Zero Energy Buildings (ZEBs) National Policy Initiatives/Activities - - PowerPoint PPT Presentation
Zero Energy Buildings (ZEBs) National Policy Initiatives/Activities APGA Policy Conference March 29, 2016 Current State of Play Minor Share of New Building Starts Momentum is Growing at the State and National Level CA Leading the Way
APGA Policy Conference March 29, 2016
Zero Energy Buildings (ZEBs)
National Policy Initiatives/Activities
National Level – CA Leading the Way
2
3
4
9 Projects/ 4 Builders 13 Projects/ 5 Builders 35 Projects/ 22 Builders 7 Projects/ 7 Builders 12 Projects/ 12 Builders
Source: U.S. Department of Energy's Better Buildings initiative
76 Projects/ 50 Builders
39 53 53
39 127 152 21 33 39
50 100 150 200 250 300
2012 2014 2015
Ultra Low Energy Buildings ZNE Emerging Buildings/Districts ZNE Verified Buildings/Districts
160 60
5
Source: New Buildings Institute
191
6
Power
Building Energy Consumption
7
8
ENERY STAR for Homes, V 3.0
exceeds 2012 IECC levels
within the home’s thermal boundry
Meets or exceeds the EPA’s WaterSense S. 3.3
ENERGY STAR qualified
Meets or exceeds EPA Indoor airPLUS Verification Checklist
Meets EPA Renewable Energy‐Ready Home
9
DOE Proceeding ‐ Common Definition for ZEBs
actual annual source energy consumption is balanced by on‐ site renewable energy.
energy based definition – February 24, 2015
comments, many of which opposed a source energy based definition
Zero Energy Buildings, Campuses, and Communities – September 16, 2015
10
DOE/EPA Initiatives/Programs Relating to ZEBs
Building Rating Systems
Residential Programs
Commercial Programs
11
Definition(s)
Use Technologies
Technologies Needed for ZEBs
Gas Branding and Education
Electric Grid
12
Definition for ZEBs
in Working with the Industry
Effectiveness
13
Natural Gas in a Low Carbon Future
Technologies
15
Rick Murphy Managing Director – Sustainable Growth rmurphy@aga.org
1
Sue Kristjansson | Codes & Standards and ZNE Manager APGA Gas Policy Conference | Zero Net Energy: Panel | March 29, 2016
2
safe and reliable natural gas to our customers for more than 145 years.
distribution utility, providing energy to 21.6 million consumers through 5.9 million meters in more than 500 communities.
square miles
2
3
4
But what is it really? In California ZNE is…
Source: California Energy Commission, 2013 Integrated Energy Policy Report
2030
All residential new construction All commercial new construction 50% of existing commercial buildings to be retrofit 5
2025 2020
50% of existing state-owned buildings to be retrofit
6
safe and reliable natural gas to our customers for more than 140 years.
distribution utility, providing energy to 20.9 million consumers through 5.9 million meters in more than 500 communities.
20,000 square miles
6
Source: Courtesy of New Buildings Institute | newbuildings.org 7
8
9
Sources: Historic emissions from California's 2000-2013 greenhouse gas emission inventory (CARB). BAU scenario from E3 and LBNL’s PATHWAYS model, “Baseline” scenario: immediate freeze on current policies . More information at: https://ethree.com/documents/E3_PATHWAYS_GHG_Scenarios_Updated_April2015.pdf
100 200 300 400 500 600
1990 1995 2000 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050
California's Annual GHGs
(Million Metric Tons of CO2 Equivalent)
AB 32 limit (1990 levels by 2020) 2030 goal (40% below 1990 levels) E.O. B-30-15 Business as Usual scenario (E3’s PATHWAYS model)
Historic emissions
Necessary GHG reductions
2050 goal (80% below 1990 levels) E.O. S-3-05; Pledge made by 123 jurisdictions, including CA, representing 720 million total people and more than a quarter of the global economy
HIGH EFFICACY LIGHTING HIGH PERFORMANCE WALLS IMPROVED WATER HEATING SYSTEM EFFICIENCY HIGH PERFORMANCE ATTICS
IN INITIAL ITIAL CO COST ST FO FOR R ME MEASURES SURES SA SAVINGS VINGS OVE VER R A 30 30 YR
MORTGAGE TGAGE
20 2016 16 RE RESIDENTIAL SIDENTIAL ME MEASURES SURES |
Source: California Energy Commission, 2016 Building Energy Efficiency Standards
10
11
12
TIME DEPENDENT VALUATION SOURCE ENERGY
12
13
14
Sources: Vision 2014 Study, conducted by Meyers Research for Building Industry Association and SoCal Gas
95% 83% 91% 82% 95% 92%
15
Cooking Space heating Heating water Drying clothes Fireplaces Outlets for grill
Note: Estimated energy use is based on average operating conditions and costs of $0.14 per kWh and $1.00 per therm.
16
Total:
Space Heating Laundry Water Heater Cost savings compared to electric
Source: Energy Solutions Center
17
Source: Navigant Consulting, Strategy and Impact Evaluation of ZNE Regulations on Gas-Fired Appliances Phase I Technology Report, March 2015
ELECTRIC ONLY: MIXED-FUEL:
Los Angeles:
Electricity TDV Natural Gas (Therms) (kWh) (MMBtu) Solar PV Production (kWh)
19
19
Limit technology and you limit the possibility.
CH4
Convert waste from dairies, farms and landfills into biogas using anaerobic digestion extract the methane put in the pipeline for future use
SOURCE: Bioenergy Association of California, CARB May 2014 Look-Up Table30
POWER
WHAT’S POSSIBLE REPLACE
used by CA vehicles When used for transportation, Biogas from food and green waste can actually
from the atmosphere
addresses the storage challenge
excess renewable energy goes through electrolysis which splits the molecule hydrogen & carbon combine through methanization carbon captured from factories and plants methane can be stored in the pipeline for future use
hydrogen can also be stored directly in the pipeline
American Public Gas Association
2016 Markeng & Sales Trends & Training Conference │ SIF Operaons Conference │ Gas Policy Conference
March 29‐31, 2016 │ Savannah, Georgia
Zero Energy Buildings + Homes Panel Discussion
Municipal Gas Authority of Georgia
Largest non-profit, joint-action natural gas
agency in the U.S.
Established in 1987 by Georgia law Primary purpose is to provide adequate,
dependable and economical supplies of natural gas to municipal distribution systems
Member services assist in developing and
growing Member gas systems
All Gas Authority Members are APGA Members
Mission
To provide m unicipalities a reliable, econom ical supply of natural gas and to assist them in developing and grow ing their gas system s to optim ize the benefits of public ow nership.
7 9 Mem ber gas system s, 5 States 2 5 0 ,0 0 0 Mem ber custom ers Annual Mem ber volum e – 4 0 BCF
Zero Energy Building “Friend or Foe”
_________________________________
NATURAL GAS ZERO ENERGY BUILDING
stakeholders on environmental benefits & cost savings
Zero Energy Buildings not including fossil fuels
policies/legislation
building
Zero Energy Building – DOE Definition
A Common Definition for Zero Energy Buildings
Published by the Department of Energy, September, 2015
boundary which includes the point of utility interface, building energy,
energy
building; energy accounting includes all forms of building energy consumption within the site boundary; a ZEB balances its energy use so that the exported energy to the grid is equal to or greater than the delivered energy to the building on an annual basis Source Energy Calculations “…to assess the relative efficiencies of buildings with varying fuel types, it is necessary to convert these types of energy into equivalent units of raw fuel consumed in generating one unit of energy consumed on‐site. To achieve this equivalency, the conversion of source energy is utilized.” Measured Energy Stats
22 – 22 = 0
Building TL EUI (Primary Energy) = 22 kBtu/SF/YR Renewable Production EUI = 22 kBtu/SF/YR
Zero Energy Buildings in the U.S.
ZERO ENERGY BUILDINGS ‐ 2015
Architect, Engineer, Building Manager
drop $/KW since 2005
guidelines – becoming more into focus
environment
Zero Energy Buildings – Building Codes │ Standards
Purpose of Building Energy Codes & Standards
new and renovated buildings
the achievement of community goals
Benefits of Building Energy Codes & Standards
40%
Residential and commercial buildings account for 40% of all energy consumed – (EIA)
Earliest Know Written Building Code Code of Hammurabi, 1772 BC
and complete it, he shall give him a fee of two shekels in money for each sar of surface (228)
and does not construct it properly, and the house which he built fall in and kill owner, then the builder shall be put to death (229)
75%
By 2035, 75% of the U.S. building stock will be new or renovated
(Architecture 2030)
Zero Energy Buildings – Building Codes │ Standards Framework
Prescriptive Codes
buildings should meet (IECC, ASHRAE 90.1)
Performance Codes
building owners and expertise from code officials
Outcome‐Based Codes
1‐Setting energy‐use targets 2‐Responsibility for post‐occupancy performance 3‐Two‐stage process for verifying compliance
Prescriptive Path Performance‐ Based Outcome‐Based ZEB
IECC 2006, 2009, 2012; ASHRAE 90.1 ASHRAE 189.1; IgCC │RESNET │ DOE │ Energy Star California Title 24 Oregon Energy Code Washington E.C.
Zero Energy Building – Case Study Tifton, Georgia www.futurefarmstead.org
Zero Energy Building – Case Study
Georgia Peanut Commission
systems │ Passive solar
concrete, French drain – water flow into a peanut‐shaped pond
Peanut Facts
$1.25 billion industry
U.S. peanut production
State’s agricultural income
counties
Purpos Purpose – – A buildi building that com that communicate cates an “eart an “earth-f
y” message t ssage to consumers, m umers, members, a mbers, and t d the e general ral p public ic about the product about the product
Zero Energy Building – Case Study
Advanced Building Design
solution tubing system capturing roof heat
geothermal and pond coils – 30 EER
30 walls and R‐40 roof; concrete and galvanized steel; “tight home” – 1.1 blower door test; ERV – one air exchange per hour
most new, efficient buildings
Advanced Features
the surrounding gardens; send less water back than what falls on the roof
monitoring for managing livestock, fields, irrigation systems
Fa Farmers L rmers Living Sm ng Smart, E art, Efficientl ficiently, a y, and C d Comfortabl mfortably Farmstead Home/Lab – Tifton, Georgia Over 15,000 visitors annually
Zero Energy Building – Case Study
Advanced Building Design
electric heat pump water heater
Board; closed cell foam and cellulose
Homeowners L meowners Living S ng Smart, E art, Efficientl ficiently, a y, and C d Comfortabl mfortably Park Avenue Home – Tifton, Georgia Zero Energy Home
Energy Costs
Power 15 Kwh / Day and imported 4 Kwh / Day (measured on a site basis)
per month
Zero Energy Building – Case Study
Park Avenue – August, 2015
(397)Kwh
August Power Bill $5.27
Zero Energy Building – Case Study
100 200 300 400 500 600 $0.00 $5.00 $10.00 $15.00 $20.00 $25.00 $30.00 $35.00 $40.00
Park Avenue – Energy Balance, 2015
Exported to Georgia Power – 400 Kwh / Month Imported from Georgia Power – 100 Kwh / Month
Park Avenue – Cost Balance, 2015
Power Charge: $30.00 per month (average) Power Credit: $21.00 per month (average) Net Power Bill: $ 9.00 per month (average)
Zero Energy Building – Case Study
Real Time Energy Use July, 2014 – January, 2016 Home Energy Use 92% days / Energy sent to the grid 8% days / Energy used from the grid
Natural Gas and Zero Energy Buildings ‐ Considerations
Code & Standard Development and Processes – (i.e., Code and standard
primary or source energy metrics – APGA Member ICC representation
Development – Efficient gas technologies – solar‐gas, micro‐CHP, gas heat pump w/h; high performance building modeling
Dialogue – Improved communication and problem‐solving with the design community and academia – APGA, APGA RF Architect Survey Initiative
A broader conversation
public; through state and regional associations
Poverty Pollutants Health Hazards Climate‐ Related Incidents
www.cmictools.com