Portage Solar Plant — Plant Summary
- EIA Plant ID
- 67597
- Capacity
- 11.8 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Columbia, WI
- Operating Since
- 2023
- Generators
- 1
- Operator
- Portage Solar Plant
- Parent Company
- —
- Annual Generation
- 22,800 MWh
- Capacity Factor
- 22.0%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- MRO
Portage Solar Plant
OperatingSolar
Ranked #25 of 102 Solar plants in WI#1960 of 7447 nationally
11.8 MW Solar operating in Columbia, WI — Midcontinent Independent Transmission System Operator, Inc..
EIAGEM
11.8 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2023
Operating Since
Location
Coordinates
38.9384, -76.0454
County
Columbia, WI
Nearby Plants
- Wye Mills VNEM CSGSolar10 MW · 0.2 km
- Chesapeake CollegeSolar1.5 MW · 3.2 km
- Queen Anne's CountySolar2 MW · 10.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Portage Solar Plant | — | — |
| Owner(s) | Portage Solar Plant | — | — |
| Status | Operating | operating | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Portage Solar Plant is a solar photovoltaic facility located in Columbia County, Wisconsin. The plant has a total capacity of 11.8 MW and commenced operations in 2023. It is owned and operated by Portage Solar Plant. The facility utilizes single-axis tracking technology to maximize solar energy capture. As of its latest annual generation data, the plant produced 22,800 MWh, achieving a capacity factor of 22.0%.
Portage Solar Plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the NERC MRO region. It is ranked as the 23rd largest solar plant out of 99 in Wisconsin, and 1759th out of 7108 nationally. Financial data is available for the plant from LBNL Solar.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
34.5 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
1.9K MWh
Latest Month
22.8K MWh
Annual Generation
22.0%
Capacity Factor
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$59.7/MWh
LCOE (Levelized Cost)
$26.8/MWh
Energy Value
Pricing & Market Data
LOW confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MICHIGAN.HUB
Node Source
OSM spatial match
News & Articles (10)Beta
General
As energy-hungry data centers loom, Wisconsin ratepayers owe $1B on shuttered power plants
By some measures, the Pleasant Prairie Power Plant, once regarded locally as an “iconic industrial landmark,” had a good run.
Wisconsin Examiner·3 months ago
General
As energy-hungry data centers loom, Wisconsin ratepayers owe $1B on shuttered power plants
By some measures, the Pleasant Prairie Power Plant, once regarded locally as an “iconic industrial landmark,” had a good run.
Wisconsin Examiner·3 months ago
General
Here's the status of 11 solar projects proposed in central Wisconsin
Several solar array proposals were in the news recently. Find out where they are planned, construction timelines and more.
Stevens Point Journal·3 months ago
Industry·technology
Made in Wisconsin: The world’s most powerful AI datacenter
Today, we announced the newest AI @Microsoft datacenters in Wisconsin—some of the largest and most sophisticated AI training facilities ever...
Microsoft (operator)
The Official Microsoft Blog·6 months ago
Last updated 2026-03-26
View all 10 articles