April 2014

Hoare Lea

Ten Questions an Intelligent Client should be asking in a

New Build or a Refurbishment

April 2014

Phil Summers - Hoare Lea

philsummers@hoarelea.com

Agenda:

• Background

• Q1 – Briefing

• Q2 – Jargon Challenge

• Q3 – Energy Use

• Q4+

• Summary

Introduction

April 2014

Background

1. 2.

3. 4.

5.

April 2014

Q1 – The Brief

SUSTAINABLE

BUILDING:

energy

energy costs

carbon footprint

ethical impact

EPC

DEC

BREEAM

SKA

LEED

lifecycle costs

cradle to grave

maintenance?

note: regulatory/planning minimum?

• Not all equal

• Conflict

• Priorities

• Balance Cost

April 2014

Q2 – Jargon Challenge

Engineers love it!

Few minutes in a HL office:

EPC

DEC

Criterion 3

NCM

BER

TER

SEER

ESEER

LOR

CRI

UGR

kVA

THD

PoE

FCU

BIM

IFC model

• Understand now?

• Presumed

knowledge –

implicit information

April 2014

Q3 – Energy Use

Source: Carbon Trust – Closing the Gap

Source: Carbon Trust – Closing the Gap

Source: Nutec Group

CIBSE TM54: use it as part of design Occupant behaviour, correct model,

controls, commissioning, build

quality, etc

April 2014

Q4+

• What is the impact of requesting X/Y/Z?

• What changes could be easily done to make the building operate more

efficiently?

• Increased maintenance associated with “sustainability”?

• Have you designed this before?

• Do I really need X/Y/Z?

• What will Part L 2014 mean to me?

• Are feed-in tariffs still worth it?

April 2014

Summary

• Sustainability is complex

• Challenge your team to talk in plain English

• Know what you want

• Part L ≠ BREEAM ≠ Actual energy use

• CIBSE TM54 key new tool in estimating actual

energy use