1. Energy Efficient Design
Presented by: Ken Bruton BE MEngSc MIEI
Presented by: Ken Bruton BE MEngSc MIEI
16/01/2019

2. My Background 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

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

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

5. EED Methodology Concept
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

6. EED Methodology Project Organisational Structure

7. EED Key Individuals Energy Sponsor
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

8. EED Key Individuals Energy Co-ordinator
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

9. EED Methodology 3 Step Approach
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

10. EED Methodology Step 1 – Project Energy Baseline
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

11. EED Methodology Step 2 – Analyse
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

12. EED Methodology Step 3 – Agree & Implement
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

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 Phase Typical 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 Phase Typical EED Actions
Improve the efficiency of each system component
Reduce energy waste

16. Tendering and Construction Phase Typical 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 Phase Typical 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