2_Renewable Energy Mapping and PolicySustainable Dubuque:
Renewable Energy
Mapping and Policy
Nick Benson, Robyn Fennig
Michael Beach, Andrew Bennett,
Adam Gebhart, Eric Isaacs, Yana Li,
Hannah Papineschi, & Michele Vitale
Faculty Advisor: Dr. Scott Spak
Iowa Initiative for Sustainable Communities
Tuesday May 8, 2012
LDUBUQUE SUSTAINABLE
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School of
Urban &
Regional
Planning
Renewable Energy Mapping and Policy in Dubuque, Iowa
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GreaterDubuque
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Project Scope
Map ON-SITE energy
production capacity
Solar
Wind
Ground Source Heat
Pump
Return on Investment (ROI)
optimization
Business energy demand
sampling
Residential demand
Policy analysis
Spatial extent of the project:
City Limits of Dubuque, Iowa
Map by Mike Beach
Renewable Energy Mapping and Policy in Dubuque, Iowa 2
Building an Urban-Scale Methodology
Innovations
In Model
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• Geophysical
analysis
• Optimizes site-
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• Dubuque- specific
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Solar Mapping
Adapting Existing Methodology
Incoming Solar
Radiation
kWhlm2 /day
❑ <2.50
❑ 2.51 - 3.75
3.76 - 4.75
4.76 - 5.50
> 5.50
Wind Mapping
Pioneering an Urban Methodology
Mean Wind Speed
meters I second
<1
1.01 - 1.75
1.76 - 2.00
2.01 - 2.25
2.26 -2.75
2.75
Ground Source Heat Pump Mapping
Vertical Loop
Tonnage per Parcel
0 -1
2 -3
4 -5
6 -7
>s
• LUST Site
LUST Buffer
(1.000 feet)
a
Business Energy Demand Sampling
Renewable Energy Mapping and Policy in Dubuque, Iowa
Sample Business Report
THIS IS JUST A
SAMPLE REPORT
SPECIFIC
BUSINESS DATA IS
CONFIDENTIAL
RETURN ON INVESTMENT
Technology
Solar Photovoltaic
(PV) Panels
Solar Thermal vs.
Conventional Gas Wa-
ter Heater
Solar Thermal vs.
Conventional Electric
Water Heater
Wind Energy ROI
Benefit -Cost Ratio
Capacity Generated
Capital Cost of
Optimal System
25,000 kWh
2.23 10000 gal 520,W0
156 10,000 gal $15;
0.75 15,00 KwH 82,500
Our return on investment model optimizes the best nix of renewable energy, sized and scoped to
meet the needs of each parcel. We do this by inputting various parameters into an investment work-
sheet that we created based on input parameters (i.e. Energy Information Administration, interest
rates, energy rates), technology information (i.e. vend turbine information), and demand information.
We chose to use Excel because it is a program that our clients at the GDDC can update and work with
even after we graduate. The worksheet calculates energy demand and creates an output. The output
reflects parcel-specific casts and benefits for every parcel in Dubuque- The above table includes data
from this ROI procedure. By providing Won-nation to our group, you have adjusted our model to re-
ceive a more precise analysis.
Renewable Energy Mapping and Policy in Dubuque, Iowa 8
ROI - Procedure
Cons
- Technolog
- Maintenar
- Energy Inf
Administration Datul
Constants [ Data Imported from GIS
- Technology costs — - Parcel Information
- Maintenance costs a - Renewable energy capacity
- Energy Information .e - Building footprint
Administration Data u - Building height
I - Building heigh
Variables
- Interest rates
- Energy rates (kW /h)
I/ - Tax credit rates
- Time frames
Iles
s (kW /h)
rtes
I- Ti ii9 frames
Data Output Worksheet
C(
- Capital ( _
- Mainten, -
- Non -ren
Data Output Worksheet
Costs
Capital costs
Maintenance costs
Non - renewable
energy costs
- Residual net capital
energy costs
- Residual net capital
Benefits
Tax Credit
r Energy bill savings
- Carbon emission
reductions
eauctlons
Parcel Level Data
- Annual Costs
- Annual Savings
- Benefit -Cost Ratio
(BCR)
- Rate of Return
Ratio (BCR)
- Rate of Return
/el Data
ngs
S Interactive Web - Enabled Map
Displays parcel -level data for all areas within city limits of Dubuque, Iowa
Renewable Energy Mapping and Policy in Dubuque, Iowa 9
Return on Investment: Solar PV Panels
Solar PV Panel
Benefit -Cost Ratio
0.00 - 0.50
0.51 - 0.75
0.76 -1.00
> 1.00
Rol: Solar Thermal Technology
Corn • ared to Conventional Gas Water Heater
Solar Thermal
Benefit -Cost Ratio
0.00 - 0.50
0.51 - 0.75
0.76 -1.00
> 1.00
ROI : Solar Thermal Technology
(Conventional vs. High Efficiency Gas Water
Heater)
ROI vs. High
Efficiency Gas
Water Heater
Solar Thermal
Benefit -Cost Ratio
0.00 - 0.50
0.51 - 0.75
0.76 -1.00
> 1.00
ROI : Solar Thermal Technology
(Conventional vs. High Efficiency Electric Water
Heater)
High Efficiency
Electric Water
Heater
Solar Thermal
Benefit -Cost Ratio
0.00 - 0.50
0.51 - 0.75
0.76 - 1.00
> 1.00
Renewable Energy Zoning and Historic
Preservation
Dubuque Historic
Preservation:
Districts & Landmarks
I—+-1 r
* Building/Landm ark
District
cathedral District
- Jackson Park
Langworthy
Old M ain
- W 11th
7
t
— Road
Water
Dubuque
Historic Preservation Districts and Landmarks located
near Downtown Dubuque, and will likely see lower
variability in solar and wind capacity.
Renewable Energy Mapping and Policy in Dubuque, Iowa
Reduce regulatory
barriers in Dubuque
Reclassify small
scale turbines as
accessory uses
Recommend ways
to minimize impact
of renewables on
historic character of
Dubuque
16
Historic Preservation - Recommendations
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Place solar
panels flush with
sloped rooflines
�t'dgn- listed- historic - buildings - should- it- be.html
17
Who Has Access to Renewables?
Average Daily Solar Capacity
kW hou rs /Day
42 -44
40 -41
36 -39
Median Household Income
2010 American Community Survey
• S16,979 - 538.000
• S38.001 -558.000
S58.001 - S86.000
City of Dubuque
Census Block Group
• LUST Buffer Site
Miles
05 1 15 2
Who Has Access to Renewables?
Average Wind Speed
Meters / Seconds
2.1 -2.3
2.4 -2.5
26
I J27 -29
30-34
Median Household Income
2010 American Community Survey
• 516.979 - 538.000
• 538.001 - 558.000
• 558 001 - 586 000
City of Dubuque
Census Block Group
05 1 15 2
Critical Facilities Policy Analysis
Climate change impacts
disaster services demand
Critical facilities must
maintain services or
become operational ASAP
after hazard event
Calculate energy usage
(based on national data)
Can energy capacity help
meet the demand if
systems are down?
Create increased
resiliency, decreased
Critical Facilities in Dubuque:
Public Safety & Response
• Cntical Facilities
Q Corporate Limits
vulnerability Critical facilities are dispersed throughout the city,
and will see greater variability in wind and solar
Decrease daily operating capacity based on location.
costs
Renewable Energy Mapping and Policy in Dubuque, Iowa
20
Findings: Dubuque Police Station
Located Downtown
Demand determined by
Energy Information
Administration
Regional Demand Data
for Police /Fire Stations
Incoming S
Radiatioi
kWh /m2 /da
< 2.50
El 2.51 - 3.75
El 3.76 - 4.75
✓ 4.76 - 5.50
■ > 5.50
Percent Energy Consumption
(S on)
ffice Computer
Eq ipment, Use, 0.77%
24%
F efrig ation,
1.4
Lighting,
8.34%
ROI =1 01
ROl N. 18 31
Water
Heating,
24.65%
Heating
52.39°
Ventilation,
6.04%
Image Source: Google Maps
Cooling,
21
G reaterDubuque
Questions? n
Comments?
LI'DUBUQUE SUSTAINABLE
THE H
UNIVERSITY
OF IOWA
School of
Urban &
Regional
Planning
Renewable Energy Mapping and Policy in Dubuque, Iowa