Manitowoc crawler cranes help boost wind energy expansion in Maine
- Manitowoc and local dealer Shawmut Equipment are helping Sprague Energy receive and stage massive wind turbine components for transport from Sprague’s Mack Point terminal in Searsport, Maine.
- The effort is part of a significant investment in renewable energy infrastructure in the state.
- A fleet of Manitowoc crawler cranes is completing up to 30 complex lifts a day, with loads of up to 101 USt.
Sprague Energy is leading a large-scale project to unload and transport massive wind turbine components from vessels and rail off the coast of Searsport, Maine, U.S. The company is using a fleet of five Manitowoc crawler cranes to efficiently move components from sea vessels to holding yards and then onto trucks that will take them to various wind energy farms across the state.
The operation, which began in January 2024, employs three Manitowoc MLC150s, one MLC250, and one MLC300 VPC-MAX™, all of which perform up to 30 lifts per day. Loads vary from 24.2 USt to 101.4 USt, and the work is expected to conclude in October 2024.
Maine is set to significantly expand its current onshore wind capacity in the upcoming years. Together, the new wind energy projects will power over 62,000 homes and reduce CO2 emissions equivalent to 50,000 cars annually. Already, 26.19% of the state’s installed energy generation capacity comes from wind.
As the energy industry goes through significant changes, Manitowoc and its customers are playing a vital role in enabling this transition with efficient and innovative tools.
Sprague Energy, Shawmut Equipment, and a partnering transportation company are working on the Searsport project together. The process of unloading and moving the parts demands exceptional coordination and precision. Some larger components, like turbine blades, can reach lengths of up to 250 ft and require two cranes working in tandem to lift them.
“Our Manitowoc cranes work together to lift the windmill’s tower sections, blades, hubs, drives, and nacelles,” explained Cameron Giroux, terminal supervisor at Sprague Energy. “Due to the significant distance between pick points on the turbine blades, we are fortunate to be able to execute two-crane lifts. We rig the components with slings, shackles, and hooks, and use a block and tackle at one end to maintain even pressure and prevent twisting of the blades. After that, we use the cranes to stage loads for the next phase.”
The complexity of the work underlines the importance of the precision and control Manitowoc’s Crane Control System (CCS) offers crane operators.
“Manitowoc’s CCS system is designed to improve operator efficiency and accuracy by offering intuitive controls and advanced diagnostics,” said Brennan Seeliger, Manitowoc’s product manager for crawler cranes. “Its user-friendly interface enables efficient operation, reducing the learning curve for operators. Users can harness the precise load monitoring, customizable configurations, and automated functions of CCS that enhance job site productivity and reduce the risk of errors. This makes it an invaluable tool for experienced and new crane operators alike.”
Giroux also emphasized how collaboration between Sprague Energy and local Manitowoc dealer Shawmut Equipment has been vital to the project’s success.
“Together, we assessed each component’s specifications — weights, lengths, styles — and matched them with the appropriate cranes. Using the load charts as our baseline, we executed a highly coordinated operations plan that’s proving to be quite successful.”
“We’re managing a continuous flow of components from ship, barge, and rail. The logistics are complex, and these cranes are essential for a seamless workflow,” Giroux added. “Without dependable cranes, we’d face significant delays. Fortunately, the Manitowoc cranes have proven reliable, and their performance makes the Manitowoc series — from 100 t to 300 t — our preferred choice when wind turbine components are larger.”
Sprague Operating Resources LLC, founded in 1870, is based in Portsmouth, New Hampshire. With a 150-year history, the company delivers innovative energy solutions and material handling services to commercial, industrial, wholesale, and government customers across the Northeast U.S. and Quebec, Canada. It offers fuel storage, delivery, electricity, material handling, storage, natural gas, and solar products and services.
Click here to watch the Manitowoc crawler cranes in action.
CONTACT
Ashley Soverns
Sr. Manager, Marketing
Manitowoc
T +1 717 593 5167
ashley.soverns@manitowoc.com
Manitowoc CCS - Sprague Energy
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MLC150-1
The MLC150-1 is a competitive offering from Manitowoc in the 150 mt (165 USt) crawler crane market. Featuring self-assembly capabilities and button style wire rope terminations allow for quick and easy assembly. Additionally, new wide body cab and improved accessibility increase operator comfort and ease of maintenance.
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MLC250
The new Manitowoc MLC250 builds on the field-proven 999 to remain unmatched in the 250-ton crawler class. The crawler is updated with the latest Manitowoc Crane Control System (CCS), open loop hydraulics for more responsiveness improved efficiency, and easier service access. The MLC250 shares common components with legacy and current production Manitowoc models that make this a cost-effective investment in your fleet.
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MLC300 VPC-MAX
Manitowoc’s new Model MLC300 utilizes Variable Position Counterweight®(VPC®) proprietary technology to “actively” engage all counterweight and eliminate the need for “passive” carbody weights. The design results in a dramatically reduced transport configuration and better center of gravity for reduced ground bearing pressures. The Model MLC300 is available in VPC® and VPC-MAX® configurations for additional capacity.
