The North American session of the international webinar series,"THE IMPLEMENTATION OF ENERGY EFFICIENT BUILDINGS POLICIES IN 5 CONTINENTS" was held on October 12, 2010 9:00 am, Eastern Daylight Time (New York, GMT-04:00). The agenda for the free 2-hour webinar was: · North America: Public and Private Measures for Fostering the Adaptation of Green Building Practices, Jonathan Westeinde, Chair, Green Building Advisory Group, North American Commission for Environmental Cooperation · United States: Country Report on Building Energy Codes & Standards Regulation in the United States, Darren B. Meyers, Technical Director, Energy Programs, International Code Council · Canada: Canadian Energy Efficient Building Policies, James Clark, Buildings Division, Office of Energy Efficiency, Natural Resources Canada · Mexico: Toward Energy Efficiency in Housing in Mexico, Evangelina Hirata, Consultant on Energy Efficiency in Housing · United States: Beyond the Code -- Energy, Carbon, and Cost Savings using Conventional Building Technologies, Joshua Kneifel, Economist, National Institute of Standards and Technology

1. The Implementation of Energy Efficient
Buildings Policies in 5 Continents
Webinar October, 12, 2010
MEXICO: ENERGY EFFICIENCY IN HOUSING
Evangelina Hirata Nagasako
Consultant in Energy Efficiency in Housing

2. IMPACT OF BUILDINGS ON THE ENVIRONMENT
Buildings have an important impact on both the health of the environment and the
people who live in them
Total GHG emissions by country 1988
Million ton •Mexico is among the first 16 countries with
Mexico
the higher levels in GHG (greenhouse gas
emissions)
• Environment quality is related to people’s
comfort and preservation of our natural
resources
• In home building it means careful
attention to the principles of edification to
promote changes in the design and in the
way of living
• The goal is to reduce the consumption of
purchased energy to reduce GHG emissions

3. ENERGY CONSUMPTION IN HOUSING
• Energy Efficiency
- The residential sector represents 32% of the energy consumption
- Energy in the residential sector is mainly used for lighting, gas,
space heating and cooling, use of appliances.
- Consumed electricity per home in a temperate climate is approx. of
2.4 KWh per year
Residential
32% Residential
Industrial 8%
54% 1%
2%
3%
Commercial Public Agricultural
Transport Industrial Residential
Energy includes: Natural Gas, LP Gas and Electricity. Source: Secretariat of Energy

4. ENERGY CONSUMPTION IN HOUSING
Historically, the residential sector has been
the largest consumer of electricity, not only in GWh 39,863
Consumo Sector
terms of quantity but also in the number of users Doméstico
25%
This represents 32% of total energy consumption
GWh Otro 120,521
Consumo Nacional
75%
It is estimated that consumed energy in Mexico is
used for:
61% cooking
28% water heating
5% lighting
3% cooling
In comparison, in OCDE countries the largest
amount of energy consumed is used for space
heating and water heating

5. ENERGY CONSUMPTION IN BUILDINGS
Buildings consume:
40% of the total energy produced
40% of all raw materials
25% forest products
16% of fresh water
Buildings produce:
35% of CO2 total emissions
40% of total solid residues
50% of total FCCs (degrading substances of the ozone
layer)

6. HOME MORTGAGES ALLOCATED BY INCOME
Households per Income (2005)
12.0
9.6
10.0
8.0
millions
5.9 5.6
6.0
4.6
4.0
2.0
0.0
Up to 3 MW More than 3 to 5 MW More than 5 to 8 MW. More than 8 MW.
2005
37.3% 22.9% 17.9% 21.9%

7. HOME CONSTRUCTION
Houses built By whom Home type
Middle and Housing Developers Single – family
upper income Land owner detached
housing (w/architect & contractors)
( 2 to 50 houses)
Housing Developers Multi - family or single family
housing developments
Low income Self-construction
housing (100 to 2500 houses)

8. WHO BUILDS LOW INCOME HOUSING IN MEXICO?
The ten largest homebuilders in México build 25 – 45% of the housing
45%
market
Medium-
Medium- and low-income housing subdivisions produced by these
low-
average.
developers have 100 – 200 houses on average.
However, some of the biggest housing developments have more than
15, units.
15,000 units.
Because of the limited urban land availability, homebuilders have urban
more.
reserves equivalent to 2 - 5 years and are continuously acquiring more.

9. HOUSING DEVELOPMENTS

10. HOUSING DEVELOPMENTS

11. HOUSING POLICY.
CONAVI – Mexico’s National Housing Agency
To establish Mexico’s Housing
Policy
To propose housing sector
regulations and policies and
promote the generation of
uniform systems and regulations
that harmonize the criteria for
quality housing
To promote sustainable housing
development.

12. SUSTAINABLE HOUSING NATIONAL POLICY
►To promote sustainability standards for housing and
urban development based on the following key issues:
promoting occupants’ health
enhancing energy efficiency,
improving the efficient use of natural resources
encouraging environmental responsibility, and
keeping it affordable
►To promote the development and use of new
technologies for energy efficiency to minimize
environmental impact.
►To participate in international efforts to reduce global
warming according to the Kyoto Protocol by reducing
emissions produced by the housing industry.

13. SUSTAINABLE HOUSING POLICY IN MEXICO
Standards, codes,
Regulation certification RESIDENTIAL CODE
SUSTAINABILITY CRITERIA
Building materials,
CLEAN DEVELOPMENT
Research & development building systems, MECHANISM
evaluation, etc.
GREEN MORTGAGE
Building materials, SUBSIDIES PROGRAM
building systems,
Training and information SUSTAINABLE HOUSING
evaluation, etc. CERTIFICATION
VERIFICATION AND
Subsidies, Green CERTIFICATION SYSTEMS,
Financing instruments for mortgage, Carbon
builders, manufacturers certificates, Fiscal and
and buyers administrative incentives

14. STRATEGIC PROGRAMS
Technical Criteria for Sustainable Housing Developments
Site selection and urban development
Infrastructure and services
Project Design: solar passive systems
Building materials (insulation)
Energy efficient technologies (lighting fixtures, solar water heater)
Efficient use of water (water treatment, reutilization, rain water)
Home maintenance and solid waste management
Promote Technologies for sustainable homes.
Residential Building Code a model code to be adopted by local
Code,
authorities to set minimum building standards, including sustainable
criteria.
Federal subsidies for new houses and Green Mortgages
Clean Development Mechanism (CDM)

15. ENERGY EFFICIENCY CRITERIA
Strategies for energy efficiency in large housing projects and single family
dwellings in Mexico
Topics:
Topics
EFFICIENT USE AND ENERGY SAVING
• Bioclimatic Architecture
• Materials and products
• New Technology (equipment)
(equipment)
RENEWABLE ENERGY
• Solar energy for water heating
• Photovoltaic: Returning energy onto
the power grid

16. BIOCLIMATIC ARCHITECTURE
– Architectural Project
• General Characteristics
• Solar control
• Ventilation
• Windows
• Building Systems and
Materials
• Green Areas
• Other climate control
equipment

17. ENERGY SAVINGS
Energy Saving Technology
Lighting
Gas
House appliances
Energy Saving Standards
• Renewable Energy
– Rights for solar radiation
– Solar Water Heater Panels
– Solar power to electricity
• Photovoltaic Panels

18. HOUSING PUBLIC POLICY INTEGRATED TO
URBAN DEVELOPMENT
Technical Criteria for
Sustainable Housing Developments
Territorial ordering
Urban development
A. Location, densities, vertical
edification and services CDM, Technologies
I. Integration and proximity to the urban
zone Green Homes
II. Infrastructure
III. Land use and housing density
B. Efficient use of energy and water Different combinations of
I. Gas, electric power and thermal envelope technologies:
II. Passive systems: Urban and architectural
design Efficient
•Efficient lighting
III. Water availability, water supply in housing •Thermal envelope
Thermal
IV. Wastewater and graywater •Solar water heating
Solar
•Photovoltaic systems
Photovoltaic
C. Solid waste management •Efficient air conditioning
Efficient
I. In housing •Systems for water saving
Systems
II. Green areas

19. MEXICO’S CLEAN DEVELOPMENT MECHANISM PROGRAM
(CDM) FOR HOUSING
This program allows projects that
individually would not be feasible for CDM,
to have access to Carbon Stock
Certificates.
The methodology to measure
emissions reductions was
approved by the Executive Board of
the Clean Development
Mechanism of UNFCC on July 17th,
2009

20. MEXICO’S CLEAN DEVELOPMENT MECHANISM PROGRAM
(CDM) FOR HOUSING
This methodology is applied to large housing developments
with common characteristics, such as built area, building
materials, cost, and socio-economic level of occupants.
It requires the development of a database to provide
information about gas emissions from houses.
It requires establishing a monitoring system between the
traditional housing as the baseline and sustainable housing.
The program sets the precedent for any potential commitments
in a post-Kyoto regime and allow to the government program to
generate carbon credits
PoA rules now allow for the inclusion of more than one
methodology. This program will use:
AMS-I.C (for solar water heaters)
AMS-III.AE (for electricity efficiency)

21. CHARACTERISTICS AND ELEMENTS IN THE METHODOLOGY
Reductions in Renewable energy Reductions in gas
energy use consumption
Passive solar designs Photovoltaic systems Solar water heaters
Windows overhangs
Cross ventilation Automatic water
Heat bombs heaters
Insulation
Efficient technologies
lighting
Air conditioning
Needs a strategy for the use of Photovoltaics and to establish technical
requirements and standards
Development of innovative technologies at competitive prices

22. ESTIMATED ANNUAL EMISSIONS
Baseline Scenario
Very hot during
Temperate summer Hot all year
Emissions Ton of CO2
Electricity 0.74 2.26 3.79
Gas 0.98 0.98 0.20
TOTAL 1.71 3.24 3.99
Sustainable Housing Scenario
Very hot during
Temperate summer Hot all year
Emissions Ton of CO2
Electricity 0.62 1.06 1.51
Gas 0.49 0.49 0.20
TOTAL 1.10 1.55 1.71

23. TOWARDS NET-ZERO ENERGY IN HOUSING
To achieve a balance in housing between the energy consumed
and the energy produced over a year’s term, a series of elements
related to an efficient use of the energy in combination with the
use of renewable energy programs, such as photovoltaic systems,
are utilized.

24. REGULATIONS AND STANDARDS
RESIDENTIAL BUILDING CODE CEV
Use sustainability criteria in a Residential Building
Code towards a “Green Building Code”
The CEV’s Sustainability Chapter is aimed to provide
criteria for a rating system for green residential buildings
Criteria in the Residential Building Code shall be
considered part of the requirements of a Clean
Development Mechanism CDM

25. FINANCING INSTRUMENTS
Federal Subsidies
The federal government through the program Esta es tu casa, (This is your Home)
contributes to the building of sustainable housing by giving subsidies to low income
housing buyers that are not able to cover financing granted.
Houses shall include basic technical criteria:
• Gas,
• Electricity
• Water
Home buyers are able to get savings on:
• Energy consumption
• Utility payments (gas, electricity and water)
• CO2 emissions
Green Mortgage
Green mortgage is based on additional capacity generated from savings in consumption
of electricity, gas and water.
Thus, permitting to increase the amount of credit that an employee is entitled to because
of a higher home value derived of the energy efficiency technologies.

26. FINAL REMARKS
Mexico is committed to continue the energy efficiency programs in
housing in the short and long terms; these programs are integrated
to a CO2 reductions programs.
Through federal programs, home builders are encouraged to build
low income housing that includes sustainable characteristics.
The manufacturer sector of green technologies has grown to offer
home builders, the products they need at a much more competitive
price.
The challenge is that every new house built in Mexico, it's built with
sustainable criteria that results in energy savings and CO2
reductions to the atmosphere among other benefits to
environment.

27. Thank you
Evangelina Hirata Nagasako
ehiratan@gmail.com