and incentive dollars. Property Management Co. EE measures: Retrofitted existing energy management system (EMS) Added control strategies Installed new perimeter radiation control valves and integrated them into EMS Incentive: $39,368 Annual Savings: Dollars: $15,700 Energy: 42,600 kwh and 5,070 ccf Payback: 4.1 Years Total cost: $104,198 12

13 Turnkey Small Business Energy Advantages Customized for small businesses to cost-effectively implement EE measures and create a positive cash flow, the program has assisted approximately 7,500 customers since its inception in Key Features: Turnkey energy-saving program Pay nothing upfront Existing business, municipal, and government customers Average 12-month peak demand between 10 kw and 200 kw All possible energy efficiency measures On-bill, 0% financing to qualifying customers 13

14 Business & Energy Sustainability These programs are for high-volume energy consumers with existing EE measures in place ready to progress to increasingly sustainable practices. Builds upon existing assets Identifies no-cost, low-cost non-capital EE measures Provides a platform for business owners and operators to identify and remove wastes (e.g. energy, processes) Maximizes operational strategies with existing capital equipment and people Develops management best practices 14

15 Greening with Retro Commissioning These programs are important for all business owners. Extensive opportunities exist tto achieve EE savings by adjusting existing capital assets operating parameters for greater comfort, efficiency and energy savings. Key Features: NU s program in operation since 2004 Results Optimize facility operations Produces a minimal waste stream Provides quality control and technical assistance Provides a persistence strategy Educates equipment operators Capital equipment not required Requirements: Naylor Elementary School, Hartford, CT 100,000 square feet minimum Fully functioning Direct Digital Control Energy Management System for trending & reporting Energy Star 15

16 Case Study: Greenwich Hospital Working with the utility on retro commissioning can deliver significant, low-cost results in an expedited timeframe. Private Hospital 520,000 square foot facility Built in 1998 EE measures: Reset chilled water Reset VAV boxes Hot water valve reset Updated air intakes for proper economization Installed VAV box to remove restricted air flow Optimized vacuum pumps HVAC occupancy and lighting controls Kitchen exhaust optimization Incentive: $113,238 Annual Savings: Dollars: $303,960 Energy: 1,788,060 kwh Payback: < 6 months Total cost: $229,476 16

17 Process Re-engineering for Increased Manufacturing Efficiency (PRIME) PRIME programs improve workplace organization, reduce waste and eliminate operating inefficiencies. PRIME is known for freeing up line capacity to produce more product for the same amount of energy. Key Features: Lean manufacturing techniques and Kaizen process Focus on industrial manufacturing processes Benefits include: Increase productivity Reduce per unit energy usage Reduces waste of material, time and transportation Reduces inventory requirements Leverages utility approved consultants as a free service 17

18 Business Sustainability at Work This is holistic approach consists of training, education, tools and resources to assist businesses in developing and sustaining strategic energy management practices. Key Features: Develops sustainability plans to manage day-to-day business operations for longterm value and effectiveness Prompts behavioral and cultural changes Reduces waste streams Improves operational efficiencies Increases market acceptance of the triple bottom line: Social Economic Environmental 18

19 Remove Delays With Financing The conservation programs are supported with low-cost financing to remove the barrier of capital cash flow issues. Type Min Max Rate Term Max SBEA/ Muni Pymt Source $500 $100,000 0% 4 yrs On-Bill Utility C&I $2,000 $1 Million (1 st $100,000 w/ subsidy) PURA Loan (>50 kw savings) $1 Million 2.99% or 4.99% 1% below rate/no more than prime 5 yrs 3 rd Party 3 rd Party 10 yrs 3 rd Party 3 rd Party 19

20 Do It All At Once With C-PACE A State of Connecticut-sponsored program, C-PACE provides inexpensive financing for energy projects which improve a property s value through higher energy efficiency and reduced operating costs. Commercial Property Assessed Clean Energy Enables commercial, industrial, and multi-family property owners to: Access financing for qualified energy upgrades Repay through a benefit assessment on their property tax Utilize gas boiler fast-track program Administered by Clean Energy Finance and Investment Authority (CEFIA) Online: 20

21 Let s Investigate the Industrial Sector Energy Consumption, Technology and Profiles Facility Benchmarking Measurement and Verification Demonstration A Reveal on Real-Time Conditions 21

22 The Energy Consumption Questions Do we truly know where energy is consumed? Most people have an idea of what equipment they have on-site: But do they know how and when it operates? What about during the evening and holidays? What can we learn? Dashboards for manufacturing operations: Real-time data Utilization information Trend histories and your profile SchoolPhysics.co.uk 22

23 New Technology Provides Answers Wireless current transformers provide detailed, low-cost data collection enabling a better understanding of building operations and real-time energy use. Flexible data collection enables trend development Self-powered wireless transformers are cutting-edge technology Wireless technology integrates with webenabled dashboards 23

24 What is Your Profile? Technology advancements are producing significant energy savings and efficiencies across thousands of commercial and manufacturing processes. Scenario: a manufacturing line of equipment typical of many in operation today. Where and when is the power consumption taking place? What are the opportunities to save energy? How do we find them? 24

25 Developing Facility Benchmarks A Key Step Benchmarks open a dialogue with the customer to visualize current-state energy and equipment and adjust accordingly to optimize operating parameters. Customer is notified about equipment s constant load Conversation with equipment operators and management to determine what can be done to reduce energy/demand Ongoing M&V is implemented in order to sustain savings 25

26 Measurement and Verification Shows the Results Trending demonstrates the real-time value of new technology and equipment modifications and becomes an energy management tool to sustain results. Previous Compressor Operation New Compressor Operation Switched to a smaller compressor better sized for actual operating loads 26

27 Real-Time Conditions Are Revealing When monitoring energy profiles we discover and investigate anomalies, which often reveal energy savings opportunities and equipment maintenance cautions. Documentation revealed trends Investigation identified PM issue Avoided an equipment failure and production interruption Costly Air Compressor Repairs or Loss of Equipment Was Avoided 27

28 A Reveal in C&I Facilities: Trends and Conditions Building operations are monitored through multiple profiles to determine baseline operating parameters and adjustments to achieve optimal performance. Data points: Occupancy Indoor Air Outdoor Air HVAC loads 28

29 A Reveal in C&I Facilities: What We Learn Sensor data creates activity profile Sensor data identifies temperature setback opportunity HVAC system use out of synch with building activity; occupancy and HVAC controls fine-tuned Figure shows Occupancy, Indoor/Outdoor Air Temperature, HVAC Loads 29

30 A Closer Look: Revealing A Common Issue Often we find building systems and process equipment running unnecessarily. Each instance has a correlating energy and operational savings opportunity. Building equipment running when there is no occupancy Changes made to the building HVAC schedules are observed in future trends 30

31 Dashboards: Inspire Action Dashboards provide a compelling look at facility consumption profiles and equipment utilization. Whether for a complete system or subset, a dashboard is available and effective for monitoring and identifying future opportunities. Savings are shown through the dashboard and can be quantified to determine actual savings Issues can still be identified, this excess consumption will need to be analyzed to determine root cause Figure shows Baseline Energy Usage Compared with Current Usage 31

32 David W. McIntosh Team Lead Strategic Energy Management Justin Marmaras Energy Engineer Manufacturing Sector Company Name Website Address