ENERGY AS SERVICES COMPANY ESCO. Jamal E. Alostaz. Projects Engineer Al-Salem Johnson Controls

Transcription

1 ENERGY AS SERVICES COMPANY ESCO Jamal E. Alostaz Projects Engineer Al-Salem Johnson Controls

2 AGENDA About Johnson Controls Introduction to ESCO Case Study: Empire State Building, USA Project Information Project Scope Windows Retrofit Damper Retrofit Chiller Retrofit Case Study: The Corporation Place, Singapore

3 About Johnson Controls Recognized global leader & top corporate citizen FORTUNE 500 Best Corporate Citizens Largest American Companies Largest Global Companies Corporate Supply Chain Diversity 13 Kimberly-Clark Corp. 14 Johnson Controls 65 FedEx 66 Johnson Controls 311 American Electric 312 Johnson Controls IBM Corporation Johnson Controls Johnson & Johnson 2 Alcoa Inc. 3 Johnson Controls 15 Coca-Cola Co. 67 Plains GP Holdings 313 Svenska Handelsbanken 4 Ford Motor Co.

4 About Johnson Controls

5 ESCO Energy as a services company provides a packaged solution for all types of buildings in terms of enhancing the energy performance of the facility. The solution starts by energy metering followed by a detailed energy auditor and commenced by equipment upgrading, retrofitting or replacement. To guarantee the savings promised, a performance agreement legally binds the promised service.

6 Project Information Area : 2.8 M ft 2, Mixed use. Owner and program Manager : Empire state building Co. LLC. Project duration : 2 Years Prime Energy services contractor : Johnson Controls Project Cost : 20 M$ Total guaranteed savings : $2,240,000 Actual savings for the first 3 years : $7,588,964 ($661,726 Extra savings)

7 Project Scope Refurbishing on site approximately 6,500 windows with new components that will substantially reduce summer cooling load and winter heat loss. Adding insulation behind radiators to reduce winter heat loss and summer heat gain. Upgrading tenant and common area lighting with controls and sensors to lower electricity costs and cooling loads. Retrofitting chiller plants to improve efficiency.

8 Project Scope Introducing individualized web-based Power Usage Systems so tenants can manage their power consumption more efficiently. Installing one of the world s largest digitally controlled wireless networks, enabling 24/7 monitoring and control of every system. Valve, pump, louver, fan, and other elements of the building s HVAC system. Integrating the Johnson Controls METASYS Building Management System to monitor and optimize HVAC, lighting, and other building systems.

9 Contribution of ECMs in Total Savings % Savings Radiator insulation & steam traps Windows retrofit DDC cntrols VAV air handling units 16% Tenant daylighting and lighting controls 21% Tenant Energy Management 9% Radiator insulation & steam traps 11% Windows retrofit 8% DDC cntrols 20% Chiller plant retrofit 15%

10 Windows Retrofit: Pre-retrofit double pane windows had U = 0.58 and SHGC = North window had U = and SHGC = through Krypton/ Argon gas. Post-retrofit North windows in exterior have U = and SHGC = Post-retrofit in South, east, west windows in exterior have U = and SHGC = 0.325

11 Solar Heat Gain Constant (SHGC) Test Results

12 Radiator Insulation Retrofit: The pre-retrofit wall + noinsulation U-value was estimated to be The post-retrofit wall + insulation U-value was estimated to be All radiator insulation in the exterior envelope of the building reduce heat loss.

13 Contribution of ECMs in Total Savings Damper Retrofit Reduced overall building outside air intake by replacing pneumatic AHU OA dampers and actuators with new dysfunctional dampers, new DDC actuator controls. Prior to retrofit, samples were taken and the average outside air intake was 0.25 cfm/sf. By being able to modulate and properly operate the AHU OA dampers, the overall outside air intake = 0.15 cfm / sf. This is assuming that there are 7 persons per 1000 SF

14 Contribution of ECMs in Total Savings Demand Controlled Ventilation Reduce outside air intake of all AHU s by 20% (0.15 cfm/sf to 0.12 cfm) using DCV strategy at 800 ppm return air CO2 threshold

15 Contribution of ECMs in Total Savings Chiller Retrofit Attain kw/ton improvement by retrofitting electric chiller tubes. It was estimated that chiller 1 and 6 will attain 0.74 to 0.72 kw/ ton improvement. Chiller 2 and 4 will attain 0.72 to 0.71 kw/ton improvement. Retrofit 4 electric chiller compressors with VFD.

16 Chiller Water Loop improvements

17 Model vs. Actual 2011 Electrical Data

18 Model vs. Actual 2011 Steam Data

19 Case Study: The Corporation Place, Singapore Project Information Area : 76,185m², 7 Stories, Office Building Owner : Ascend Business Space Solutions Project duration : 2 Years Prime Energy Services Contractor :Johnson Controls

20 Case Study: The Corporation Place, Singapore Project Scope Implemented high efficiency centrifugal chillers at full and part load conditions. Low evaporator and condenser shell pressure drop to reduce power consumption of pumps. Incorporated a variable primary flow (VPF) system to lower chilled water pump energy consumption and reduce carbon footprint.

21 Case Study: The Corporation Place, Singapore Project Scope Use of high efficiency motor, pumps and cooling towers with variable speed drives control for minimized energy consumption Incorporated central plant optimization (CPO) program to monitor and control chiller parts for optimum plant efficiency Implemented (Condenser Auto Tube Cleaning System) for regular maintenance of condenser tubes to maximize heat transfer and reduce energy consumption in chillers

22 Case Study: The Corporation Place, Singapore Savings 53% improvement in system efficiency from 1.41 KW/RT to 0.59 KW/RT at peak cooling load. 58% reduction in energy consumption, from 6.00 million KWh/Yr to 2.8 million KWh/Yr. Total savings of 3.2 Million KWh/Yr - $527,712.0/Yr

23 THANK YOU Website: YORKKSA Customer Care Center: