North Central Wisconsin
Zone 1
Transmission system limitations in Zone 1
Zone 1 has a few key system performance issues. High voltages may occur in the northern portion of the zone under system intact as well as contingent system conditions. Potential overloads and low voltages that are a result of multiple contingency planning events will continue to be monitored. The most severe limitations are expected during both peak and off-peak periods.
Electricity usage
Peak electric demand typically occurs during the summer months, with some winter peaks appearing in the northern portion of the zone. Primary electricity users in Zone 1 include several large paper mills and food processing plants.
Electric load is forecasted to grow approximately 0.4 percent annually through 2030.
Transmission projects in Zone 1
The most notable planned, proposed and provisional network/asset-renewal projects in Zone 1, are listed below – along with their projected year of completion and the factors driving the need for the projects.
Zone 1 includes the counties of:
- Adams , Wis.
- Fond du Lac (NW) , Wis.
- Forest (SW) , Wis.
- Green Lake , Wis.
- Juneau , Wis.
- Langlade , Wis.
- Lincoln , Wis.
- Marathon , Wis.
- Marquette , Wis.
- Monroe (E) , Wis.
- Oneida , Wis.
- Portage , Wis.
- Shawano (W) , Wis.
- Vernon (E) , Wis.
- Vilas (S) , Wis.
- Washara , Wis.
- Waupaca , Wis.
- Winnebago (W) , Wis.
- Wood , Wis.
Zone 1 Planned Projects
| Project Description | Project # | In-service year | Need driver |
|---|---|---|---|
| Waupaca Area Energy Storage Project | 1 | 2022 | Operation Flexibility |
| J986 7 Mile Creek SS, Generator Interconnection Facilities and Network Upgrades | 2 | 2022 | G-T Interconnection |
| Wautoma–Chaffee Creek 69‑kV line (Y‑49) rebuild | 3 | 2023 | Asset Renewal |
| Chaffee Creek–Lincoln Pump Station 69‑kV line (Y‑18) rebuild | 4 | 2023/2024 | Asset Renewal |
| J1002 Wautoma SS Network Upgrades and Interconnection Facilities | 5 | 2023 | G-T Interconnection |
| Petenwell–Saratoga (X-43), Line Rebuild | 6 | 2023 | Reliability, Economic |
| Rocky Run Transformer Replacement | 7 | 2023 | Reliability |
| J732 Superior SS Generator Interconnection Facilities and Network Upgrades | 8 | 2023 | G-T Interconnection |
| Petenwell–Council Creek (X-40), OPGW installation | 9 | 2024 | Communication |
| McKenna–Castle Rock 69-kV line (Y-47) rebuild | 10 | 2025 | Asset Renewal |
Zone 1 Proposed Projects
| Project Description | Project # | In-service year | Need driver |
|---|---|---|---|
| None |
Zone 1 Provisional Projects
| Project Description | In-service year | Need driver |
|---|---|---|
| None |