Introduction to Building Analytics

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Virgil Fitzgerald
5 years ago
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1 INNOVATION INNOVATION Introduction to Building Analytics

2 INNOVATION INNOVATION Lunch + Analytics = Sleep

3 INNOVATION What? Why? How?

4 Who is Watching? Who verifies when the HVAC system is optimised? Who verifies control strategies work as designed? Who verifies your controls save $ rather than increase $? Who verifies set points and assumptions are still correct? Who optimizes the effectiveness of maintenance? Who has time to do all this?

power to sift through it all We need to find what matters quickly

5 A Solution to information overload Buildings are becoming more complex, with more and more data We don t have time or processing power to sift through it all We need to find what matters quickly and efficiently Analytics can do this for us Turn data into action and savings!

7 It s my data Why do I have to pay to see it? Why is the BMS so inflexible? How do I get control of my data?

8 A Solution to high cost proprietary systems Bring your data into the IT world Gain flexibility, scalability and reduce cost substantially Analytics can do this too! Get control of your data Always choose open protocol systems

9 INNOVATION INNOVATION Building Analytics Case Studies

The building consists of 5 floors and is 7,662 sqm in size. Ecosave was engaged in April 2014 to reduce energy use and improve the NABERS Rating.

10 INNOVATION 1 Eden Park 1.0 to 3.5 NABERS 1 Eden Park is a recently refurbished office providing its tenants with a modern, functional and flexible work space. The building consists of 5 floors and is 7,662 sqm in size. Ecosave was engaged in April 2014 to reduce energy use and improve the NABERS Rating. Energy Use 33% Decreased By Ecosave watch has provided visibility of energy usage and performance information to relevant parties including tenants, staff and contractors Graham Ross, Facilities Manager Annual savings 33% Cost Savings $120,000 kwh savings 670,000

11 INNOVATION Case Study Retail (Stockland) Ecosave has been engaged by Stockland since 2010 to carry out Energy Management services. Ecosave s proactive solutions drive energy efficiency outcomes over an extended period of time; Identifying energy saving opportunities for the facility Provide a building specific action plan to achieve real energy savings Maintain a collaborative approach to implementing solutions with the incumbent mechanical and controls providers Energy Use 24% Decreased By Annual savings 24% Cost savings $186,000 kwh savings Cost Savings $186,000 1,185,000 kwh kwh savings 1,185,000 I wanted to thank you for the great support that your team has been providing to us at Stockland Balgowlah as part of the sub metering review. The results are starting to crystallise with March 2011 was approximately 18% lower than March 2010, even though it was hotter and more humid in March 2011 (the traditional enemy of energy savings). Anthony Girling, FACILITIES MANAGER

12 INNOVATION INNOVATION What is Building Analytics?

BACnet/IP XML Haystack Modbus/IP Sedona SQL OBIX SNMP CSV

13 Step 1 Import Data into Analytics Engine Ecosave Watch Time Series Database Time Series vs Relational Database BACnet/IP XML Haystack Modbus/IP Sedona SQL OBIX SNMP CSV BAS data Facility data Utility data Weather data Production data

14 Step 2 Add Tags Give the data meaning via tags so we know exactly how each piece of data fits into the overall system Project Haystack Dimensions Relationships Location Other meaning and descriptors

Intelligence; Level 1 Rules Automated Fault Detection Level 2 Rules Diagnosis

15 Step 3 Deploy Rules Library We use our extensive library of existing rules and continually develop new rules to convert the data in to Actionable Intelligence; Level 1 Rules Automated Fault Detection Level 2 Rules Diagnosis and Response Level 3 Rules Optimisation Level 4 Rules Continuous Automated Commissioning (CAC)

16 Step 4 Visualizations Choose or define rules to find exactly what matters to you Example: Rule: Simultaneous Heating and Cooling On: ahu (this is the tag the rule will work on) Function: hisperiodintersection([heat, cool]) The Result - An Event 2010-Oct-03 12:00 2 hours RTU-1 The Analytic platform automatically generates views to show the events!

The Result: Know what your buildings are really doing Automatically scans your data to find what matters Automatically generates views on issues detected with automatic email notification Identify

17 The Result: Know what your buildings are really doing Automatically scans your data to find what matters Automatically generates views on issues detected with automatic notification Identify an issue once Ecosave Watch finds it forever Convert your domain knowledge to algorithms your value continues to build Extensive libraries of analytic algorithms assembled to fit your facility type

INNOVATION The fan is commanded on but the Static Pressure Sensor is below 0.25 EXAMPLES The AHU is Cooling and the OA Temp is acceptable for Economize mode but the AHU OA Damper is not open enough.

18 INNOVATION The fan is commanded on but the Static Pressure Sensor is below 0.25 EXAMPLES The AHU is Cooling and the OA Temp is acceptable for Economize mode but the AHU OA Damper is not open enough. The AHU should be using Free-Cooling. Sensor has failed to change over 24 hour period. Because it requires a full day of analysis, this rule always skips today and does not run on weekends. The Terminal Units Heating is commanded on but the difference between the AHU s discharge Temp and the zone temp is not greater than 5 C. The VAV is Requesting Heating greater than 30% of the Occupied Hours

19 INNOVATION Step 5 Savings or business case Quickly get the right information to justify repairs Make sure the predicted savings are achieved ECM ID ECM ID Name Name Description Description Potential Potential Ball in Ball in Annual Annual Court Court Savings Savings ECM_0003 Investigate the Investigate electricity the meters electricity that contribute meters that to contribute the difference to the between difference overnight between weekday overnight demand weekday and demand and ECM_0003 Weekday to Weekday Weekend to Demand Weekend Demand Ecosave overnight weekend overnight demand. weekend demand. Ecosave $103,380 $103,380 ECM_0004 Annual BTU Meter Annual BTU Meter Investigate meters: Investigate 1-1-1D-4, meters: 1-1-1P-2, 1-1-1D-4, 1-1-1Q-6, 1-1-1P-2, 1-1-1Y6, 1-1-1Q-6, 1-2-2A Y6, to determine 1-2-2A-7 to source determine of increase source in of year increase to year in year to year ECM_0004 Ecosave Consumption Consumption Anomalies Anomalies btu consumption. btu consumption. Ecosave $93,864 $93,864 ECM_0024 MUA Heating MUA Setpoint Heating Setpoint MUA Units AHU-1, MUA Units AHU-2, AHU-1, and AHU-57 AHU-2, are and currently AHU-57 are set currently with a fixed set heating with a fixed supply heating air setpoint supply that air setpoint is higher that than is higher than ECM_0024 Liberty Adjustment Adjustment necessary. The necessary. building The is experiencing building is experiencing excess cooling excess at the cooling AHU's. at the AHU's. Liberty $51,296 $51,296 All AHU's are All operating AHU's are are operating a rather constant are a rather duct constant static pressure duct static setpoint pressure throughout setpoint the throughout day. Significant the day. energy Significant energy ECM_0018 ECM_0018 Static Pressure Static Reset Pressure on AHUs Reset savings on AHUs can be savings achieved can be if the achieved static pressure if the static setpoint pressure at the setpoint AHU is at dynamically the AHU is dynamically reset based on reset the based amount on of the air amount Liberty of air Liberty $50,920 $50,920 being requested being by requested the terminal by the equipment terminal (VAV's) equipment (VAV's) ECM_0001 Coincident Heating Coincident and Heating Cooling and Cooling ECM_0001 Investigate AHU-24, Investigate AHU-25, AHU-24, AHU-22, AHU-25, AHU-33, AHU-22, AHU-7B AHU-33, BMS AHU-7B operating BMS details, operating and revise details, as and necessary. revise as necessary. Liberty for 5 AHUs for 5 AHUs Liberty $46,709 $46,709 ECM_0020 The dead band The on dead VAV band setpoints on VAV can setpoints be incrementally can be incrementally relaxed during relaxed the last during couple the hours last couple of each hours day. of This each day. This ECM_0020 End of Day Coasting End of Day Coasting Liberty widening of widening setpoints of will setpoints produce will reduced produce heating reduced and cooling heating loads and cooling throughout loads the throughout year. the year. Liberty $46,474 $46,474 On specified On days, specified the building days, the has building been set has to been 'occupied' set to be during 'occupied' evening during and evening weekend and hours weekend as an attempt hours as to an attempt to ECM_0025 Building Operating Building As Operating counteract As the counteract extremely the cold extremely weather. cold There weather. is no need There to is run no the need entire to run building, the entire including building, MUAs, including AHUs, MUAs, and AHUs, and ECM_0025 Liberty Occupied During Occupied NightDuring the Night chiller plant the chiller in order plant to keep in order the building to keep the at a building reasonable at a temperature reasonable temperature to ensure an to effect ensure morning an effect warmup. morning warmup. Liberty $43,122 $43,122 Unoccupied setpoint Unoccupied adjustment setpoint is adjustment recommended. is recommended. ECM_0011 Bill Dillon advised Bill Dillon that advised he would that like he the would VAV's like to the be set VAV's at 71F to be for set heating 71F and for 74F heating for cooling. and 74F This for cooling. analysis This analysis ECM_0011 VAV Setpoints VAV Adjustments Setpoints Adjustments Liberty reviews the setpoints reviews the of setpoints all VAV's throughout of all VAV's the throughout facility. the facility. Liberty $41,261 $41,261 ECM_0023 The Air System The Optimizer Air System test Optimizer on floors test 11, on 22, floors and 3311, shows 22, and 33 increase shows in an average increase space in average temperature space temperature and and ECM_0023 ASO Setpoint ASO Revisions Setpoint Revisions Liberty cooling. A revision cooling. to A the revision setpoints to the should setpoints be made should before made implementing before implementing on all floors. on all floors. Liberty $24,640 $24,640 ECM_0022 Currently the Currently condensing the water condensing supply water temperature supply temperature setpoint is fixed setpoint at 70F. is fixed At lower at 70F. condensing At lower temperatures, condensing temperatures, Condenser Water Condenser Setpoint Water Setpoint ECM_0022 the gas pressure the gas produced pressure by produced the compressor by the (discharge compressor head) (discharge can be head) lower. can This be reduces lower. This the work reduces required the work by required Liberty by Liberty $17,312 $17,312 Reset Sequencing Reset Sequencing the compressor. the compressor.

Analytics vs Alarms At a very basic level there is a similarity between Analytics and Alarms but there fundamental differences; A typical Alarm might evaluate a single item against a limit at a

20 Analytics vs Alarms At a very basic level there is a similarity between Analytics and Alarms but there fundamental differences; A typical Alarm might evaluate a single item against a limit at a single point in time; eg an Alarm might tell us our building is above a specific kw limit right now Analytics tell us; how many times in the last 6 months did we exceed the electrical demand target how long were each of those periods at what time of day did they occur how much did it cost us how were those occurrences related to weather or equipment operating in the building

21 INNOVATION INNOVATION Analytics Tools You can use and understand

22 What data and what can we do with it?

23 What services can be provided?

24 DVLA s 3 rd Party Import App

25 The Event App User s Dashboard to Review and Investigate Events Simply click on an event notification to get an automatically generated view of relevant data items

26 The Energy App The Essential Energy Reports in One Simple Tool Consumption, demand, runtime, rank and exception reports. Normalize by area, degree days and user defined parameters

27 The KPI App Presentation of Key Performance Metrics You can define virtually any KPI you want to display

28 The Site App Easy Navigation of all of Your Data The Site App automatically creates navigation without any additional programming It interprets tags to automatically create a comprehensive navigation tree Explore any points across any time range

29 Live Dashboards Rotating Dashboard

30 INNOVATION INNOVATION Energy Management Service

31 INNOVATION Energy Management Identified Savings Guarantee (with conditions) Very High ROI Low Risk

32 INNOVATION Its time to generate savings! Quickly and Efficiently

WHITE PAPER. Analytics Software. Find what Matters

WHITE PAPER. Analytics Software. Find what Matters WHITE PAPER Analytics Software Find what Matters We Have The Data: Lets Find What Matters The past decade has seen dramatic advances in automation systems and smart devices. From IP connected systems employing