Plant will convert waste heat to electricity for Minnesota & Wisconsin

From an article posted on Ormat:

Ormat Technologies Inc. (NYSE: ORA) has begun commercial operation of a power station in Minnesota, and will sell the electricity produced to Great River Energy.

Ormat said that the GRE recovered energy generation (REG) power plant is a 5.5 MW net power plant that converts the waste heat from the exhaust of a gas turbine in a compressor station along a natural gas pipeline in Martin County, Minnesota. The plant converts recovered heat to electricity without the need for any additional fuel or water.

The electricity produced by the project is sold to Great River Energy under a 20 year power purchase agreement. Great River Energy provides wholesale electric service to 28 distribution cooperatives in Minnesota and Wisconsin.

Ormat CEO Dita Bronicki said, “This is the 10th REG unit we own and operate in the US, that brings the total installed capacity to approximately 53 MW and contributes to the important goal of emission free power generation.”

Ormat called the technology environmentally benign, with no emissions of carbon dioxide or nitrogen oxide.

Students ride the sun; take plug-in hybrid buses to school

From a article by Tom Content in the Milwaukee Journal Sentinel:

Town of Oconomowoc — Sandy Syburg has driven school buses for years – but none like these.

When they start rolling on their routes next week, these hybrid electric school buses won’t lurch forward the way conventional school buses do.

A diesel engine is least efficient when it’s trying to get a 27,000-pound vehicle moving from a full stop, Syburg said. Thanks to the hybrid technology, the electric motor kicks in first, with lithium-ion batteries powering the bus forward from a stop.

“It’s very smooth. It’s like a gust of wind when you’re sailing,” said Syburg, chief executive of Oconomowoc Transport Co.

In the bus terminal, Syburg can plug an electrical cord into the side of the bus so that solar panels can charge the batteries that run the vehicle’s electric motor.

To date, more than 100 hybrid school and commercial buses have rolled off of the IC Bus LLC assembly line since 2007. Eleven of them are plug-in hybrid electric school buses in Oconomowoc, ready to start the school year next week.

The investment, aided by a state grant through the federal stimulus package, aims to reduce diesel fuel use by 7,500 gallons a year. That would provide savings of $26,000 in fuel costs for the Oconomowoc Area School District at today’s diesel prices.

When they’re done with their morning school run, the buses will return to the bus company on Brown St. and their batteries will be recharged with the help of 224 solar panels that were erected by Renewable Energy Solutions of Waukesha.

It’s the first solar-electric charging station in the state, and it’s ready to power the biggest fleet of plug-in hybrid school buses in the country.

The buses are projected to result in saving because of a 50% gain in fuel economy. A typical bus gets 7 miles per gallon, but the hybrid technology will boost that to 12.

“It’s a little glimpse of the future; it’s very impressive,” said Mike Barry, assistant superintendent of the district. The district will seek to incorporate the solar-powered hybrids into its curriculum.

“We’re trying to make some links between the curriculum that the students learn about in school and the real world,” he said. “When the connection is as immediate as the very bus that takes you to and from school, that’s a powerful connection.”

La Crosse County board approves gas to energy project

From an story on WEAU-TV, La Crosse:

The La Crosse County Board has approved moving forward with a solid waste project that could bring about $3.5 million to La Crosse County.

The county has been working with Gundersen Lutheran on a gas to energy project. Right now the methane gas that’s taken from the decomposing garbage in the landfill is wasted as it’s burned off.

The new project would send that gas through a pipeline directly to Gundersen’s Onalaska Clinic where it can be used to create electricity and heat.

From a news release issued by Gunderson Lutheran:

Gundersen Lutheran and La Crosse County are moving forward on a unique green project that will turn garbage into renewable energy. The project will use waste gas that is created from garbage at the La Crosse County Landfill to create electricity and heat. The La Crosse County Board unanimously approved moving forward on the combined heat and power project, which is expected to offset about 12 percent of Gundersen Lutheran’s total energy use.

“This is a great use of a currently unused natural resource and it is an excellent example of what a public-private partnership can achieve in our community. We considered many partners for this project, and Gundersen Lutheran was a logical fit with their experience in renewable energy projects,” says Hank Koch, solid waste director, La Crosse County.

“We are very pleased to be entering into this partnership with La Crosse County,” adds Jeff Rich, executive director of Business Services, Gundersen Lutheran. “This project will help Gundersen Lutheran reduce the cost of healthcare, but beyond that, it’s good for the environment and it will be beneficial for the taxpayers of La Crosse County.”

ATC plan would upgrade local power line

From an article by Jessica Larsen in The Tomah Journal:

A Pewaukee-based company applied to rebuild and upgrade an existing 17-mile electric transmission line that connects the Monroe County substation near Sparta and one near Tomah.

American Transmission Company filed the application with the Public Service Commission on July 29 for the $36 million project. By January 2011, ATC will receive the commission’s decision. If the company gets the go-ahead, construction would begin in summer 2012 and finish in summer 2013.

ATC would also build a new Timberwolf Substation 1/2 mile south of Interstate 90 along Hwy. 131 as part of the project to improve electric system reliability.

ATC’s project plan involves replacing the structures and wires of the existing 69-kilovolt transmission line, which runs mostly along Hwy. 16, and then adding a 161-kilovolt circuit to the new steel structures.

The existing system is about 40 years old, the company reports, and is susceptible to overloads and severe low voltages. The project would increase the reliability of the electrical system. ATC also said that the project would show economic savings by increasing the system’s ability to access lower-cost generation and reducing energy loss.