LEVEL 4 ENERGY ASSESSOR TRAINING

1. LEVEL 4 ENERGY ASSESSOR TRAINING 10.0 - BUILDING ENERGY MANAGEMENT SYSTEMS or BEMS

2. LEVEL 4 ENERGY ASSESSOR TRAINING • Controls? – Why do we need them: • Legislation ADL2A – SECTION 1 paragraph 40 • Systems should be provided with appropriate controls to enable the achievement of reasonable standard of energy efficiency in use, and • Systems should be sub-divided into separate control zones to correspond to each area of the building which as a different solar exposure, pattern, type of use, and • Each separate control zone should be capable of independent timing, temperature control on each service like heating, ventilation, domestic hot water and air conditioning, and • The provision of service should respond to the requirements of the space it serves. If both heating and cooling are provided then they should be controlled so as not to operate simultaneously, and • Central plant should only operate as and when each the zone systems require it. The default condition should be OFF.

3. History of Conventional Controls and BEMS: What was the first control: What came next: What came next: What came next: What came next: What came next: What came next: What came next: What came next: What came next: What came next: What came next : What came next: What came next : What came next : LEVEL 4 ENERGY ASSESSOR TRAINING • The Human hand via a switch/ starter • The single thermostat • The dual thermostat • The single time switch • Control valves, two and three port • Weather Compensation controller • Programmable Weather Compensation controller with clock • Zone valves, two and three port • Thermostatic Radiator Valves • Programmable day & week programmer • Multi-boiler sequencer • JEL optimiser with optimum ‘on & ‘off’ • JEL EMS which included the above • JEL EMS with day economy and boiler isolation via valves • Hollec BEMS which housed everything above plus metering • Hollec is now TREND

4. LEVEL 4 ENERGY ASSESSOR TRAINING Optimum Stop/ Start Controller Conventional controls Boiler sequence Control Unit Time Control

5. LEVEL 4 ENERGY ASSESSOR TRAINING Conventional controls

6. LEVEL 4 ENERGY ASSESSOR TRAINING Conventional controls

7. What is ‘Building Energy Management System’: The means to accept analogue and digital input data from external devices and convert the data into signals to bring on plant and equipment to provide an adequate internal environment with the least amount of energy to sustain it. A Building Energy Management system is a new state of the art electronic device that can accept data, record, log, convert and transmit signals to individual devices to ask them to either come ‘on’ or ‘off’, to provide an adequate internal environment. Also to monitor the environment and provide visualisation of the working and alarm of non-working profiles of the building and its services. It can collect fuel data and provide accurate information that can be used for billing and exception reporting. LEVEL 4 ENERGY ASSESSOR TRAINING

8. Building Energy Management System Puzzle: LEVEL 4 ENERGY ASSESSOR TRAINING What is it?

9. PID maths logic On On LEVEL 4 ENERGY ASSESSOR TRAINING CONTROLLER INPUTS OUTPUTS The BEMS IQ Controller Temperature Pressure Humidity Analogue Analogue Modulated Run, Fault, Trip, from plant Digital Digital On/Off Pulse Fuel meters

10. LEVEL 4 ENERGY ASSESSOR TRAINING Outstations Main plant controllers Area Network Terminal unit controllers Via Internet Key pad in Buildings Other controllers Supervisors Simple building BEMS network Palm Unit

11. Logs Alarms PID Times maths logic Outputs Inputs Analogue Temperature Pressure Humidity Digital Run / fault Time control for boilers, chillers etc. Modulating or on/off valves Pulsed Meters LEVEL 4 ENERGY ASSESSOR TRAINING The Current Controller • Alarm Management via e-mail & SMS

12. LEVEL 4 ENERGY ASSESSOR TRAINING Dynamic Mimics Run / fault Alarms

13. LEVEL 4 ENERGY ASSESSOR TRAINING

14. The Future Architecture LEVEL 4 ENERGY ASSESSOR TRAINING

15. System Architecture: LEVEL 4 ENERGY ASSESSOR TRAINING

16. aM&T – Automatic Monitoring and Targeting LEVEL 4 ENERGY ASSESSOR TRAINING ‘Control’ Operational level ‘Alert’ operational level Principles of Monitoring and Targeting- static and automatic

17. Why do we need to do It? Kyoto Agreement The Kyoto Agreement commits Britain to keep annual greenhouse emissions during the period 2008 to 2012 to 12% below 1990 levels. EU Energy Performance of Buildings Directive 2003 Article 7 requires the production of:– Energy Performance Certificates (EPCs or Asset Ratings) Display Energy Certificates (DEC) Required for buildings with a total useful area of 1000sq.m occupied bypublic authorities, intuitions providing public services to a large number of persons and therefore frequently visited by these persons Building Regulation Part ADL2A & ADL2B LEVEL 4 ENERGY ASSESSOR TRAINING

18. What will It provide: Can Provide half hourly data for each service utility Can provide Energy monitoring management of our buildings and performance of each control and plant element. Can provide Automatic daily profiling of the building’s energy requirements. Contributes to the removal of ‘estimated’ bills surrounding conventional billing service through more accurate control of the environment and plant. Offers our business reliable and accurate visualisation of control and plant performance for consumed energy Provides a means to monitor our carbon emissions against the European Directive and Government targets Gives us a visualisation on how our building is being controlled and whether it is in acceptable control limits. LEVEL 4 ENERGY ASSESSOR TRAINING

19. Benefits: Accurate and reliable bills based on actual meter readings Reduceelectricity, gas and water usage and costs Greater purchasing flexibility through accurate procurement forecasting Pro-active energy management, based on real time data Compliance with legislation on energy consumption management Provides a vehicle for reducing and managing CO² emissions via better analysis of accurate and timely data Provides the means to maintain a sustainable environment for our building users through better control of its services and reduced carbon emissions LEVEL 4 ENERGY ASSESSOR TRAINING

20. LEVEL 4 ENERGY ASSESSOR TRAINING ANY QUESTIONS OR FEEDBACK