1. Trang chủ
  2. » Ngoại Ngữ

Norman Smith presentation

27 208 0

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Định dạng
Số trang 27
Dung lượng 6,82 MB

Các công cụ chuyển đổi và chỉnh sửa cho tài liệu này

Nội dung

Sustainability in the built environment Promoting energy efficient buildings and minimising their harm on our environment  Improving economic efficiency, while protecting and rest

Trang 1

“Sustainability – Without the Stars”

Trang 2

“Sustainability Without The Stars”

New Zealand Rocky Mountain Institute

Trang 3

What does that mean?

Abandon rating

schemes….

…or collectivist action

Trang 4

Sustainability - the “jargoniest”

word of 2010 - Advertising Age

 Even ahead of

monetize, choiceful,

and the new normal

 A good concept gone

bad by misuse - and -

overuse

Trang 5

Sustainability in the built environment

 Promoting energy efficient

buildings and minimising their

harm on our environment

 Improving economic efficiency,

while protecting and restoring

ecological systems, and

enhancing the well-being of

people in general

“Doing well by doing good”

Trang 6

The Big, Big Picture

 Buildings account for 40%of primary energy

in developed countries … and rising

 The International Energy Agency (IEA)

estimates that current trends in energy

demand for buildings will stimulate half of energy supply investments to 2030

 The World Business Council for Sustainable Development identified buildings as one of the five main users of energy where

“megatrends” are needed to transform

energy efficiency

Trang 7

2011 Top trends in the US

US Earth Advantage Institute:

 Energy labelling for homes and office buildings

 More accurate energy rating systems for homes and office spaces

 Buildings information modelling software

 Advances in building modelling for energy and embedded energy

 Buy-in to green buildings by the financial community, new load products

 Carbon calculations to document, measure, and reduce greenhouse gas creation

 Net zero buildings which generates more energy than they use

 On-site renewable energy sources such as wind, solar or geo-exchange systems

Trang 8

Messages from your

European colleagues

 Reducing energy consumption and

eliminating wastage are among the main

goals of the European Union

 The Energy Performance of Buildings

Directive imposes energy performance

certificates (EPCs) for all buildings in

Europe.

“EPCs won’t realise their full potential until

valuers actually factor them into their

valuations and the grade it gives the building”

Roger Messenger Chairman of TEGoVA –

The European Group of Valuers’

Associations January 2010

'Sustainability is no longer a buzzword: it

is now an everyday part of property

decision making'

Jo Stocks: Chief Executive - Watts Group UK

Trang 9

Where Goest

Australia ……

 Very active in reducing Greenhouse Emissions

in buildings which account for 25-30% of GHG

 2010 - stringent energy efficiency requirements

in building code.

 Gillard Government working on tax breaks for energy efficient buildings

 Mandatory disclose of energy efficiency in

buildings – Commercial Buildings Disclosure

Trang 10

Commercial Buildings Disclosure

 National programme to improve the energy

efficiency of Australia’s large office buildings

 Since November sellers or lessors of office space

(2,000 sq m +) required to provide an up-to-date

energy efficiency rating

 Building Energy Efficiency Certificate must include:

1. NABERS Energy star rating [*]

2. an assessment of tenancy lighting and

3. general energy efficiency guidance

 Repeat - This is mandatory

[*] National Australian Built Environment Rating

System Performance-based rating system for

existing buildings Actual versus design

Energy – water- waste-indoor environment

Given the increasing linkages between our two

economies – not to mentioned our professed desire to catch up with Australia - is it reasonable

to assume similar policies will be heading across the

Tasman?

Trang 11

But wait there’s more

 Sets a minimum ongoing operational building energy performance

standards measured by NABERS

[*] A series of provisions that encourage/require the parties to reduce the environmental impact of the premises

Encourages sustainable practices by landlord and the tenant and remove

disincentives End result;

(a) a comfortable, productive and healthy indoor environment

(b) reduced energy use and reduced production of Greenhouse Gases

(c) reduced use of potable water and the use of recycled water where appropriate

(d) effective diversion of construction, demolition, and land-clearing waste from landfill and incineration disposal, and recycling of tenant waste streams;

Trang 12

Market transformation is under way

Property investment analyst IPD in Australia has launched its green property index

 Measures investment returns for buildings which have environmental performance ratings

 Focus on investment rather than operational considerations

 Benchmark: compares environmentally-rated buildings again non-rated buildings

IPD presentation to the Green Cities Conference, February 2011

 Evidence Green Star and NABERS-rated buildings outperform non-rated buildings on

a financial basis by a significant margin, especially at the upper end of ratings

Trang 13

Meanwhile, in our own back yard

 NZ lagging behind

 Work of Professor Sandy Bond-Lincoln Un.

 Cessation of ‘Govt3’

Trang 14

It’s the (New Zealand)

economy stupid!

“Our” experience in our shared patch:

 Commercial property sector in recession - tenants in the driving seat

 Vacancy rates rising, rent income is reducing

 Property valuations being written down, tightened banks lending

 Big pressure on cost reduction – replacing Govt3 in Government

 Increasing energy costs, increasing energy consumption

 Restricted capital expenditure even for essential work

 Upgrades focussed on retaining/attract new tenants

 Funding for upgrade work to reduces energy consumption is scarce

 Proactive management of tenants by facilities management

companies 1 year before lease renewal

 Tenants starting to make property decisions based on sustainability, energy use and internal environment

 The squeeze is on – more office workers per square metre

Trang 15

What we know that

you may not

 Outstanding opportunities to reduce energy use in buildings

 Many tenants and property owners lack knowledge about energy efficiency and effective running of plant in commercial buildings

 Funding available from EECA not always understood

 Energy use “easily” reduced by 10-15% by tuning existing controls

 Savings with a payback of less than 3 years can reduce energy

Trang 16

Bounded rationality, Cognitive

dissonance, Pareto optimality

 “I haven’t got the time to understand everything I need to know about how to save energy

 “I’ve got lots of other pressing tasks and don’t have the resources to deliver the optimal solutions

 “I might make things better off for others but not

necessarily for myself, or vice versa Split incentives.

 “There is a risk of being too ambitious which could

backfire, so I’ll opt for a satisfactory solution rather than the optimal one [Satisficing]

 If I bring in someone else and they find major savings I could be criticized for not finding them myself

Satisficing a handy blended word combining satisfy with suffice a

strategy that seeks to meet criteria for adequacy.

Trang 17

But it can all come together

Reserve Bank :

Starting from 30% below Energy Use Index

benchmark

 Total building energy use reduced 22%

 Comfort conditions = to best ever recorded

 Cooling Energy (central plant) reduced 54%

 Gas energy (whole-building) reduced 35%

 HVAC Auxiliary energy reduced 11%

 Electric energy (whole-building) reduced 6%

 Carbon emissions reduced 13%

But Wait - there’s more: Project to deliver as

many savings again under way

Energy Management is a process not an

event, and sometimes a counter-intuitive one

at that

Trang 18

Measuring sustainability in

commercial buildings

Green Star in New Zealand

 NZ Green Building Council

established in July 2005

 61 Green Star rated

buildings in NZ - new buildings

 50 for office buildings, 5 for

education facilities, 5 for

“fit-outs, 1 industrial site

 Eight separate environmental

impact categories

Assessment Criteria

Trang 19

Design versus Reality

 May not be as green as they seem

 One third may not reach their potential

 Certification based on design

 Issues being addressed

Trang 20

Measuring sustainability in

commercial buildings

NABERS coming to New Zealand

 Announced but details awaited

 Initiated by EECA, delivered by NZGBC

 Adapted for NZ conditions

 Name not yet known

A Voluntary scheme in New Zealand

National Australian Built Environment Rating System based rating system for existing buildings Actual performance versus design Energy – water- waste-indoor environment, GHG

Trang 21

Performance-Emissions Trading

Scheme

 New Zealand will be running an Emissions

Trading Scheme (ETS)

 Puts a price on greenhouse gases; incentive to reduce emissions and encourage tree planting

 It will increase the cost of energy

 ‘Cheap’ gas reservoirs depleting

 Currently, NZ electricity costs are low in

comparison to rest of the world…

Trang 22

New Zealand Building Stock

Trang 23

Property Institute-

Professional Pathways

Trang 24

Adding Energy Efficiency into the

Knowledge Area Core Property

Knowledge Field Property Management

Title Provide clients with advice on property

economics

Purpose Are able to identify economic factors

affecting property; provide advice on external factors influencing property.

Understand the value to property owners of investing in energy efficiency and the

resulting increase in their return on investment

Trang 25

Thank you Questions –Comments-Discussion

Trang 26

Split Incentives

Landlord aim is to maximise return on investment:

 minimise landlord expenses

 where possible, pass costs to tenants

Tenant goal to maximise staff comfort, satisfaction,

minimise OPEX, rent and energy consumption

 Landlord typically passes on all energy and maintenance costs to tenant

 No landlord incentive to install higher quality or energy efficient plant

Trang 27

The ECO Conundrum

15 - 5 - 500 - 5000

• In a typical commercial building, the base build energy costs can be around $15/m2

• Savings of 33% or $5/m2 are typically achievable

• Depending on the building use and location, tenants could be paying $500/m2 in rent and $5,000/m2 in staff costs

Q: Even though saving energy is cost effective … why take the risk of alienating tenants/employees?

A: Because the non-energy benefits are greater.

Ngày đăng: 05/12/2016, 21:19

TỪ KHÓA LIÊN QUAN

🧩 Sản phẩm bạn có thể quan tâm

w