1. Scoping Green
Renovation
Andy Shapiro, Energy Balance, Inc.
andy@energybalance.us
14 April 2010
Energy Balance, Inc.

2. Scoping Green Renovation
Setting goals, metrics, implementation
strategies
MacArthur “Roadmap” work
Green strategies for affordable
housing.
Prioritizing various elements
What does this look like in a project?
Ongoing tracking of benefits
Energy Balance, Inc.

3. Why Bother?
The perfect storm
Energy Balance, Inc.

4. Setting goals, metrics,
implementation strategies
Energy Balance, Inc.

5. Setting goals, metrics,
implementation strategies
Why bother to set goals?
Energy Balance, Inc.

6. Setting goals, metrics,
implementation strategies
Why bother to set goals?
Energy Balance, Inc.

7. Goals, Objectives and Strategies
Define the ENVIRONMENTAL
GOALS for the building.
Best before schematic design
phase
Green design stretches out the
schematic design phase.
Energy Balance, Inc.

8. Goals, Objectives and Strategies
Example GOAL: Highly efficient
use of energy
Energy Balance, Inc.

9. Goals, Objectives and Strategies
Translate goals into OBJECTIVES
Metrics to see if goals are being
met, such as
Use 50% less energy than Energy Code
Reduce building energy operating cost
by 50%
Maintain affordable PUM in year 2025
Energy Balance, Inc.

10. Goals, Objectives and Strategies
Translate OBJECTIVES into
specific systems or STRATEGIES
that will be considered for the
building.
Example STRATEGIES: Super-
insulated walls; super-windows;
highest efficiency boilers, energy
recovery ventilation, solar hot
water.... Energy Balance, Inc.

11. Goals, Objectives and Strategies
GOAL
OBJECTIVE
STRATEGIES
Energy Balance, Inc.

12. Goals, Objectives and
Strategies
GOAL: Highest energy
efficiency
OBJECTIVE: 50% less energy use
than code
STRATEGIES: Super-insulation,
highest efficiency boilers and chillers,
energy-recovery ventilation
Energy Balance, Inc.

13. Scoping Green Renovation
Roadmap to Energy Affordability:
How much to spend on affordable
housing rehab to be sure energy
costs stay affordable?
(And how to spend it?)
Energy Balance, Inc.

14. Roadmap to Energy
Affordability
Purposes:
Provide roadmap for housing
providers
Provide data for policy-makers to
set funding levels
Energy Balance, Inc.

15. Volatility in current energy markets
Energy Balance, Inc.

16. Volatility in energy markets
Energy Balance, Inc.

17. Roadmap to Energy
Affordability
Risk avoidance as an approach to the
volatility in current energy markets
Energy Balance, Inc.

18. Roadmap to Energy
Affordability
“Near term” and ”permanently”
affordable
Energy Balance, Inc.

19. Roadmap to Energy
Affordability
“near term” affordable -- for 15
years energy costs will not effect
affordability
Energy Balance, Inc.

20. Roadmap to Energy
Affordability
“near term” affordable -- for 15
years energy costs will not effect
affordability
”permanently affordable” -- energy
costs will be so low as to not
effect affordability for the
foreseeable future
Energy Balance, Inc.

21. Roadmap to Energy
Affordability
For “near term” affordable, what are:
Current fuel costs?
Analysis period?
Escalation rate? (base rate and high rate)
Acceptable $PUM? (total energy cost for
heat and hot water -- includes common
costs and tenant costs)
Energy Balance, Inc.

22. Roadmap to Energy
Affordability
The “oracle method” arrived at
Current fuel cost $3.00/gallon oil
Analysis period – 15 years
Escalation rates (5% and 10%)
Acceptable $PUM in yr 15 = $75 for a
typical 2 BR, family, 750 sq. ft.
Energy Balance, Inc.

23. Roadmap to Energy
Affordability
Parameters for “permanently affordable”
Use most expensive fuel cost:
photovoltaics
Minimize total investment in energy
improvements plus investment in PV to
provide all the energy needed.
Energy Balance, Inc.

24. permanently affordable
Cost for Cost for Total Cost
Rehab PV for Rehab + PV
Only Only Total
Existing
Unit -- $$$$$$$$$ $$$$$$$$$
Low level $$ $$$$$ $$$$$$$
Rehab
Level 2 $$$ $$$$ $$$$$$$
Rehab
Level 3 $$$$ $$$ $$$$$$
Rehab
Level 4 $$$$$$ $$ $$$$$$$$
Rehab
Energy Balance, Inc.

25. permanently affordable
Cost for Cost for Total Cost
Rehab PV for Rehab + PV
Only Only Total
Existing
Unit -- $$$$$$$$$ $$$$$$$$$
Low level $$ $$$$$ $$$$$$$
Rehab
Level 2 $$$ $$$$ $$$$$$$
Rehab
Level 3 $$$$ $$$ $$$$$$
Rehab
Level 4 $$$$$$ $$ $$$$$$$$
Rehab
Energy Balance, Inc.

26. Roadmap to Energy Affordability
Housing Types for Analysis
Description
1 Slab-on-grade duplex/townhouses, typically 1970's/1980's vintage
Larger downtown buildings, multi-unit, older buildings, may have retail below, may be
2 historic. Will include interior-insulation for Near Term Affordable retrofit and exterior
insulation for Permanently Affordable
Double loaded corridor, newer construction, typically 20 - 40 units, built within last
decade. Costs will be for upgrading features during construction, as opposed to retrofit costs
3
since existing examples tend to be relatively new buildings and since this is a likely form for much
future new construction of affordable housing
Typical housing project that often includes several smaller buildings, either built as
4
apartments or changed from single family to multi-family
Energy Balance, Inc.

27. Scoping Green Renovation
Setting goals, metrics, implementation
strategies
MacArthur “Roadmap” work
Green strategies for affordable
housing.
Prioritizing various elements
What does this look like in a project?
Ongoing tracking of benefits
Energy Balance, Inc.

28. Green strategies for
affordable housing
Energy Balance, Inc.

29. Green Buildings
What Are They?
Healthy
Durable
Efficient
Meet these goals without affecting
future generations’ ability to do the
same.
Energy Balance, Inc.

30. Healthy
Healthy for the Occupants
Healthy for the Construction
Workers and Fabricators
Healthy for the Earth
Energy Balance, Inc.

31. Healthy for the Occupants:
Excellent Indoor Air Quality
Materials –
zero formaldehyde
avoid plasticizers
Avoid/minimize VOC’s
Allergen control: Don’t feed the
critters: avoid or carefully locate
carpet
Energy Balance, Inc.

32. Hardwood floors
in living and
dining room
(Waterfront
Housing,
Burlington, VT)
Energy Balance, Inc.

33. Healthy for the Occupants:
Excellent Indoor Air Quality
Ventilation – good and plenty!
All houses need mechanical
ventilation
The price of living in a closed box is
bringing in fresh air!
Energy Balance, Inc.

34. Healthy for the Occupants:
Excellent Indoor Air Quality
Compartmentalization of apartments
for second-hand smoke control
Energy Balance, Inc.

35. Ventilation
Minimum – exhaust-only:
high efficiency, quiet fans, running 24/7
Best – balanced system:
energy recovery, fresh air to each
occupied room, stale air out of moisture
producing rooms, 24/7
Energy Balance, Inc.

36. Balanced System
Energy Balance, Inc.

37. Heat recovery ventilation
Energy Balance, Inc.

38. Energy and Heat Recovery Ventilation
How is it done?
Energy Balance, Inc.

39. Healthy for the Occupants:
Moisture control = mold control
Rain water
Ground water
Internally
generated
moisture
Mold = potential liability issue
Energy Balance, Inc.

40. Healthy for the Occupants:
Moisture control = mold control
Rain water
Problems usually from the roof!
Proper grading critical
Rain screen approach to siding
See Building Science Corporation’s
excellent work
Energy Balance, Inc.

41. Image courtesy John Straube, Building Science Corporation
Energy Balance, Inc.

42. Healthy for the Occupants:
Moisture control = mold control
Ground water
Capillary breaks in foundation
Continuous moisture barrier
Excellent drainage
Energy Balance, Inc.

43. Capillary
break
and
vapor
barrier
Energy Balance, Inc.

44. Healthy for the Occupants:
Moisture control = mold control
Internally generated moisture
No thermal bridges = No
condensation. Good windows
Slab insulation – important for
condensation control
Ventilation
Energy Balance, Inc.

45. Healthy for the Occupants:
Moisture/Allergen control
Surfaces easy to keep clean
Building maintenance: Non-toxic cleaning
products
Energy Balance, Inc.

46. Healthy for the Construction
Workers and Fabricators
Low toxicity
materials
Low toxicity
during
manufacture
Low toxicity
during
installation
Energy Balance, Inc.

47. Healthy for the Earth:
Materials Choices
Recycled –
Re-hab an old
building
Recycled –
cellulose
insulation
Recyclable –
Metal roofing
Energy Balance, Inc.

48. Healthy for the Earth:
Materials Choices
Sustainable – certified
sustainably harvested wood
Low embodied energy – local
material
Energy Balance, Inc.

49. Healthy for the Earth: Site and
Location Choices
Build on public transit lines
Build on non-agricultural
land
Build near walking and
bicycle paths
Energy Balance, Inc.

50. Healthy for the Earth: Site and
Location Choices
Cluster
development
Preserve and
enhance existing
ecosystems
Rehabilitate a
‘brownfield’ site
Energy Balance, Inc.

51. Healthy for the Earth: Site and
Location Choices
Local plants
Limit turf that
requires mowing
Manage runoff
from parking
and roads
Energy Balance, Inc.

52. Healthy for the Earth:
Durable
Durable
materials
Durable
detailing
Energy Balance, Inc.

53. Healthy for the Earth:
Durable
Energy Balance, Inc.

54. Healthy for the Earth:
Durable
Energy Balance, Inc.

55. Healthy for the Earth:
Efficient
Resource Efficient
Space Efficient
Energy Efficient
Energy Balance, Inc.

56. Resource Efficient
Only build as much space as needed
Optimize materials use and systems
design: Don’t ‘over-engineer’ !
OVE Framing
Recycling of
construction
debris
Energy Balance, Inc.

57. Resource Efficient
Low water
consumption –
water-efficient
toilets
Easy-to-use
recycling facilities
Energy Balance, Inc.

58. Energy Efficient
(Good) Super envelope
High efficiency mechanical
systems
High efficiency lighting and
appliances
Energy Balance, Inc.

59. Good
envelope
Energy Balance, Inc.

60. Super-
Super windows:
From R-3 to
envelope R-5 and
beyond!
Add 4” foil-
faced foam
to 2x6 wall Add 2
more
From R-16 inches
to R-40 foam
From
R-10 to
R-20
Energy Balance, Inc.

61. Good
envelope
Energy Balance, Inc.

62. Foam-in-
Super place air
seal
envelope
Add 4” foil-
faced foam
to ceiling
From R-28
to R-54
Energy Balance, Inc.

63. Super
envelope
retrofit
(Building
Science Corp)
Energy Balance, Inc.

64. Super windows – R-5 instead of R-3
Fiberglass frame window, triple + two-low-e +
argon + Superspacers (Accurate Dorwin, Serious
Materials, Marvin new 1.5” triple)
Energy Balance, Inc.

65. Super envelope Air Leakage (Infiltration) Rate
Air Changes per Hour
– Air leakage 0.40
Infiltration 0.35
ACH 0.30
Typical 0.35 0.25
Micro-load 0.10 0.20
0.15
0.10
0.05
-
Typical Micro-load
Energy Balance, Inc.

66. Super envelope –
Air leakage
Infiltration
ACH Gal propane $$/yr
Typical 0.35 115 $ 402
Micro-load 0.10 33 $ 115
Savings 82 $ 287
Energy Balance, Inc.

67. Super envelope –
Air leakage
Infiltration
ACH Gal propane $$/yr
Typical 0.35 115 $ 402
Micro-load 0.10 33 $ 115
Savings 82 $ 287
Cost for HRV $ 2,000
cost for air sealing $ 500
total cost $ 2,500
Payment $ 201
Energy Balance, Inc.

68. Super envelope –
Air leakage
Infiltration
ACH Gal propane $$/yr payment
Typical 0.35 115 $ 402
Micro-load 0.10 33 $ 115
Savings 82 $ 287 $ 201
Cost for HRV $ 2,000
cost for air sealing $ 500
total cost $ 2,500
Payment $ 201
Energy Balance, Inc.

69. Energy Efficient
Recycle energy
flows
Ventilation
energy recovery
Waste water
energy recovery
Energy Balance, Inc.

70. Energy Efficient
Waste
water
energy
recovery
Energy Balance, Inc.

71. Energy Efficient Lights and
Appliances
Lighting Design
High efficiency lighting –
Energy Star fixtures
Occupancy control for
lighting in common areas
(check ballasts for “program start”)
High efficiency appliances –
Energy Star appliances
Energy Balance, Inc.

72. Energy Efficient
Use as much renewable energy as you can
afford!
Bio-mass heating
Energy Balance, Inc.

73. Energy Efficient
Use as much renewable energy as you can
afford!
Passive solar – can be inexpensive
Energy Balance, Inc.

74. Energy Efficient
Use as much renewable energy as you can
afford!
Solar thermal, solar electric
Energy Balance, Inc.

75. Prioritizing various elements
for affordable housing
High integrity thermal envelope
(thermal and moisture)
Very durable
Recover energy flows
Conserve water
Energy Balance, Inc.

76. Prioritizing various elements
for affordable housing
High efficiency distribution
Excellent indoor air quality – Good
ventilation and materials
High efficiency equipment
Use renewable energy
Energy Balance, Inc.

77. Scoping Green Renovation
Setting goals, metrics, implementation
strategies
MacArthur “Roadmap” work
Green strategies for affordable
housing.
Prioritizing various elements
What does this look like in a project?
Ongoing tracking of benefits
Energy Balance, Inc.

78. Setting your energy goals
Data Gathering and Analysis
Energy Goals
Developing a Workplan
Energy Balance, Inc.

79. Data Gathering
Building Stats
Building Energy Use
Building Audit
Energy Balance, Inc.

80. Data Gathering
Stats
--the patient’s history
Energy Use
-- the patient’s pulse
Detailed Energy Audit
-- the patient’s EKG
Energy Balance, Inc.

81. Stats
Building Name
Location, physical address
Location, city, state and zip
Total building conditioned sq ft
Total building unconditioned sq ft (sheds, storage, etc.)
Total building semiconditioned sq ft (basements, mudrooms, other)
Number of units, by # bedrooms
% Occupancy
Date of original construction
Date of last renovation
Known problems with occupant comfort
Known energy usage issues
Deferred/upcoming maintenance items
Are there needs for expansion or renovation of this building?
Your name, date
Other notes
Energy Balance, Inc.

82. Stats
Building envelope
Building construction type, number floors double loaded corridor, 4 floors
Describe system, insulation and cladding for:
Walls 2x4, brick clad, no insulation
Roof/Ceiling 2x10, 3" rigid ins. Under membrane
Foundation concrete block, no insulation
Slab 4" (?) in basement, no insulation
Windows Old doublehung + triple trackstorm
Date of most recent energy audit N/A
Is audit report available? If so, from whom N/A
Is building on historic register or other restrictions? Historic district, rehab pres. credit
List building elements in need of repair Brick spalling near grade, windows
Describe known problems with building envelope Moisture in basement, water
Other notes Structure sound
Energy Balance, Inc.

83. Stats
Mechanical Systems
Heating System
fuel Oil
prime mover type Boiler
Prime mover capacity (Btu/hr) 500,000
distribution Steam radiators
year installed 1935
Cooling System
type Window air condtioners
capacity ?
year installed ?
Ventilation system
type intermittent bath fans
capacity, cfm ?
Describe water source for building City water
Known issues with any mechanical systems high water pressure, poor zoning
Other notes
Energy Balance, Inc.

84. Energy Use – taking the pulse
12 month total energy and water usage, energy usage from all sources
start date of usage data
end date of usage data
ccf natural gas
gallons oil
gallons propane
cords wood
tons wood chips
tons wood pellets
kWh electricity
peak electricity demand, kW
gallons water use
Other notes
Energy Balance, Inc.

85. Energy Use – taking the pulse
ENERGY USAGE DATA Total Total
Square Electricity Propane Nat Gas
Occupancy Footage kWh Oil Gals Gals cu ft
Burlington Cohousing multi-family 26,450 105,372 14,241
Waterfront Housing multi-family 45,000 202,000 10,545
Evergreen Place elderly housing 17,240 81,840 1,397
Energy Balance, Inc.

86. Energy Use – taking the pulse
PERFORMANCE DATA
Btu/ kWh/
ALL ENERGY SOURCES MMBtu sq.ft.-yr sq.m.-yr
Burlington Cohousing multi-family 1,812 69,000 217
Waterfront Housing multi-family 1,765 39,000 123
Evergreen Place elderly housing 469 27,000 85
Energy Balance, Inc.

87. Energy Use – taking the pulse
PERFORMANCE DATA
Btu/ kWh/
ALL ENERGY SOURCES MMBtu sq.ft.-yr sq.m.-yr
Burlington Cohousing multi-family 1,812 69,000 217
Waterfront Housing multi-family 1,765 39,000 123
Evergreen Place elderly housing 469 27,000 85
PassivHaus standard:
15 kWh/sq.m-yr heat
120 kWh/sq.m-yr total SOURCE energy
Energy Balance, Inc.

88. Energy Use – taking the pulse
PassivHaus standard:
15 kWh/sq.m-yr heat
120 kWh/sq.m-yr total SOURCE energy
Waterfront Housing:
~66 kWh/sq.m-yr heat
~265 kWh/sq.m-yr total SOURCE energy
Energy Balance, Inc.

89. Energy Audit – Digging Deeper
Getting the EKG!
Mechanical assessment (re-commissioning)
Electrical loads:
Apartment lighting, appliances, other
Common lighting, office equipment,
elevator, outdoor lighting, other
Envelope
Energy Balance, Inc.

90. Energy Audit – Digging Deeper
Getting the EKG!
Waterfront Apartments
Natural Gas Use
Heat, therms/yr 7,905
Domestic Hot Water, therms/yr 2,640
Total therms/yr 10,545
Btu/sq.ft.-dday heat only 2.33
Avg gas cost/apt-month $ 22.70
Avg gas cost/apt-year $ 272
Btu/sq.ft.-yr 26,363
Energy Balance, Inc.

91. Energy Audit – Digging Deeper
Getting the EKG!
Waterfront Apartments
Electricity Use
Electricity, apt's only kWh/yr 96,000
Electriciy, house meter 106,000
Total kWh/yr 202,000
Avg monthly tenant electric bill $ 19.46
Cost of house meter/apt $ 25.21
kwh/sq.ft.-yr 5.1
Energy Balance, Inc.

92. Energy Audit – Digging Deeper
Getting the EKG!
Waterfront Apartments
House meter breakdown
common lights 43,000
ventilation fans 30,000
cooling vent air 7,000
heating pumps 9,000
elevator 9,000
fire pump 611
controls and other 8,000
Total 106,611
Energy Balance, Inc.

93. Energy Audit – Digging Deeper
Getting the EKG!
Energy Balance, Inc.

94. Energy Audit – Digging Deeper
Getting the EKG!
Energy Balance, Inc.

95. Energy Audit – Envelope
Air
leakage
Insulation
Windows
Doors
Energy Balance, Inc.

96. Energy Goals
Energy Balance, Inc.

97. Energy Goals
100
90 Biomass
Percent of current Energy Use
80
PV
70
Conventional
60 Energy
50
40
30
20
10
0
Business as Stop “Cost Avoidance Affordable Perpetually Carbon Net zero
usual shooting effective” of future fuel for next X affordable neutral
yourself in investments shock risk years
the foot in energy
Energy Balance, Inc.

98. Energy Goals
100 30% to 50% solution
90
Biomass
Percent of current Energy Use
80
PV
70
60 Conventional
Energy
50
40
30
20
10
0
Business as Stop “Cost Avoidance of Affordable Perpetually Carbon Net zero
usual shooting effective” future fuel for next X affordable neutral
yourself in investments shock risk years
the foot in energy
Energy Balance, Inc.

99. Energy Goals
100
90
Micro-load solution Biomass
Percent of current Energy Use
80
PV
70
60 Conventional
Energy
50
40
30
20
10
0
Business as Stop “Cost Avoidance of Affordable Perpetually Carbon Net zero
usual shooting effective” future fuel for next X affordable neutral
yourself in investments shock risk years
the foot in energy
Energy Balance, Inc.

100. Putting Together a Green Project
Design team, consultants and builder
selection critical!
Allow some additional time
Willing and experienced? At least
willing!
Green champion critical!
Green Geek necessary
Energy Balance, Inc.

101. Putting Together a Green Project
Design team, consultants and builder
selection critical!
Check actual energy consumption of
projects completed by design team
members
Past performance best indicator of
future performance
Energy Balance, Inc.

102. Putting Together a Green Project
Early budgeting with cost and savings
projections
During schematic design
Pick a package of improvements
Avoid death by 1,000 cuts
Energy Balance, Inc.

103. Putting Together a Green Project
Why not look at
First year rate of return?
Payback?
Cash flow
Use cash flow to minimize total
investment + operating costs over time
Energy Balance, Inc.

104. Putting Together a Green Project
Proforma budget with cash flow
Cash Flow Typical Upgrade
At LOW fuel escation rate
$70,000 Energy Cost without improvements, first year
$18,000 Energy cost savings, first year
$220,000 total cost of improvements; all borrowed
8.00% loan rate, fixed
20 year term
$22,000 annual payment
5% Fuel escalation rate, low,above inflation
15% Fuel escalation rate, high, above inflation
0% Inflation rate
Energy Balance, Inc.

105. Proforma budget with cash flow
At LOW fuel escation rate
No Improvements With all recommended improvements
Year Energy Cost Loan payment Energy Cost Total Net
1 $70,000 $22,000 $52,000 $74,000 ($4,000)
2 $74,000 $22,000 $55,000 $77,000 ($3,000)
3 $78,000 $22,000 $58,000 $80,000 ($2,000)
4 $82,000 $22,000 $61,000 $83,000 ($1,000)
5 $86,000 $22,000 $64,000 $86,000 $0
6 $90,000 $22,000 $67,000 $89,000 $1,000
7 $95,000 $22,000 $70,000 $92,000 $3,000
8 $100,000 $22,000 $74,000 $96,000 $4,000
9 $105,000 $22,000 $78,000 $100,000 $5,000
10 $110,000 $22,000 $82,000 $104,000 $6,000
11 $116,000 $22,000 $86,000 $108,000 $8,000
Energy Balance, Inc.

106. Proforma budget with cash flow
Annual Energy + Debt Service Costs
$300,000 (20 yr, 8% loan), Typical Upgrades
No improvements, 5% Fuel Escalation
$250,000
with improvements, 5% Fuel escalation
$200,000
No improvements, 15% Fuel Escalation
with improvements, 15% Fuel escalation
$150,000
$100,000
$50,000
$0
1 2 3 4 5 6 7 8 9 10
Year
Energy Balance, Inc.

107. Putting Together a Green Project
Include intangible benefits
Health benefits
Less stress on allergies, asthma
Energy Balance, Inc.

108. Putting Together a Green Project
Include intangible benefits
Health benefits
Stewardship/environment
al benefits
Green building on the
continuum between land
conservation and
affordable housing
Carbon reduction
Energy Balance, Inc.

109. Putting Together a Green Project
Include intangible benefits
Health benefits
Stewardship/environmental benefits
Lower liability risk
Energy Balance, Inc.

110. Putting Together a Green Project
Include intangible benefits
Community image
Energy Balance, Inc.

111. Putting Together a Green Project
Include intangible benefits
Community image
Insulation from rate shock
Energy Balance, Inc.

112. Putting Together a Green Project
Include intangible benefits
Community image
Insulation from rate shock
Preparation for uncertainty of long
term fossil fuel availability
Energy Balance, Inc.

113. Neww to Green Projects?
Work your way into green gradually –
pick a good starting point and pick your
battles
Small project, or a few features in a
larger project
Case studies can be very powerful
Energy Balance, Inc.

114. Developing a Workplan
Each phase supports the eventual
goal
Can do renewables first and
conserve as those opportunities
present. Order not critical
Energy Balance, Inc.

115. Developing a Workplan
Match plan to goals
Phasing: plan for implementation
over appropriate time frame
Energy Balance, Inc.

116. Developing a Workplan
Match plan to goals
Phasing: plan for implementation
over appropriate time frame
Take best advantage of
opportunities as they come – repairs
needed, expansion, money that is out
there.
Energy Balance, Inc.

117. Developing a Workplan
Match plan to goals
Phasing: plan for implementation
over appropriate time frame
Take best advantage of
opportunities as they come
Put efficiency work in context:
Maintenance, current and
deferred
Other renovations
Energy Balance, Inc.

118. Developing a Workplan
Each time a part of the building is
worked on, bring that part up to
standards for eventual goal for
entire building
Energy Balance, Inc.

119. Vermont Studio Center
Present Value of Thermal Energy Costs + Retrofit Costs
at 5% Real Fuel Escalation Rate
$6,000,000
$5,000,000
Retrofit Costs [4]
$4,000,000 30 Year PV of Operating
Costs [5]
$3,000,000
$2,000,000
$1,000,000
$0
No improvements Base case Level 1 Improved Level 2 Best Level 3 Level 2 + 3
Energy Balance, Inc.

120. Putting Together a Green Project
Risk in doing something new – and risk
mitigation
Assess your risks
Know your downsides and how to
recover
Leading edge versus bleeding edge
Energy Balance, Inc.

121. Putting Together a Green Project
Keep your eye on the
ball – competing
interests
Square feet
Time
$$
Energy Balance, Inc.

122. Project Follow-up
On-going tracking – Celebrate
successes, learn from set-backs
Energy Balance, Inc.

123. Energy Tracking over time
Building Power Use (5-month rolling average)
14500
14000
13500
13000
12500
kWh
12000
11500
11000
10500
10000
Feb-05 May-05 Sep-05 Dec-05 Mar-06 Jul-06 Oct-06 Jan-07
Energy Balance, Inc.

124. Energy Tracking over time
PERFORMANCE DATA
Btu/ kWh/
ALL ENERGY SOURCES MMBtu sq.ft.-yr sq.m.-yr
Burlington Cohousing multi-family 1,812 69,000 217
Waterfront Housing multi-family 1,765 39,000 123
Evergreen Place elderly housing 469 27,000 85
Energy Balance, Inc.

125. Taking care of our future
Hedged future energy bills.
Ready for a changing energy world.
Improved tenant health.
Energy Balance, Inc.

126. Celebrate and lead the way
Energy Balance, Inc.