Diamond Willow is a 30MW onshore wind power project. It is located in Montana, the US. The project is currently active. It has been developed in multiple phases. Post completion of construction, the project got commissioned in December 2007.

Project Type Total Capacity (MW) Active Capacity (MW) Pipeline Capacity (MW) Project Status Project Location Project Developer
Onshore 30 30 Active Montana, the US Crownbutte Wind Power


The project was developed by Crownbutte Wind Power and is currently owned by MDU Resources Group with a stake of 100%.

The project supplies enough clean energy to power 7,000 households.

Development Status

The project is currently active. The project got commissioned in December 2007.

Power Purchase Agreement

The power generated from the project is sold to MDU Resources Group under a power purchase agreement with a contracted capacity is 19.5MW.

Contractors Involved

GE Renewable Energy was selected as the turbine supplier for the wind power project. The project consists of 20 units of 1.5-77 turbines, each with 1.5MW nameplate capacity.

About Crownbutte Wind Power

Crownbutte Wind Power, Inc. (Crownbutte) is a wind power developing company. The company develops, builds and operates the wind power generation facility. It ridges provide ideal locations to site wind turbines. Crownbutte provides services such as site selection, construction of the erected towers, maintenance and plans for ownership of wind parks. Crownbutte has pipeline of 300 MW of wind power projects in development. The company offers consulting and advisory service to power utilities.It also has operating parks with regional utilities and international energy companies. The company has presence in North Dakota, South Dakota and Montana. Crownbutte is headquartered in West Palm Beach, Florida, the US.


All power projects included in this report are drawn from GlobalData’s Power Intelligence Center. The information regarding the project parameters is sourced through secondary information sources such as electric utilities, equipment manufacturers, developers, project proponent’s – news, deals and financial reporting, regulatory body, associations, government planning reports and publications. Wherever needed the information is further validated through primary from various stakeholders across the power value chain and professionals from leading players within the power sector.