section3description Of Planning Zones

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1 section3description Of Planning Zones Year ransmission Assessment A utilizes the concept of planning zones in its Assessment of the transmission system within its service territory. Five planning zones have been defined representing distinct areas within which transmission system needs are compiled and assessed. As described in Section I, zone level planning is one of four levels at which transmission system needs are assessed and potential solutions developed. A s five planning zones are shown in Figure III-1. he population history and projection demographic data for each of the zones below was obtained from the Wisconsin Department of Administration and the Michigan Information enter s State Budget Office. he employment demographic data for each of the zones below was obtained from Woods and Poole. Zone 1 he physical boundaries of Zone 1 and transmission facilities located in Zone 1 are shown in Figure III-2. Land use in Zone 1 is largely rural, including agricultural and forested areas. Zone 1 typically experiences peak demands during the summer months, with some winter peaks appearing in the northern portion. Primary electricity users in Zone 1 include a number of large paper mills and food processing plants. Demographics he population of the counties comprising Zone 1 grew at an annual rate of 1% from 1990 to 1995 and at an annual rate of 0.9% from he highest growth rates occurred in Marquette ounty, though the highest increase in population occurred in Marathon ounty. During those same two periods, employment growth rates in Zone 1 were 2.4% and 1.7%, respectively. he highest growth rates occurred in Adams ounty, though the highest increase in employment occurred in Marathon ounty. Future Growth Projections Population in Zone 1 is projected to grow at 0.3% annually through 2005 and at 0.3% from 2005 through Marathon ounty is projected to realize the highest growth in population while Portage ounty is projected to have the highest population growth rates. Employment in zone 1 is projected to grow at 1.1% annually through 2005 and at 1.2% from 2005 through Marathon ounty is projected to realize the highest growth in employment, while Adams ounty is projected to have the highest employment growth rates. Environmental onsiderations his planning zone covers the central and north-central portions of the state and spans a wide range of ecological landscapes varying from the Northern Highland and North entral Forest regions in the northern part of the Zone through the Forest ransition, entral Sand Plains and entral Sand Hills regions to the Western oulee and Ridges region in the southern portions of the zone. Descriptions of the characteristics of each of these ecological landscapes may be found on the Wisconsin Department of Natural Resources Web site at org/land/er/publications/cw/ecological_landscapes.asp. he northern portion of the zone contains numerous lakes and woodlands while the southern portions are more agricultural in nature. Lands in this zone are primarily located in the Upper and entral Wisconsin River drainage basins with smaller portions of the zone located in the Fox and Wolf River drainage basins. he Necedah and Fox River National Wildlife Refuges and a small portion of the Nicolet National Forest are located in this planning zone. Several Indian Reservations are located in this zone. Electricity Demand and Generation he coincident peak load forecasts for Zone 1 for 2004, 2008 and 2012 are shown in able III-1. Existing generation along with proposed generation based on projected in service year are also shown. he resultant difference between load and generation with or without the proposed generation is shown as well. able III-1 Forecast of Peak Load and Generation in Zone Peak Load Forecast (megawatts) Average Peak Load Growth N/A 1.73% 1.47% Existing Generation apacity (megawatts) Existing apacity Less Load (megawatts) Existing Generating apacity plus Modeled Generating apacity Additions (megawatts) Modeled apacity Less Load (megawatts) Modeled generating capacity additions in the table above reflect those proposed capacity additions that were included in the 2003 Assessment analyses models, as listed in Section II under New Generation Assumptions. he table above shows that load is projected to grow at roughly 1.6% annually from 2004 through omparing load with generation (at maximum output) within the zone indicates that Zone 1 is a net importer of power during peak load periods.

2 ransmission System Issues Key system performance issues in Zone 1 include: he load serving capability of the 115 kv loop in northern Zone 1 (Rhinelander Loop), including voltage stability he load serving capability of the 138 kv and 69 kv network in southern Zone 1 Reclosure angle on the Eau laire-arpin 345 kv line. his issue can limit the allowable flow on this line. Stability issues can come into play if the reclosure angle is too large after a trip of this line. Operating guides for lower voltage facilities for loss of either the Eau laire-arpin or Arpin-Rocky Run 345 kv lines. In particular, the Monroe ounty-ouncil reek 69 kv line and the orners- Wien 115 kv line are susceptible to tripping for loss of the Eau laire-arpin 345 kv line. For the loss of the Arpin-Rocky Run 345 kv line, the 138 kv system south of Arpin and the 115 kv system north of Arpin are susceptible to overloads. hese conditions strain the load serving capability of the network in Zone 1. he outage of the Weston Unit 3 generator can result in potential voltage collapse and system instability in the area and can aggravate the Eau laire-arpin flow limit issues. here are three large potential generation projects that have requested interconnection studies in Zone 1 and one that has requested transmission service. he magnitude of the generation is such that there could be significant impacts on the system in the area, that is, the need for additional transmission outlets to accommodate these projects are identified in Section VIII. However, additional analyses will be required to address the cumulative impact of these proposed projects should they come to fruition, including the upgrades needed to allow delivery of the combined output of these projects to customers. Figure III-1 A ransmission Planning Zones Houghton LAKE SUPERIOR Marquette Sault Ste. Marie Ishpeming Eagle River Florence Iron Mountain Escanaba Rhinelander 23 Merrill Marinette GREEN BAY Wausau Sturgeon Bay Kewaunee Marshfield Green Bay Arpin De Pere Wisconsin Rapids Appleton wo Rivers Manitowoc Zone 1 Oshkosh Lake Winnebago Zone 2 Richland enter Baraboo Madison Ripon Fond du Lac Sheboygan Waupun Beaver Dam Waukesha Brookfield LAKE MIHIGAN Zone 3 Zone 4 Zone 5 Mukwonago Milwaukee Platteville Monroe Janesville Whitewater Racine Beloit Kenosha S. Beloit Full Report September 2003

3 10-Year ransmission Assessment 24 Figure III-2 Zone 1 - Existing ransmission Facilities Key Key for for Recently Recently ompleted ompleted ransmission System System Ashland Ashland Modifications Iron Iron W I S O N S I N W I S O N S I N 1 1 Sawyer Sawyer New New Substation Substation 4 4 M I H I G A N M I H I G A N 2 2 Substation Substation Modifications ransformer ransformer Vilas Vilas S. GERMAIN S. GERMAIN LEAR LAKE LEAR LAKE RANBERRY RANBERRY HREE LAKES HREE LAKES Florence Florence apacitor apacitor Bank Bank -D -D 3New -D 3 5 -D 5 Interconnection Price Price New New ransmission Line Line Rebuilt Rebuilt ransmission Line Line or or Voltage Voltage onversion onversion Oneida Oneida HIGHWAY 8 HIGHWAY 8HODAG HODAG VENUS VENUS Forest Forest GOODMAN GOODMAN Marinette Marinette Rusk Rusk EASOM EASOM SKANAWAN SKANAWAN FOX FOX HILLS HILLS SILVER LIFF SILVER LIFF SUMMI LAKE SUMMI LAKE Lincoln Lincoln Langlade Langlade aylor aylor PINE PINE BUNKER BUNKER HILL HILL BLAKBROOK BLAKBROOK AURORA S AURORA S MOUNAIN MOUNAIN Oconto Oconto WIEN WIEN HILLOP HILLOPWAUSAU AEL AEL SHERMAN S SHERMAN S DEER RAIL DEER RAIL Menominee Menominee Marathon Marathon KELLY KELLY WESON WESON lark lark SRAFORD SRAFORD MMILLAN MMILLAN WILDWOOD HUME WILDWOOD HUME WESON 345KV WESON 345KV DEWEY DEWEY (ALE/WE) (ALE/WE) ROSHOL ROSHOL WHIOMB WHIOMB Shawano WHIE LAY Shawano WES SHAWANO WHIE LAY WES SHAWANO EAS SHAWANO EAS SHAWANO AROLINE AROLINE BADGER BADGER LINONVILLE LINONVILLE Jackson Jackson OUNIL REEK OUNIL REEK Monroe Monroe ARPIN ARPIN NORHPOIN NORHPOIN LAWN ROAD LAWN ROAD ROKY RUN HOOVER IOLA ROKY RUN HOOVER IOLA SIGEL SIGEL WHIING AVE WHIING AVE ARNO ARNO Waupaca PLOVER Waupaca Wood PLOVER Wood Portage Portage HINZ HINZOutagamie OYNE OYNE ELLINGON ELLINGON HARRISON WES WISONSIN RAPIDS GOLDEN SANDS WAUPAA WES WISONSIN RAPIDS GOLDEN SANDS HARRISON WAUPAA NORH APPLEON WEYAUWEGA HYDRO WHIE LAKE NORH APPLEON WEYAUWEGA HYDRO WHIE LAKE POR EDWARDS SARAOGA POR EDWARDS SARAOGA ASALOMA ASALOMAMAES MAES IY LIMIS IY LIMIS BUE DES MORES BUE DES MORES SEI SEI AYO AYO SAND LAKE WOODENSHOE SAND LAKE WOODENSHOE Winnebago Winnebago HANOK WINNEONNE HANOK Waushara WINNEONNE Waushara MEARS ORNERS MEARS ORNERS PEENWELL HYDRO PEENWELL WAUOMA SUNSE POIN PEENWELL HYDRO PEENWELL WAUOMA SUNSE POIN BOWEN S BOWEN S PEARL AVE PEARL AVE OSHKOSH OSHKOSH HAFFEE HAFFEE REEK REEK FIZGERALD FIZGERALD PROGRE AVIAION LINOLN PROGRE AVIAION Adams LINOLN Adams BERLIN BERLIN Juneau MKENNA Juneau MKENNA ASLE ASLE ROK ROK ASLE ROK HYDRO ASLE ROK HYDRO RIPON Green Lake RIPON Green Lake ROEDER MEOMEN NORH FOND DU LA HILLOP Marquette ROEDER MEOMEN NORH FOND DU LA HILLOP Marquette OHMSEAD GREEN LAKE OHMSEAD GREEN LAKE Fond Fond du du Lac LacSOUH FOND DU LA SOUH FOND DU LA Vernon Vernon KILBOURN KILBOURN WAUPUN WAUPUN BUERNU BUERNU Richland Richland Sauk Sauk REEDSBURG REEDSBURG olumbia NORH RANDOLPH RIENDA olumbia NORH RANDOLPH RIENDAPORAGE PORAGE Dodge Dodge Electric ransmission Network & Substations PLANNING Miles Miles urrently, urrently, A A owns owns or or operates operates transmission transmission facilities facilities in in Wisconsin Wisconsin counties counties and and in in Michigan Michigan counties. counties. Facilities Facilities include: include: Approximately Approximately miles miles of of transmission transmission lines lines wholly wholly owned owned substations substations jointly jointly owned owned substations substations Offices Offices in in Madison Madison (2), (2), ottage ottage Grove, Grove, Pewaukee, Pewaukee, De De Pere Pere Wausau Wausau and and Kingsford, Kingsford, MI MI ransmission ransmission Line Line Voltage Voltage 69 kv 138 kv kv kv 138 kv kv # 115 kv 230 kv 115 kv kv $+ $+ 115 kv 230 kv kv 138 kv kv kv kv kv!(!( Non-A Non-A ransmission Lines ransmission Lines " ransmission ransmission Related Related Facilities Facilities A Owned Substation A Office Location A Owned Substation!. A Office Location Joint Owned Substation Assets onveyed Generation Joint Owned Substation -- Assets onveyed A@ Generation Joint Owned Substation Assets Retained Other Facility Joint Owned Substation -- Assets Retained " Other Facility Proposed/Design/onstruction Proposed/Design/onstruction he information presented in this map document is advisory and is intended for reference purposes only. American ransmission ompany owned and operated facility locations are approximate. he he information presented in in this this map map document is advisory and and is is intended for for reference purposes only. American ransmission ompany owned and operated facility locations are approximate. Zone1 11x17.mxd Modified: May 20, 2003 Zone1 11x17.mxd Modified: May 20, 2003

4 Zone 2 he physical boundaries of Zone 2 and transmission facilities located in Zone 2 are shown in Figure III-3. Land use in Zone 2 is largely rural and heavily forested. Zone 2 typically experiences peak demands during the winter months. Ore mining and paper mills are the largest electricity users in the zone. Demographics he population of the counties in Zone 2 experienced no growth from 1990 to 1995 and at an annual rate of 0.4% from 1995 through he highest population growth rates occurred in Keweenaw ounty though the highest increase in population occurred in hippewa ounty. During those same two periods, annual employment growth rates in Zone 2 were 1.4% and 1.3%, respectively. Similar to population growth, the highest employment growth rates occurred in Keweenaw ounty and the highest increase in employment occurred in hippewa ounty. Future Growth Projections Population in Zone 2 is projected to grow at 0.1% annually through 2005 and at 0.2% annually from 2005 through hippewa ounty is projected to realize the highest growth in population and the highest population growth rates. Employment in Zone 2 is projected to grow at 1.4% annually through 2005 and at 1.3% annually from 2005 through Marquette ounty is projected to realize the highest growth in employment while Forest ounty is projected to have the highest employment growth rates. Environmental onsiderations his planning zone includes a small part of the far northeast portion of Wisconsin and the eastern two-thirds of the Upper Peninsula of Michigan. he Wisconsin portions of the zone fall into the Northeast Sands and North entral Forest ecological landscape regions. he portions of the zone located in Michigan are part of the Eastern Upper Peninsula eco-region. A description of the characteristics of the Eastern Upper Peninsula eco-region may be found on the Michigan Department of Environmental Quality Web page at Large expanses of this zone are forested and there are large numbers of streams, lakes and wetlands throughout the zone. he Niagara Escarpment expresses itself in the Eastern Upper Peninsula. Lakes Superior, Huron and Michigan form the northern and eastern boundaries of the zone. wo Michigan State Natural Rivers (Fox and wo-hearted) and eight National Wild and Scenic Rivers (ahquamenon, Indian, Sturgeon, Whitefish, Yellow Dog, Ontonagon, Paint, arp, north Sturgeon) are found in this zone. Portions of the Nicolet, Ottawa, and Hiawatha National Forests and numerous state forests and parks are found in this zone. Several Indian Reservations are found in this zone. he Seney National Wildlife Area, Pictured Rocks National Lakeshore, and numerous Federal wilderness areas also are found in this area. Electricity Demand and Generation he coincident peak load forecasts for Zone 2 for 2004, 2008 and 2012 are shown in able III-2. Existing generation along with proposed generation based on projected in service year are also shown. he resultant capacity margins with or without the proposed generation are shown as well. able III-2 Forecast of Peak Load and Generation in Zone Peak Load Forecast (megawatts) Average Peak Load Growth N/A 0.66% 0.54% Existing Generation apacity (megawatts) Existing apacity Less Load (megawatts) Existing Generating apacity plus Modeled Generating apacity Additions (megawatts) Modeled apacity Less Load (megawatts) Modeled generating capacity additions in the table above reflect those proposed capacity additions that were included in the 2003 Assessment analyses models, as listed in Section II under New Generation Assumptions he table above shows that load is projected to grow at roughly 0.6% annually from 2004 through omparing load with generation (at maximum output) within the zone indicates that Zone 2 has more generation than peak load, though actual operating experience indicates that during most periods, Zone 2 is a net importer of power. ransmission System Issues Key transmission facilities in Zone 2 include the Morgan-Plains and Plains-Dead River 345 kv lines, the Plains-Stiles 138 kv double circuit line and the 138 kv facilities tying the Upper Peninsula of Michigan to the Lower Peninsula. Key system performance issues in Zone 2 include: Limited import and export capability An aging 69 kv and 138 kv infrastructure throughout the Upper Peninsula Generator stability at Presque Isle Power Plant Parallel path flow around Lake Michigan that aggravates heavy loading on the 138 kv and 69 kv systems also aggravating the need for LRs and requiring reconfiguration of the system Low voltages, most pronounced in the western Upper Peninsula 25 Full Report September 2003

5 Figure III-3 Zone 2 - Existing ransmission Facilities Key for Recently ompleted ransmission System Modifications New Substation Ahmeek opper ity Laurium OSEOLA Lake Linden Hubbell Hancock PORAGE Houghton ALANI South Range -D Substation Modifications ransformer ANADA apacitor Bank New -D Interconnection Lake Superior New ransmission Line Rebuilt ransmission Line or Voltage onversion UPPO Ontonagon ONONAGON WINONA MA M-38 Baraga L'Anse VIORIA PORAGE SREE Sault Ste. Marie BRUE ROING PERH LAKE PRESQUE ISLE POWER PLAN DEAD RIVER Marquette Negaunee EDAR Ishpeming Harvey NAIONAL EMPIRE ILDEN Munising MUNISING Newberry ROBERS ORNER HREE MILE NINE MILE REPUBLI--SAE FORES K. I. Sawyer AFB hatham Gwinn FORSYH ROU LAKE PINE RIVER 26 WAEREE NEW GWINN HIAWAHA REXON LAND O LAKES ONOVER WIN LAKE Eagle River S. GERMAIN RANBERRY HREE LAKES WAY PLAN HEMLOK FALLS Mineral Hills Iron River IRON RIVER rystal Falls aspian RYSAL FALLS SAGOLA Gaastra Alpha NORDI PEAVY FALLS FELH BRULE PLAN WIN FALLS Iron Mountain PINE PLAN KINGSFORD Norway Kingsford ARAGON Niagara ARNOLD PERKINS MASONVILLE ORNELL HANDLER Gladstone DELA Escanaba Garden INDIAN LAKE MANISIQUE Manistique BLANEY PARK LOADING DOK URIS A LENINO BREVOR Mackinac Island St. Ignace Lake Huron POIN LEBARBE MGULPIN De our Village Powers POW ERS MIHIGAN Rhinelander GOODMAN HIGHWAY 8 HODAG arney VENUS randon SUMMI LAKE DAVES FALLS AMBERG SILVER LIFF FOX HILLS Wausaukee ALDRON FALLS HALK HILLS ROSEBUSH WHIE RAPIDS Daggett Stephenson GRAND RAPIDS Lake Michigan Miles M I H I G A N 2 W I S O N S I N Electric ransmission Network & Substations PLANNING 2 urrently, A owns or operates transmission facilities in 50 Wisconsin counties and in 15 Michigan counties. Facilities include: Approximately 8900 miles of transmission lines 98 wholly owned substations 358 jointly owned substations A offices in Madison (2), ottage Grove, Pewaukee, De Pere, Wausau and Kingsford, MI ransmission Line Voltage ransmission Related Facilities 69 kv 138 kv # A Owned Substation!. 115 kv 230 kv $+!. A Office Location Joint Owned Substation - Assets onveyed!(!( 138 kv 345 kv Joint Owned Substation - Assets Retained A@ Generation " Proposed/Design/onstruction "" Other Facility Non-A ransmission Lines he information presented presented in in this this map map document is is advisory advisory and and is is intended for for reference purposes purposes only. American ransmission ompany owned and operated facility locations locations are are approximate. approximate Zone2 11x17.mxd Modified: May 28, Year ransmission Assessment

6 Zone 3 he physical boundaries of Zone 3 and transmission facilities located in Zone 3 are shown in Figure III-4. Land use in Zone 3 is largely rural and agricultural. he major population centers are the Madison metropolitan area and the Janesville/Beloit area. Zone 3 typically experiences peak demands during the summer months. Manufacturing, food processing, state government and institutional loads are among the largest electricity users in the zone. Demographics he population of the counties in Zone 3 grew at an annual rate of 1.1% from 1990 to 1995 and at an annual rate of 1.5% from he highest growth rates occurred in Walworth ounty, though the highest increase in population occurred in Dane ounty. During those same two periods, annual employment growth rates in Zone 3 were 2.6% and 2%, respectively. he highest growth rates occurred in Sauk ounty, though the highest increase in employment occurred in Dane ounty. Future Growth Projections Population in Zone 3 is projected to grow at 0.6% annually through 2005 and at 0.5% annually from 2005 through Dane ounty is projected to realize the highest growth in population and the highest population growth rates. Employment in Zone 3 is projected to grow at 1.4% annually through 2005 and at 1.3% annually from 2005 through Dane ounty is projected to realize the highest growth in employment, while Sauk ounty is projected to have the highest employment growth rates. Environmental onsiderations his zone covers the south central and southwestern portions of the state. he ecological landscapes in this zone vary from Southeast Glacial Plains in the east through entral Sand Hills areas to areas that are part of the Southwest Savanna and Western oulee and Ridges landscapes in the west. he eastern portions of the zone are generally level to gently rolling terrain while the western areas are characterized by the ridges and valleys of the driftless area. he northern and western portions of this zone are located in the Lower Wisconsin River Drainage Basin and the Mississippi River forms the zone s western boundary. Other portions of this zone are located in the Grant-Platte, Sugar River-Pecatonica, Upper and Lower Rock and Fox Illinois drainage basins. Horicon Marsh National Wildlife Refuge is located in the northeast part of the zone and the Upper Mississippi River Wildlife and Fish Refuge is located along the zone s western edge. he Baraboo Hills are located in the north-central portion of the zone. he Lower Wisconsin River State Riverway is also found in this zone. Electricity Demand and Generation he coincident peak load forecasts for Zone 3 for 2004, 2008 and 2012 are shown in able III-3. Existing generation along with proposed generation based on projected in service year are also shown. he resultant capacity margins with or without the proposed generation are shown as well. able III-3 Forecast of Peak Load and Generation in Zone Peak Load Forecast (megawatts) Average Peak Load Growth N/A 1.74% 3.40% Existing Generation apacity (megawatts) Existing apacity Less Load (megawatts) Existing Generating apacity plus Modeled Generating apacity Additions (megawatts) Modeled apacity Less Load (megawatts) Modeled generating capacity additions in the table above reflect those proposed capacity additions that were included in the 2003 Assessment analyses models, as listed in Section II under New Generation Assumptions. he table above shows that load is projected to grow at roughly 2.61% annually from 2004 through omparing load with generation (at maximum output) within the zone indicates that Zone 3 has more generation than peak load during peak load periods. However, actual operating experience indicates that during most load periods, Zone 3 is a net importer of power. ransmission System Issues Key transmission facilities in Zone 3 include the olumbia-north Madison 345 kv line, the olumbia-rockdale-paddock- Wempletown 345 kv line and the 138 kv facilities from the Nelson Dewey Power Plant, around the Madison area and in the southeast portion of Zone 3. Key system performance issues in Zone 3 include: Import capability into the Madison area, whether from sources internal or external to the zone. Insufficient 345/138 kv transformer capability in Dane and Rock ounties. Heavily loaded 138 kv facilities in the eastern portion of Zone 3. Heavily loaded 138 kv and 69 kv facilities in the western portion of Zone 3 and associated low voltages. MAPP-Eastern Wisconsin power transfers. he 138 kv and 69 kv facilities in the western portion of Zone 3 can be heavily loaded due to load growth combined with heavy imports from MAPP. Parallel path flows from northern Illinois. he 138 kv facilities in the eastern portion of Zone 3 can be heavily loaded due to significant generation development in northern Illinois. Stability of generation in olumbia and Rock ounty. Low voltages on facilities in Dodge, Green, Jefferson and Sauk counties, in particular. Impact of proposed new generation. 27 Full Report September 2003

7 Figure III-4 Zone 3 - Existing ransmission Facilities haseburg Key for Recently ompleted Westby ransmission System Modifications D New Substation La Farge Viroqua Substation Modifications Vernon Viola ransformer Readstown De Soto apacitor Bank -D New -D Interconnection Soldiers Grove Ferryville Lynxville New ransmission Line Rebuilt ransmission Mount Sterling Gays Mills Line or Voltage onversion Bell enter rawford Boaz Yuba Richland Richland enter Hillsboro Wonewoc azenovia La Valle Ironton Lime Ridge Juneau Loganville Plain Reedsburg REEDSBURG Lake Delton Wisconsin Dells Rock Springs KIRKWOOD West Baraboo Baraboo North Freedom Sauk KILBOURN PRAIRIE DU SA HYDRO Prairie du Sac Sauk ity Adams Merrimac Lodi RIENDA PORAGE DANE Marquette Dane Portage Poynette Pardeeville OLUMBIA ENERGY ENWyocena olumbia Arlington NORH MADISON DEFORES De Forest Rio RIO NORH RANDOLPH ambria Doylestown Green Lake Friesland Fall River AADEMY olumbus Randolph OLUMBUS Fox Lake Lowell Reeseville Waupun WAUPUN NORH BEAVER DAM Beaver Dam SOUH BEAVER DAM Dodge Juneau JUNEAU lyman Horicon Fond du Lac HORION Hustisford Kekoskee Mayville BUERNU Lomira Iron Ridge Brownsville MAYVILLE Neosho heresa SPRING BROOK RUBION ampbellsport AUBURN Kewaskum West Bend Washington S. LAWRENE HARFORD Slinger Hartford 28 Prairie du hien HILLSIDE Bagley Eastman NELSON DEWEY GRAN GRAE Patch Grove Wauzeka Bloomington NELSON DEWEY Miles Steuben Mount Hope assville AVILLE POWER PLAN M I H I G A N 2 Woodman Grant IOWA Boscobel Lancaster BOSOBEL Fennimore Potosi ennyson Blue River LANASER 138KV Dickeyville Platteville Muscoda Montfort Livingston HILLMAN uba ity Hazel Green Highland EDEN Rewey Benton Avoca obb Belmont Linden LONE ROK MINERS Shullsburg Lone Rock Dodgeville Mineral Point Iowa Spring Green Darlington DODGEVILLE Ridgeway ROK BRANH DARLINGON Lafayette SPRING GREEN Gratiot Arena Hollandale Barneveld Blue Mounds Blanchardville Argyle JENNINGS RD South Wayne Mazomanie Browntown ILLINOIS Black Earth Mount Horeb WAUNAKEE Waunakee SYAMORE ross Plains PHEASAN BRANH Maple Bluff SAGEOAH Middleton GAEWAY RUSKIN ottage Grove BLAKHAWK MADISON ROYSER SQUARE WES MIDDLEON Madison Shorewood Hills FEN OAK PLEASAN VIEW WES OWNE WINGRA Monona Dane NINE SPRINGS MOUN HOREB New Glarus Monroe Monticello Verona Belleville NORH MONROE Green SOUH MONROE RO OUNRY VERONA FIHBURG Fitchburg Albany HUISKAMP Oregon Brooklyn Brodhead OREGON YAHARA O LORADO SUN PRAIRIE McFarland Evansville BRODHEAD BIRD SREE Sun Prairie REINER ROAD Stoughton Orfordville BUSINE PARK SOUH Marshall BOXELDER Deerfield OAGE GROVE ambridge KEGONSA ROKDALE ROKGEN Rockdale SOUGHON HRISIANA Edgerton SHEEPSKIN Footville BA REEK Rock RIPP PADDOK Janesville BLAKHAWKBeloit SHAW Waterloo RUELL ROK RIVER MUE Lake Mills Milton VENURE URLE SUNRISE OLLEY ROAD Watertown RAWFISH JEFFERSON Jeffersonferson Jefferson Fort Atkinson linton Johnson reek L.S. POWER Whitewater UNIVERSIY Darien Sharon ONORD WHIEWAER Delavan BRIK HURH Sullivan Palmyra henequa OONEY Oconomowoc Nashotah Oconomowoc Lake Elkhorn ELKHORN Walworth BRISOL Williams Bay Fontana-on-Geneva WALWORH Lake Walworth Lac La Belle SUMMI Delafield DousmanWaukesha Wales Eagle SUGAR REEK North Prairie East roy Lake Geneva MUKWONAGO BARK RIVER Merton Sussex OONWOOD Hartland Mukwonago NORH LAKE GENEVA SOUH LAKE GENEVA Pewaukee Waukesha MERRILL HILLS Racine BURLINGON Burlington KAZENBERG win Lakes Genoa ity W I S O N S I N Electric ransmission Network & Substations PLANNING 3 urrently, A owns or operates transmission facilities in 50 Wisconsin counties and in 15 Michigan counties. Facilities include: Approximately 8900 miles of transmission lines 98 wholly owned substations 358 jointly owned substations A offices in Madison (2), ottage Grove, Pewaukee, De Pere, Wausau and Kingsford, MI ransmission Line Voltage ransmission Related Facilities kv kv kv kv # # A A Owned Substation A kv kv kv kv $+!. A Office Location $+ Joint Joint Owned Substation - Assets - onveyed!( kv kv kv!( Joint kv Joint Owned Substation - Assets - Retained A@ A@ Generation " " Proposed/Design/onstruction " " Other Other Facility Non-A ransmission Lines he he information presented in in this this map map document document is advisory advisory and and is is intended intended for for reference reference purposes purposes only. only. American American ransmission ompany ompany owned owned and and operated operated facility facility locations locations are are approximate. approximate. Zone3 11x17.mxd Modified: May 28, Year ransmission Assessment

8 Zone 4 he physical boundaries of Zone 4 and transmission facilities located in Zone 4 are shown in Figure III-5. Zone 4 land use is a mix of agricultural, forest and urban. Major population centers in Zone 4 include Appleton, Green Bay, Fond du Lac, Sheboygan, Marinette/Menominee and Manitowoc. Zone 4 typically experiences peak demands during the summer months, though the northern portion of Zone 4 typically experiences nearly equal winter peaks. Paper mills and foundries in the Green Bay and Appleton metropolitan areas are some of the largest electricity users in the zone. Demographics he population of the counties comprising Zone 4 grew at an annual rate of 1% from 1990 to 1995 and at an annual rate of 1.2% from he highest growth rates occurred in alumet ounty, though the highest increase in population occurred in Brown ounty. During those same two periods, employment growth rates in Zone 4 were 2.5% and 1.9%, respectively. he highest growth rates and highest increase in employment occurred in Brown ounty. Future Growth Projections Population in Zone 4 is projected to grow at 0.3% annually through 2005 and from 2005 through Brown ounty is projected to realize the highest growth in population, while Menominee ounty is projected to have the highest population growth rates. Employment in Zone 4 is projected to grow at 1.3% annually through Brown ounty is projected to realize the highest growth in employment and the highest employment growth rates. Environmental onsiderations his zone includes lands in the Southeast Glacial Plains, entral and Northern Lake Michigan oastal, and Northeast Sands ecological landscape regions. he area drains towards Lake Michigan via the Milwaukee, Sheboygan, Manitowoc, win-door-kewaunee, Wolf and Lower Fox Drainage Basins. Lake Winnebago and the Fox Valley are located in the central part of this zone. he eastern boundary of the zone is formed by the shorelines of Lake Michigan and Green Bay. he Niagara Escarpment runs through the center of the zone and out the Door Peninsula. Portions of the Kettle Moraine State Forest and the Horicon National Wildlife Refuge are found in the southern end of the zone. Navarino State Wildlife Area and a segment of the Wolf River classified as a Federal Wild and Scenic River are located in the northwest part of the zone. Several Indian Reservations are located in this zone. Electricity Demand and Generation he coincident peak load forecasts for Zone 4 for 2004, 2008 and 2012 are shown in able III-4. Existing generation along with proposed generation based on projected in service year are also shown. he resultant capacity margins with or without the proposed generation are shown as well. able III-4 Forecast of Peak Load and Generation in Zone Peak Load Forecast (megawatts) Average Peak Load Growth N/A 1.38% 2.25% Existing Generation apacity (megawatts) Existing apacity Less Load (megawatts) Existing Generating apacity plus Modeled Generating apacity Additions (megawatts) Modeled apacity Less Load (megawatts) Modeled generating capacity additions in the table above reflect those proposed capacity additions that were included in the 2003 Assessment analyses models, as listed in Section II under New Generation Assumptions. he table above shows that load is projected to grow at roughly 1.81% annually from 2004 through omparing load with generation (at maximum output) within the zone indicates that Zone 4 has more generation than load during peak load periods. Actual operating experience indicates that during lighter load periods, Zone 4 is a net exporter of power. ransmission System Issues Key transmission facilities in Zone 4 include the four 345 kv lines extending from the Kewaunee and Point Beach nuclear units, the 138 kv network in the Green Bay area, the two 345 kv lines extending from the Edgewater Power Plant, the eastern portion of the Rocky Run-North Appleton 345 kv line and the 345 kv lines from South Fond du Lac to olumbia, Edgewater and North Appleton. Key system performance issues in Zone 4 include: Heavily loaded and aging 138 kv facilities in the Green Bay area, north of Green Bay and the Fox River Valley Heavily loaded 138 kv and 69 kv facilities in the Sheboygan area Heavily loaded 115 kv and 138 kv lines west of Green Bay and Appleton and associated low voltages he stability response of the Point Beach nuclear units he limited capability of the system to export power to Michigan s Upper Peninsula, resulting in uneconomic dispatch of generating units 29 Full Report September 2003

9 10-Year ransmission Assessment 30 Figure III-5 Zone 4 - Existing ransmission Facilities Key for Recently ompleted ransmission System Modifications SILVER LIFF FOX HILLS Forest New Substation ALDRON FALLS Substation Modifications Wausaukee Daggett Stephenson GRAND RAPIDS ransformer HUNDER JOHNSON FALLS HYD apacitor Bank Langlade -D New -D Interconnection MOUNAIN New ransmission Line White Lake Rebuilt ransmission Line or Voltage onversion HIGH FALLS SANDSONE RAPIDS HYD Marinette rivitz RIVIZ POUND Pound oleman Oconto BAY DE NO Menominee BAYSHORE ROOSEVEL RD WES MARINEE OGDEN S Marinette Does not depict Peshtigo construction of new SHERWOOD Roosevelt-Wells 138 kv line, operated at 69 kv Sister SISER Bay BAY Ephraim EGG HARBOR Egg Harbor Menominee Suring LENA Lena OONO Door DUNN RD Bowler Gillett Gresham ecil WHIE LAY WES SHAWANO Shawano EAS SHAWANO Shawano Bonduel AROLINE BADGER SILES PIONEER Oconto Falls FALLS MORGAN SOBIESKI Oconto G r e e n B a y FIRS AVE Sturgeon Bay ANAL SAWYER BRUSBAY Forestville Big Falls Marion Embarrass LINONVILLE lintonville Pulaski SUAMIO DYKESVILLE ROSIERE ALGOMA ALGOMA Algoma MAPLEWOOD BAYPOR Howard Nichols VELP AVE asco HOWARD Luxemburg LAWN ROAD OWER DR MASON S LUXEMBURG Bear reek BARNE Seymour LIBERY DANZ AVE KewauneeBOOSER Green Bay FINGER RD Ashwaubenon HIGHWAY V BEARDSLEY S Waupaca Black reek BLUESONE Kewaunee GLORY ROAD DEPERE HIGHWAY V Manawa AllouezMYSERY HILLS EAS KROK WERNER Shiocton De Pere Brown HINZ Outagamie DE PERE RED MAPLE ELLINGON New London LOS DAUPHIN NORH APPLEON KEWAUNEE ENERGY ENER WEARK Denmark WHIE LAKE Hortonville Waupaca WEYAUWEGA HYDRO KAUKAUNA NORH Wrightstown Weyauwega POIN BEAH ASALOMA Little hute MAES Kaukauna Maribel Appleton OMBINED LOKS Kimberly MISHIO Fremont ombined Locks BUE DES MORES IY LIMIS Mishicot Kellnersville MEADOWS AYO KELLNERSVILLE Francis reek SEI MELIA FORES JUNION Menasha NEEVIN Sherwood BRILLION IRON WORKS wo Rivers Neenah Brillion SHOO GLENVIEW WOODENSHOE Reedsville Whitelaw Hilbert NORHEAS Potter Manitowoc RAPIDS MEARS ORNERS Winneconne Manitowoc MANRAP REVERE WINNEONNE MPU POWER PLAN alumet USER Stockbridge Valders DEWEY (MANIOWO) WinnebagoSUNSE POIN BOWEN S GRAVESVILLE S. NAZIANZ Omro PEARL AVE hilton Oshkosh ELLINWOOD St. Nazianz OSHKOSH FIZGERALD PROGRE EUMSEH RD Berlin AVIAION NEW HOLSEIN New Holstein BERLIN leveland Kiel L a k e M i c h i g a n Ripon Green Lake Elkhart Lake Howards Grove Mount alvaryst. loud RIPON ELKHAR LAKE MEOMEN Rosendale North Fond du NORH Lac FOND DU LA ERDMANN Glenbeulah Green Lake Fond du Lac OHMSEAD 20H SREE MULLE RIVER Sheboygan RIVERSIDE Fond du LacSOUH FOND DU LA Plymouth Fairwater Kohler LODESAR Brandon NORH MULLE RIVER EDGEWAER GENERAING SOUH FOND DU LA Markesan Sheboygan SOUH SHEBOYGAN FALLS Eden Oakfield Waldo ascade WAUPUN W I S O N S I N Oostburg Waupun Adell Brownsville BUERNU 1 ampbellsport Lomira RANDOM LAKE edar Grove AUBURN Fox Lake Random Lake Dodge Randolph Kekoskee heresa Kewaskum Ozaukee 3 MAYVILLE Washington FREDONIA Belgium NORH BEAVER DAM Mayville SPRING BROOK Fredonia M I H I G A N Electric ransmission Network & Substations PLANNING Miles urrently, A owns or operates transmission facilities in 50 Wisconsin counties and in 15 Michigan counties. Facilities include: Approximately 8900 miles of transmission lines 98 wholly owned substations 358 jointly owned substations Offices in Madison (2), ottage Grove, Pewaukee, De Pere Wausau and Kingsford, MI ransmission Line Voltage kv kv kv kv 138 kv kv 230 kv kv # # $+ $ kv kv kv kv!(!( Non-A ransmission Lines " " ransmission Related Facilities A Owned Substation Joint Owned Substation -- Assets onveyed Joint Owned Substation -- Assets Retained Proposed/Design/onstruction!. A Office Location A@ Generation " " Other Facility he he information information presented presented in in this this map map document document is is advisory advisory and and is is intended intended for for reference reference purposes purposes only. only. American American ransmission ompany ompany owned owned and and operated operated facility facility locations locations are are approximate.!. Zone4 11x17.mxd Modified: May 28, 2003

10 Zone 5 he physical boundaries of Zone 5 and transmission facilities located in Zone 5 are shown in Figure III-6. Zone 5 encompasses southeast Wisconsin. Land use in Zone 5 is largely urban, though some agricultural uses exist. he major population center in Zone 5 is the Milwaukee metropolitan area. Zone 5 typically experiences peak demands during the summer months. Large industrial load in the Milwaukee metropolitan area (such as harter Steel, Miller Brewing) are among the largest electricity users in the zone. Demographics he population of the counties in Zone 5 grew at an annual rate of 0.7% from 1990 to 1995 and at an annual rate of 0.4% from he highest growth rates occurred in Washington ounty though the highest increase in population occurred in Waukesha ounty. During those same two periods, employment growth rates in Zone 5 were 1.2% and 1.5% respectively. he highest growth rates and the highest increase in employment occurred in Waukesha ounty. Future Growth Projections Population in Zone 5 is projected to grow at 0.5% annually through 2005 and at 0.4% annually from 2005 through Milwaukee ounty is projected to realize the highest growth in population, while Washington ounty is projected to have the highest population growth rates. Employment in Zone 5 is projected to grow at 0.8% annually through 2005 and at 0.9% annually from 2005 through Waukesha ounty is projected to realize the highest growth in employment and the highest employment growth rates. Environmental onsiderations Planning Zone 5 encompasses the southeastern portion of the state and is the most densely populated of the zones. he area lies in the Southern Lake Michigan oastal and Southeast Glacial Plains ecological landscape regions. Most of the zone lies in the drainage basins of the Milwaukee, Root or Fox Rivers. he Kettle Moraine State Forest lies in the western portions of the zone, and Lake Michigan forms its eastern boundary. Pre-settlement vegetation varied from prairie and oak savanna in the south to southern mesic forest in the northern portions of the zone. Agricultural land uses are common throughout this zone. Electricity Demand and Generation he coincident peak load forecasts for Zone 5 for 2004, 2008 and 2012 are shown in able III-5. Existing generation along with proposed generation based on projected in service year are also shown. he resultant capacity margins with or without the proposed generation are shown as well. able III-5 Forecast of Peak Load and Generation in Zone Peak Load Forecast (megawatts) Average Peak Load Growth N/A 2.17% 2.04% Existing Generation apacity (megawatts) Existing apacity Less Load (megawatts) Existing Generating apacity plus Modeled Generating apacity Additions (megawatts) Modeled apacity Less Load (megawatts) Modeled generating capacity additions in the table above reflect those proposed capacity additions that were included in the 2003 Assessment analyses models, as listed in Section II under New Generation Assumptions he table above shows that load is projected to grow at roughly 2.1% annually from 2004 through omparing load with generation (at maximum output) within the zone indicates that Zone 5 has less generation than load during peak load periods. ransmission System Issues Key transmission facilities in Zone 5 include the southern portion of 345 kv lines from Point Beach and Edgewater, the Saukville, Arcadian, Granville and Racine 345/138 kv substations and the transmission lines emanating from the Pleasant Prairie and Oak reek power plants. here is a significant 138 kv network in the Milwaukee area, a portion of which is underground. Key system performance issues in Zone 5 include: Heavy flows on aging facilities New generation. Several new generation projects are being planned that will likely influence load serving needs in the zone Heavy flows from the west (Zone 3) resulting in heavily loaded 138 kv facilities in the western portion of Zone 5 Sagging voltage profile in portions of Washington, Waukesha and Jefferson counties Stability of existing and proposed generation in the southeast portion of Zone 5 In addition, the Wisconsin Department of ransportation is planning to reconstruct the Marquette Interchange in downtown Milwaukee and portions of the interstate system near the Marquette Interchange. hese plans may require that certain A transmission facilities be modified or relocated, as follows: A portion of Everett - 28th Street underground 138 kv circuit will need to be relocated in he Valley-Harbor and Valley-Dewey underground 138 kv circuits may need to be relocated in 2005 or he 138 kv switchyard at the Valley Power Plant will require various equipment modifications and a more extensive maintenance program. 31 Full Report September 2003

11 10-Year ransmission Assessment 32 Figure III-6 Zone 5 - Existing ransmission Facilities Lomira Fond du LacAUBURN RANDOM LAKE Sheboygan Random Lake edar Grove Key for Recently ompleted ransmission System Modifications New Substation heresa Mayville Iron Ridge Dodge Kewaskum BARON West Bend Washington S. LAWRENE Newburg Belgium FREDONIA Fredonia -D Port Washington POR WASHINGON OzaukeeSaukville SAUKVILLE EDARSAUK-SAUKVILLE Substation Modifications ransformer D apacitor Bank New -D Interconnection New ransmission Line Rebuilt ransmission Line or Voltage onversion HARFORD Hartford Slinger Jackson Grafton Neosho RUBION edarburg MAPLE MEQUON Germantown GERMANOWN GENERAING GERMANOWN hiensville Mequon 68H S Bayside Brown DeerRiver Hills Lake Michigan BARK RIVER Fox Point Lac La Belle henequa OONEY Oconomowoc Oconomowoc LakeNashotah SUMMI Delafield Dousman Wales North Prairie Lannon Menomonee Falls RANGE LINE Merton SUEX GRANVILLE Sussex AMARAK USER GLENDALE Glendale Butler Whitefish Bay BULER OONWOOD FIEBRANZ Hartland Shorewood ORNELL SHOREWOOD OSA ENER Pewaukee PEWAUKEE Brookfield Milwaukee Wauwatosa HAYMARKE Elm Grove EVERE PARK HILL Does not depict new Haymarket-Harbor BLUEMOUND WAUKESHA WALKER 138 kv line, new Haymarket-enter H S kv line, enter-fiebrantz 138 kv HARBOR Waukesha Waukesha ARADIAN West Milwaukee reconductor, enter-28th Street 138 kv West Allis LINOLN reconductor or second Everett-Valley MERRILL HILLS MOORLAND Milwaukee DEWEY 138 kv line NORWIH ERMINAL LAKESIDE New Berlin St. KANSAS Francis Greenfield udahy Hales orners Greendale BRANH RAMSEY Big Bend S. MARINS South Milwaukee Muskego Franklin Oak reek Eagle Mukwonago MUKWONAGO PENNSYLVANIA OAK REEK OAK REEK GENERAING East roy S. RIA Wind Point Waterford North Bay Rochester Racine Racine SUGAR REEK Sturtevant RAINE Elmwood Park Elkhorn ELKHORN Walworth BURLINGON Burlington Union Grove PARIS GENERAING PARIS SOMERS NORH LAKE GENEVA ALBERS M I H I G A N Lake Geneva SOUH LAKE GENEVA Williams Bay Fontana-on-Geneva Lake Silver Lake Kenosha Paddock Lake Kenosha KENOSHA BAIN PLEASAN PRAIRIE W I S O N S I N Pleasant Prairie KAZENBERG Genoa ity win Lakes LAKEVIEW 3 5 Electric ransmission Network & Substations PLANNING Miles Miles urrently, A owns or operates transmission facilities in 50 Wisconsin counties and in 15 Michigan counties. Facilities include: Approximately 8900 miles of transmission lines 98 wholly owned substations 358 jointly owned substations Offices in Madison (2), ottage Grove, Pewaukee, De Pere Wausau and Kingsford, MI ransmission Line Voltage ransmission Related Facilities 69 kv 138 kv # A Owned Substation 115 kv 230 kv $+!. A Office Location Joint Owned Substation - Assets onveyed A@ Generation 138 kv 345 kv!( Joint Owned Substation - Assets Retained " Other Facility Non-A ransmission Lines " Proposed/Design/onstruction he information presented in this map document is advisory and is intended for reference purposes only. American ransmission ompany owned and operated facility locations are approximate. Zone5 11x17.mxd Modified: May 29, 2003

12 33 Full Report September 2003