Kane County Energy Plan Update Presentation to the Energy and Environmental Technology Committee Jessica Spanier CNT Energy May 19, 2010
Agenda 1) Kane County Energy Consumption 2) Methodology 3) Metrics 4) What’s next? Slide 2
Boone County McHenry County Lake County Cook County Kane County DeKalb County DuPage County Kendall County Will County La Salle County Slide 3
Kane County Electricity Use (in kWh) 2007 2008 Residential 1,664,588,247 Residential 1,617,248,849 C&I 3,271,827,251 C&I 3,253,629,099 Total 4,936,415,497 Total 4,870,877,948 % split of usage between Residential and C&I – consistent for 2007 and 2008 Percent change Residential -2.93% C&I -0.56% Total -1.35% Residential 34% C&I 66% Slide 4
Potential reasons for changes in consumption from 2007 to 2008 Electricity: Decreased consumption 1) Weather: 2007 summer was hotter than 2008, based on number of cooling degree days (CDD) 2007: 1111 CDD 2008: 828 CDD Example: How to calculate cooling degree days 30 year average: 830 CDD. 1 June 1, 2007: average temperature of 74 ° F Base temperature of a building: 65 ° F 2) Economy Number of cooling degree days: 74 – 65 = 9 1 For the Chicago O’Hare weather station http://cdo.ncdc.noaa.gov/cgi-bin/climatenormals/climatenormals.pl Slide 5
Kane County Natural Gas Use (in therms) 2008 2007 Residential 181,639,334 Residential 164,810,974 C&I 150,546,211 C&I 158,437,043 Total 315,357,185 Total 340,076,377 % split of usage between Residential and C&I – consistent for 2007 and 2008 Percent change Residential 9.26% C&I 4.98% Total 7.27% C&I Residential 48% 52% Slide 6
Potential reasons for changes in consumption from 2007 to 2008 Natural gas: Increased consumption 1) Weather: 2007 winter was warmer than 2008, based on number of heating degree days (HDD) 2007: 6,022 HDD 2008: 6,678 HDD Example: How to calculate heating degree days 30 year average: 6,498 HDD. 1 January 1, 2008: average temperature of 16 ° F Base temperature of a building: 65 ° F 2) Economy Number of heating degree days: 65 – 16 = 49 1 For the Chicago O’Hare weather station http://cdo.ncdc.noaa.gov/cgi-bin/climatenormals/climatenormals.pl Slide 7
4 step aggregation method 1) Single county zip codes 2) Geocoding and mapping 3) Townships 4) Fraction of municipal land area in the county Slide 8
Step 1: Single county zip codes (one example) Kane County 60175 Slide 9
Step 2: Geocoding and mapping (one example) Kane County DeKalb County 60151 Slide 10
Step 2: Geocoding and mapping (one example) Kane County DeKalb County 60151 Slide 11
Step 2: Geocoding and mapping (one example) Kane County DeKalb County 60151 DeKalb County Kane County Slide 12
Step 3: Townships Hampshire Rutland Dundee Elgin Plato Burlington St. Charles Campton Virgil Geneva Blackberry Kaneville Batavia Aurora Sugar Grove Big Rock Slide 13
Step 4: Fraction by municipal land area (one example) Kane County Cook County Elgin Slide 14
Usage aggregated by method % of electricity use appropriated by method Residential C&I 1) Single county zips 64% 53% 2) Geocoding and mapping 34% 43% 3) Townships 2% 3% 4) Fraction of municipal area <1% <1% Residential C&I % of gas use appropriated by method 1) Single county zips 60% 50% 2) Geocoding and mapping 38% 37% 3) Townships* 0% 0% 4) Fraction of municipal area 2% 13% *Nicor does not identify townships in Kane County in data Slide 15
Municipal Utilities – Thank you for giving us data! Saint Charles Geneva Batavia Slide 16
Average account consumption 2007 Average Consumption/Cost* (residential only) Natural gas (in therms) Electricity (in kWh) Residential 1,089 ($966) 9,689 ($1042) C&I 10,509 89,944 2008 Average Consumption/Cost* (residential only) Natural gas (in therms) Electricity (in kWh) Residential 1,200 ($1218) 9,345 ($1081) C&I 10,941 87,266 *Illinois Commerce Commission Electricity and Natural Gas Sales Statistics, 2007 and 2008 (increase in rates for both utilities) Slide 17
Individual Municipality Consumption 1) Total electricity/natural gas consumption 2) Average Consumption 3) Useful to compare to county average & similar municipalities 2007 Average Consumption Gas (in therms) Electricity (in kWh) Residential 1,089 9,689 C&I 10,509 89,944 2008 Average Consumption Gas (in therms) Electricity (in kWh) Residential 1,200 9,345 C&I 10,941 87,266 Slide 18
Forecast to 2040 – Business as usual Residential C&I Electricity Gas Electricity Gas (kWh) (therms) (kWh) (therms) 2008 consumption 1,617,248,849 181,639,334 3,253,629,099 158,437,043 Growth factor 1 0.49% -0.57% 0.44% 0.24% Projected 2040 1,889,025,035 151,285,016 3,747,267,064 170,904,954 consumption 1 From the 2010 EIA Annual Energy Outlook - http://www.eia.doe.gov/oiaf/aeo/index.html Slide 19
What’s Next 1) Strategies to reduce energy consumption • Provide details on energy conservation measures; how they work; financial/political feasibility • Categorized by building sector; County corridor (Urban Renaissance; Critical Growth; or Rural) • Examine potential for energy savings countywide at varying implementation levels; and at individual household/business level 2) Recommendations • For implementation and moving forward • Categorized by municipalities; county; utilities; joint action Slide 20
What’s Next 3) Set of 2040 Energy Forecasts • Business As Usual • Aggressive Will be based (aggressive action towards increasing energy efficiency) on a mix of • Moderate strategies (moderate action towards increasing energy efficiency) defined in the • Limited plan (limited action towards increasing energy efficiency) Slide 21
Thank you! Jessica Spanier, LEED AP Research Associate jspanier@cntenergy.org (773) 269-4038 Lindy Wordlaw, AICP Senior Planner lindy@cntenergy.org (773) 269-4012 Slide 22
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