Sustainable Decisions
How NLR is Developing a Plan for the Future
Mike Russ, General Manager, North Little Rock Electric
Department - mruss@northlittlerock.ar.gov
Dr. Marty Matlock, Professor, University of Arkansas mmatlock@uark.edu
Take Away
Sustainability Planning
(Setting Goals for Carbon Management)
• Pull a number out of the air
• One up another city
• Based upon incomplete analysis
• Based upon defensible analysis
Sustainability Planning
(Must Answer Four Questions)
• Economics (Costs) to Citizens
• Economics (Costs) to Government
• Technical Feasibility & Acceptance
• GHG Implications
Program Potential Matrix
Not technically
feasible
Technical Potential
Not technically
feasible
Not cost
effective
Not technically
feasible
Not cost
effective
Market and
adoption
barriers
Not technically
feasible
Not cost
effective
Market and
adoption
barriers
Economic Potential
6
Achievable Potential
Program design,
budget, staffing, and
time constraints
Program
Potential
The Green Agenda Committee
Mayor/
Council
Mayor/Council:
Establishes policy
Resource
Team
Resource Team:
Provide
specialized/technical
expertise
Green Agenda
Committee
GAC MEMBERS:
Represent key constituencies
• Large electric users
• Low-income
• Environmental groups
• Gas/water utilities
• Engineering
• Real estate/developers
• Civic leadership
• Education
• Healthcare
• Media/Communications
• Neighborhood coalitions
• Hispanic community
• Seniors
• etc.
2008 Carbon
Emissions Baseline
Wastewater
15,041
Residential
Energy Use
201,982
Transportation
409,238
Commercial
& Industrial
Energy Use
412,486
In metric tons Co2e
About NoKoSe
• Native American woman owned sustainability
consulting company
• Principle Owner – Stephenie Foster, BA-Arch
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Marty Matlock, Ph.D., P.E., B.C.E.E.
Steve Patterson, Ph.D.
Greg Thoma, Ph.D., P.E.
Zak Johnston, EIT
Heather Sandefur, EIT
Eric Cummings, EIT
Goals and Objectives
GOAL: GAC will develop a greenhouse gas reduction strategy for NLR
OBJECTIVES:
1. Develop a benchmark for GHG emissions using the ICLEI
Protocol (modified).
2. Explore GHG reduction strategies for NLR across sectors
(transportation, commercial/industrial, residential, etc.).
3. Develop a strategy for achieving GHG reductions that
support the goals and values of NLR.
ICLEI 5 Milestone Process
ICLEA Scope Definitions
• Scope 1: All direct emissions from sources located within
the geopolitical boundary of the local government.
• Scope 2: Indirect emissions associated with the
consumption of purchased or acquired electricity, steam,
heating, and cooling. Scope 2 emissions occur as a result of
activities that take place within the geopolitical boundary of
the local government, but that occur at sources located
outside of the government’s jurisdiction.
• Scope 3: All other indirect or embodied emissions not
covered in Scope 2 that occur as a result of activity within
the geopolitical boundary.
Benchmark Assessment
Sector
Residential
Scope 1
Scope 2
Scope 3
TOTAL
76,440
125,542
0
201,982
Commercial / Industrial
145,127
267,359
0
412,486
Transportation
409,238
0
388,083
797,321
0
0
4,578
4,578
15,041
0
0
15,041
TOTAL
645,846
392,901
392,661
1,431,408
Percentage of Total CO2e
45.12%
27.45%
27.43%
100%
Waste
Wastewater
Transportation Assessment
Potential
Potential
Reduction
Reduction
(MT CO2e)
(%)
Signal Light Optimization
15,000
2.3
H
2.3
Reduce Road Miles
24,000
3.7
M
1.85
CNG Fueling Station for Light Trucks
1,600
0.25
H
0.26
850
0.13
H
0.13
Total
6.38
Activity
Street light Upgrades
Adoption
Predicted
Probability Impact (%)
4.54
Commercial/Industrial
Assessment
Activity
Lighting EECBG Rebate
(@ 25% acceptance rate)
HVAC EECBG Rebate
(@ 25% acceptance rate)
Cool Roofs
Potential
Reduction
(MT CO2e)
Potential
Adoption
Predicted
Reduction (%) Probability Impact (%)
4,770
0.7
M
0.35
unknown
unknown
unknown
unknown
25,834
4.0
L
1.0
Total
4.7
1.35
Cool Roof – Future Potential
Sector
Residential
Commercial/Industrial
NLR
Electricity
Consumption
(MMBtu)
Estimated
Cooling
Load
(MMBtu)
1,084,314
2,711,099
325,294.20
813,329.70
Estimated
Reduction
from Cool
Roofs
(MMBtu)
97,588.26
243,998.91
Estimated
Reduction in Scope
1 Footprint
2%
4%
Residential Assessment
Activity
Refrigerators EECBG Rebate
Potential
Reduction
(MT CO2e)
3,229
Potential
Reduction
(%)
0.5
Adoption Predicted
Probability Impact
(%)
M
0.25
646
0.1
M
0.05
646
0.1
M
0.05
12,917
2
L
0.5
Total
2.7
(@ 25% acceptance rate)
HVAC Replacement EECBG Rebate
(@ 25% acceptance rate)
HVAC Maintenance EECBG Rebate
(@ 25% acceptance rate)
Cool Roofs
0.85
Urban Forest Assessment:
Carbon Sequestration
•
36.2% canopy cover in NLR
city limits
•
57,000 metric tons CO2/year
•
4% of total NLR community
emissions, and 8.8% Scope 1
emissions
•
Actively taking up CO2 each
year, accountable
Urban Forest Assessment:
Shade
•
Simulated total energy
savings from the NLR urban
forest averaged 196,585,440
kWh/year
•
Results based on 25,000
occupied housing units
•
Corresponds to 75,200 MT
CO2/year
•
Represents avoided energy
consumption, pre-existing
services not countable
Summary Assessment
Accomplishments
(Outdoor Lighing)
LED Street Lights now
approved by AHTD
3 year LED conversion
Accomplishments
Accomplishments
Sustainability Planning
(Next Steps)
• New Manager Sustainability
• Approval of GAC
• Approval of City Council
• Implement, Check, and Adjust
Questions