addressing the challenge to improving building energy ... · edificação unifamiliar de média...
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Towards policy for efficient buildings in Brazil
Addressing the challenge to improving building energy performance
Edward Borgstein
São Paulo, 24th April 2018
Consumption growth puts pressure on supply
0
5.000
10.000
15.000
20.000
25.000
30.000
35.000
40.000
Consumo Final de Energia
Residencial Comercial Público
20% 52%
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5000
10000
15000
20000
25000
Consumo Final de
Eletricidade
Residencial Comercial Público
Balanço energético Nacional (BEN) 2016
Official forecasts show rapid growth
57.440 tep
17%
reductions
from
efficiency
CBCS Aspectos da Construção Sustentável 2014
Energy prices have also risen sharply
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2011 2012 2013 2014 2015 2016
Tarifas Médias - AES Eletropaulo (R$/MWh)
Eletropaulo Comercial Eletropaulo Industrial
ANEEL/Eletropaulo
Carbon emissions from buildings are growing
-
10
20
30
40
50
60
70
Mill
ions
GHG emissions from buildings in Brazil, 1990 – 2015, (MtCO2e)
Total Combustíveis Total Eletricidade
Ministry of Science, Technology and Innovation, 2016
Some buildings can be NZEBs onsite
Edifício
corporativoSP / RJ / BA
Edifício
públicoSP / RJ / BA
Agência
bancáriaSP / RJ / BA
Edificação
multifamiliar de HISSP
Escola
públicaRJ
Edificação unifamiliar
de média rendaSP
And this is already happening
EdifícioFonte
RenovávelCaracterísticas
Creche
Municipal
Hassis
Florianópolis, SC
(Construído)
Painéis
fotovoltaicos
na cobertura
(21kW)
LEED Platinum
Construída com recursos do Fundo Nacional de
Desenvolvimento da Educação (FNDE) e do salário-
educação, possui também:
• Aquecimento solar de água;
• Sensores de movimento e luminosidade;
• Aproveitamento da iluminação natural.
RB12
Rio de Janeiro,
RJ
(Retrofit)
Painéis
fotovoltaicos
e células de
hidrogênio
(previsto)
Idealizado pelo escritório de arquitetura franco-
brasileiro Triptyque, alinha-se ao conceito do maior
projeto de revitalização urbana Porto Maravilha.
Possui:
• Fachada bioclimática e dinâmica, com vidro duplo
com brilho diamantado;
• Vigas frias e ventilação natural;
• Paisagismo suspenso.
Sinduscon PR
Curitiba, PR
(Projeto)
Painéis
fotovoltaicos
na cobertura
(98kW)
LEED Platinum
O novo prédio do Sindicato da Indústria da
Construção Civil do Paraná almeja ser o mais
sustentável do Estado, e tem previsão de ser
concluído em janeiro de 2018. Possui:
• Revestimento da fachada em vidro duplo;
• Utilização da tecnologia BIM (Building Information
Modeling) no gerenciamento do projeto;
• Aproveitamento da iluminação natural.
There are still a number of fundamental challenges…
Fragmented market
Low awareness & visibility
Poor compliance levels
Lack of data
No coordinated activities
Split incentives and ownership
Different service levels
…but we are in a good position to start to address them
Limits on supply-side generation (cost and environmental)
Political visibility and willpower
Funding availability (Procel and ANEEL)
Range of experiences and test cases
>10 years of technical development
How do we get past the design and into implementation and feedback?
Collect more data: get to know the building stock
HVAC market modelling and assessment – iCS/LBNL
PPH: survey on ownership and use of appliances – Procel
Commercial buildings consumption survey – EPE
Benchmarking database – CBCS
Simplify regulatory compliance
NBR 15.575
Standardise accounting and reporting
frameworks for:
Building codes
Subsidy programs
Voluntary certifications
Labelling programmes
Benchmarking and transparency
MEPs
Benchmarking and energy auditing
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100
150
200
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300
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400
450
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
En
erg
y c
on
su
mp
tio
n (
kW
h/m
²/y
ea
r)
Building
Comparisons of energy consumption with benchmarks
E_Real
E_Bench_Típico
E_Bench_Eficiente
Major air conditioning operational
issues
Significant comfort issues
Loads dominated by Data Centre
Main end-use is theatre (not office)
Benchmarking and energy auditing
Benchmark
development
Benchmarks for 15
building types –
online platform
M&V - Auditor
for data input
and quality
assurance
+ utility data
+ tax registry
+ asset ratings
Training
Policy
Transparency
laws for building
energy
End-user
Energy
audits
Semi-automated
tools
Financial
incentives
Input energy data
and receive na in-
use label
(operational rating)
Efficient InefficientNormal
Public buildings
Commercial buildings
Dwellings
Municipal governments can lead implementation
Implement building codes (more stringent than
national MEPs)
Incentivise sustainable buildings – property tax,
construction quotient, fees
Local transparency programmes
Efficiency in public buildings
Remove barriers to retrofit
Training and awareness
Cross-cutting studies are needed for support
Plan structured capacity building: Universities, technical colleges,
designers, facilities managers, regulators
Study comfort and indoor environmental quality in the context of
energy performance and occupant expectations
Start to address embodied energy of buildings as a key part of energy
performance
Create a culture of transparency around energy performance data
Develop and test models for financial incentives and subsidies for
efficient buildings (the carrots)
But the key challenges have started to be addressed
Fragmented market
Low awareness & visibility
Poor compliance levels
Lack of data
No coordinated activities
Split incentives and ownership
Different service levels
Apply a range of approaches
Market development
Staggered roll-out and capacity building
Targeted studies and data management
EE Action Plan and Procel aligned
Increase transparency of performance
Address building and equipment