Energy Efficient Design

1. Energy Efficient Design Energy Efficient Design Presented by: Ken Bruton BE MEngSc MIEI Presented by: Ken Bruton BE MEngSc MIEI

2. RPS Energy Team in Cork SEI SME Advisor Provide Energy consultancy support to large industry Implement IS:393 Energy Management Systems Six Sigma Green Belt Sit on the SEI working group on Energy Efficient Design (EED) Currently writing an EED guideline methodology document for large industry My Background

3. Tight budgets and schedules Extra design time required More emphasis placed on reducing capital costs rather than reducing subsequent operational costs Possible legal ramifications Why is EED not utilised extensively?

4. Savings potential far higher at design stage Lower project capital & operating Costs Why undertake EED?

5. Work from the Energy service out Challenge design standards Select integrated efficient system choices Optimise Control strategies to minimise energy use Maximise component efficiencies Maintain system efficiently through commissioning and operation Validate savings through efficient M&T EED MethodologyConcept

6. EED MethodologyProject Organisational Structure

7. Imperative to the success of the EED process Must have senior management commitment to remove barriers to success Ensures EED methodology followed for the duration of the project by all project participants EED Key IndividualsEnergy Sponsor

8. Critical to EED process Independent Reviewer outside of project constraints Must be knowledgeable of all engineering disciplines Challenges energy service requirements Lifetime costs each opportunity for energy efficiency improvement Identifies “new” technologies which could be utilised in place of standard solutions Must be involved from initial design stages for most effect but can carry out an EED review at any project stage using the 3-step approach EED Key Individuals Energy Co-ordinator

9. Calculate Energy Baseline Calculate the project Energy Baseline at the earliest design phase possible in order to focus EED resources on significant energy using areas Analyse Challenge the Proposed Design and develop a prioritised Energy Savings Register of Opportunities based on the significant energy using areas Agree & Implement Agree which items on the Energy Savings Register should be carried forward into the next phase of the design process for implementation EED Methodology3 Step Approach

10. Formulate an energy baseline of the project based on the information available at the earliest design phase possible This aids in the identification of the significant energy using areas of the project Focus EED efforts on these areas for most effect EED MethodologyStep 1 – Project Energy Baseline

11. Challenge energy service requirements and system integration of these significant energy using areas Compile a list of energy saving opportunities Calculate the before and after EED operational costs associated with these opportunities Prioritise opportunities for progression based on economic, environmental or company specific requirements EED MethodologyStep 2 – Analyse

12. Project Team should agree on the energy saving opportunities progressed to the next stage of design If barriers to this agreement are met within the project team, the energy co-ordinator should have access to senior management via the investor energy sponsor to progress relevant items Opportunities progressed from one design stage to the next should require a “change control” to remove them from the project scope. Energy Efficient User Requirement Specification should be furnished to prospective suppliers EED MethodologyStep 3 – Agree & Implement

13. Supplier URS Extremely important document as it instructs project suppliers/contractors in the EED requirements of the project This document should specify standards used by design team It should also specify the minimum requirements of the project in terms of; Rating of motors to be utilised in building services Minimum lighting efficiency in terms of lumens/watt Temperature/humidity requirements of a space Minimum Boiler Efficiency Control strategy incorporated etc.

14. Concept/Basic Design PhaseTypical EED Actions Challenge Energy Service Requirements Consider project holistically Calculate operational costs over lifecycle of project Investigate opportunities for heat recovery and system integration Tailor control strategy to end user requirements Facilitate the setback of systems in line with production patterns

15. Detail Design PhaseTypical EED Actions Improve the efficiency of each system component Reduce energy waste

16. Tendering and Construction PhaseTypical EED Actions EED Project team must be vigilant of; Value engineering energy efficiency improvements off the project Product substitutions due to cost/lead time Reducing Costs/Staying on Schedule Energy Co-ordinator review imperative at each stage of project

17. Operational PhaseTypical EED Actions Utilise effective M&T as a means to validate and maintain project performance Ensure system users are “aware” of performance parameters

18. Engineering Tools for EED Needs Analysis Six Sigma Pinch Analysis Financial Analysis Tools Value Engineering etc.

19. Key Points Achieving client “buy in” can prove difficult Energy Champion support for Energy Co-ordinator key to success of EED project SEI Working group on EED to publish guideline document early 2009

20. Thank You Ken Bruton BE MEngSc MIEI Ken.Bruton@rpsgroup.com