Achieving Climate Neutrality

Through Energy Conservation and

Renewable Energy

Larry Eisenberg, Executive DirectorFacilities Planning and Development

13 Pounds of CO2 Per Year

44,000 pounds of CO2 Per Year

7.7 Acres of Trees Per Person

440 Trees Per Acre

5,720 pounds CO2 per acre

305,350,886 People US Census

2.43 Billion Acres of Land in US

Forest-use land, 651 million acres

Grassland pasture and range land, 587 million

acres

Cropland, 442 million acres

Parks and wildlife areas, 297 million acres

Miscellaneous other uses, 228 million acres

Urban land, 60 million acres

2.35 Billion Acres to Offset All CO2

2.43 Billion Acres in All US

Planting Trees is Not The Answer

Sustainable/Green Building Standards

LEED (US) Leadership in Energy and Environmental Design

Silver, Gold and Platinum standards

HKBEAM (Hong Kong) Hong Kong Building Environmental Assessment Method

BREEAM (UK) Building Research Establishment Environmental Assessment Method

CASBEE (Japan) Comprehensive Assessment System for Building Environmental Efficiency

Green Star (Australia) Buildings rated on 6 star scale, with 6 being highest

Climate-responsive building principles: the beginning of a green building

Thermal mass

Diurnal temperature swing would allow for night-time cooling (natural ventilation) of heat loads absorbed during the day.

Solar thermal collectors / photovoltaics

High solar radiation lends itself very well

to these, offsetting heat and hot water

loads, as well as electrical load

BMW Munich

Shading

Air temperatures are not often above comfort levels, so major contributor to cooling load is actually solar radiation blocking this will greatly reduce cooling load

Daylighting

Applies in all climates daylight is healthier, more pleasant, and

free. Artificial lighting contributes to heat loads, and is a major

part of many commercial/institutional buildings electrical load

Daylight enhancement for buildings with a deep floor plate

Daylight enhancement for buildings with a

deep floor plate

Daylight enhancement for buildings with a

deep floor plate

Daylight enhancement for buildings with a

deep floor plate

Natural ventilation

Outdoor air is often within or just below comfort range, but issue is more likely to be noise and/or pollution (a double faade is a possible solution).

Other options include an earthduct and solar chimney for pre-conditioning of fresh air and solar-driven air movement

Behnisch, Behnisch & Partner

United States

Cal/EPA Building Headquarters

LEED EB PLATINUM (2004)

~56 kWh of energy from solar PV

Low flow fixtures

Building design maximizes daylight penetration

Recycled building materials used were cheaper than

new materials.

Estimated operational savings of $1.00/sq ft/yr.

California/EPA Headquarters

United States

UCSB Bren School of Environmental Science &

Management

LEED PLATINUM Certified

Strict environmental protection (located near ocean)

Reclaimed water used for gray-water operations

40 kW solar PV

Natural ventilation

UCSB Bren School

United States

The Gap, Inc. Headquarters in San Bruno, CA

LEED points in 3/5 categories

$60 million dollar project

Grass roof

Under Floor ventilation

Recycled building materials

4-8 year estimated payback period due to energy and operational efficiency savings

Gap Inc. Headquarters

United States

4 Times Square, New York

$500 million, 48 stories

LED lighting

Occupancy sensors

Cooling plant run on natural gas

15 kWh of solar PV

Planned FC used to generate power for night time hours

4 Times Square, NY

Transbay Tower, San Francisco

Rooftop park to absorb CO2

Wind turbines and solar PV to generate electricity

100% natural air ventilation

Capturing and recycling rainwater

Transbay Tower, San Francisco

United States

Clinton Presidential Library

LEED PLATINUM Certified

Rooftop garden

Recycling programs

Carbon Offsetting

Canada

Manitoba Hydro Building

LEED GOLD Certified

Energy reduction of 60%

Geothermal heat system

Green roof

Natural air ventilated

Daylighting maximization

Australia

Melbourne Convention Center

Solar hot water systems

Radiant slab heating and cooling in the foyer

Use of FSC (Forest Stewardship Council) timber, which

is environmentally friendly, rather than non-

renewable timber

Conducting an energy audit every six months -

energy use has decreased over the last five years.

Melbourne Convention Center

Australia

Council House Building, Melbourne

$50 million Australian dollars

10 stories

Use of Solar PV

Chilled ceilings

Blackwater sewage recycling

Wind turbines

Recycling of waste heat for heating/cooling system

Recycled timber louvres used to cool and shade

Expected payback in 10 years

Council House 2: Australia

United Arab Emirates

Masdar City, Abu Dhabi

Entire city designed to be powered by renewable

energies, primarily solar PV

Zero carbon, Zero waste ecology goals

6 square miles, strategically planned live/work space

No automobiles

Masdar City

Currently 60 MW of solar PV planned, increasing to 130 MW

20 MW of wind farms outside of city

Planned hydrogen power plant

Solar powered desalinization plant used to provide water

80% of water will be recycled and reused

Planned completion by 2009

Masdar City

All buildings

must be

designed to

minimize

energy and

water

consumption

Masdar City

Japan

Namba Parks

Built IN former baseball stadium

Reduced construction materials and waste

Master planned community, live/work area

One of the most Green areas of Osaka, Japan

Ecological features include

Waterfalls

Trees

Lawns

ponds

Namba Parks, Japan

Crystal Island, Russia

Self contained city

Energy from solar and wind turbines

Live/Work development

Maximizes daylighting

Maneuverable glass panels controlled to modify

internal temperature based on seasons

Crystal Island, Russia

BMW Welt, Munich

Solar rooftop, produces 824 kWp minimum

Steel panels on rooftop heat building via solar gain

Saves over 30% in energy costs

Natural ventilation system

BMW Welt, Munich