On-Site Renewable Energy

Rooftop Solar Arrays
Western Shops Building

The Western Shops building enhances the campus experience for students, staff, and visitors by providing exemplary maintenance programs that support systems, structures, and grounds to foster university success. Completed in 2021, Western Shops includes a 358-kilowatt photovoltaic roof-mounted solar system, currently the largest roof mounted solar array in Corvallis!

Kelley Engineering Center

A 2.4 kilowatt photovoltaic system was installed on the Kelley Engineering Center during its construction in 2004. While this relatively small and early vintage system provides a fraction of the power this large commercial building needs, it demonstrates the feasibility and output of solar resources in the Willamette Valley.

 
Student Experience Center

Completed in 2015, the Student Experience Center includes a 48-kilowatt photovoltaic roof-mounted solar system.

Hatfield Marine Science Center

1.1 kilowatt array at HMSC in Newport demonstrates renewable energy technology to visitors and reflects OSU's commitment to education in sustainable practices. HMSC has also implemented campus-wide energy conservation upgrades including the installation of an energy-efficient lighting and heating/ventilation system that resulted in a 15 percent decrease in electrical consumption.

Ground Mounted Photovoltaic Arrays

In 2012 and 2013, five large ground-mounted solar electric (photovoltaic) arrays were installed on agricultural lands operated by Oregon State University as part of “Solar by Degrees,” a large-scale photovoltaic power program coordinated by the organization then known as the Oregon University System. OSU was the first to install its arrays. 

The five arrays cover more than twelve acres combined. Three are in Corvallis and two are at OSU properties in Aurora and Hermiston. The 35th Street site is the largest, at around six acres and 1,435 kilowatts. It can be found west of the Corvallis campus on the Campus Way bike path. The 53rd Street arrayis 289 kilowatts and is located adjacent to the bike path just east of the Benton County Fairgrounds. The Aquatic Animal Heal Lab array, with a capacity of 482 kilowatts, is located adjacent to Trysting Tree golf course just east of the Willamette River, off the main campus.  Check real-time monitoring and see more information.

 

OSU Solar Trailer

The OSU Solar Trailer is a portable device that captures and stores solar energy. Its purpose is to educate about photovoltaic (solar electric) energy technologies and provide a quiet, renewable, portable power supply.

The Trailer provides electricity to campus and community events such as Beyond Earth Day, the Beaver Community Fair, Oregon Country Fair, and others. Because of its on-board battery system, the Solar Trailer can also power electrical loads at night. Most small loads can be powered indefinitely, while large loads like food trucks have extended power duration during the day. The Trailer can be available for emergency dispatch when remote power requirements exist.

Need visible, renewable, portable energy for your event? Fill out the Solar Trailer request form or find the Trailer on Facebook! Fees are charged to cover labor and a vehicle needed to operate the Solar Trailer. The fee is determined by the location of the event, the number of days required and the number of hours used for set up and tear down of the Trailer. Please see the Fee Book for more detail, or submit a request form indicating you'd like an estimate of fees for your event.

OSU Solar Trailer: Cable Management

As part of a recent Capstone project, four senior-level Mechanical Engineers teamed up to design and implement a new mechanical cable management system for the OSU Solar Trailer. The Solar Trailer has a flexible conduit connecting the panels to the lower part of the trailer, and the new system is designed to prevent the conduit from getting caught or damaging other moving components. The simple device can be easily assembled and adjusted for future uses. Learn more about this project here

Solar Trailer Cable Management Capstone Video

 

More information about the Solar Trailer

The Solar Trailer was designed by OSU students as a senior project in mechanical engineering and constructed in 2007. The Student Sustainability Initiative provided about $30,000 in project funding in addition to over $20,000 received in product donations and discounts from RJH Enterprises, Outback Power, Smith Glass, MK Battery, Wattsun, Abundant Solar, and Freebird Body and Paint.

In June 2009, the Solar Trailer charged an electric vehicle for the first time. It was a campus visitor's early Tesla Roadster, illustrating that transportation fuels can be renewable too.

OSU Solar Trailer

In 2013, the Solar Trailer received a major battery technology upgrade, moving from lead acid batteries to lithium ion. The Sustainability Office and Student Sustainability Initiative took the advancements even further by contracting with local company Shift Electric Vehicles to install an onboard Level 2 electric vehicle smart charger.  This charger better utilizes the Trailer's improved battery capacity and serves as an innovative way to promote sustainable transportation.

  • 8' 6" feet wide, 16' 6" long and 8' high with solar panels folded down, or 16' high with panels deployed
  • Approximately 5,000 lbs.
  • 1800 watt solar array - nine Sanyo 200 watt solar modules
  • Two 3.6 kilowatt Outback grid interactive inverters capable of 7.2 kW (60 Amps @ 120 Volt or 30 Amps @ 240 Volt)
  • About 25 kilowatt hours of battery storage in an advanced lithium-ion battery pack, with a custom battery management system installed by Shift Electric Vehicles in Albany, Oregon
  • One SAE-J1772 Electric Vehicle Safety Equipment (EVSE) charging system
  • Two 20 amp 120 volt circuits feeding 4 standard 120V household outlets
  • One 30 amp 240 volt circuit powering one dryer style outlet
  • Wattsun dual axis sun tracker
  • Expandable, fold out array
  • Hydraulic lift moves array into sun tracking position.

OSU Bike Generator

The bike generator is a human-powered device used to generate energy. By pedaling the bike generator, you can power anything from light bulbs to small electronics. How does it work? The generator powers an inverter, which creates the same type of electricity as a household plug. The on-board 12-volt battery provides short-term energy storage so you can take a quick break from pedaling without losing power. The more you plug in, the higher resistance you will feel on the bike!

The bike generator's purpose is to produce renewable electricity for small devices and serve as an outreach resource to inspire energy conservation and efficiency. It has powered lighting, sound systems, small refrigerators & freezers, and cell phone charging stations.

To request the OSU bike generator for your event, please contact us!

More information about the Bike Generator

Major components include the generator, battery, charge controller, energy display, inverter, and a traditional bicycle. Assembly assistance was provided from Shift Electric Vehicles in Albany, Oregon. Making your own is possible, as most of these parts are sold commercially and there are some pre-assembled versions as well. Total cost for our device was around $1,900.

The 1000-watt inverter converts direct current (DC) from the generator and/or battery to alternating current (AC) for everyday items. Although the bike and battery can only produce constant outputs of up to around 300 watts (depending on the rider), the 1000-watt inverter handles surges from motor-driven devices like refrigerators.

The power produced varies with how fast the rider pedals and how hard they push. This power can then either be used to directly power the inverter or charge the battery. The inverter provides high-quality, constant 120-volt power, making it safe for all standard 120-volt devices.

Switching the battery into the circuit while riding assists the cyclist and allows the bike to power larger loads more consistently and for the rider to take short breaks. With no rider, the battery can power small loads for short times, but is primarily used to smooth the power output. Whenever the demanded wattage is less than what the bike generator is producing, the excess power goes into charging the battery.

Riding the bike at a comfortable pace will produce somewhere around 30-60 watts that can be sustained for as long as the biker can pedal. Increasing the electrical load increases the resistance that the rider encounters and therefore the amount of force that is required to rotate the pedals.

Off-site Renewable Energy

Oregon Community Solar Program Purchases

In early 2023, OSU began purchasing renewable energy from off-site solar developments through the Oregon Community Solar Program (OCSP). The OCSP supports solar growth in Oregon while offering a cost savings to electrical purchasers like OSU. In the first set of subscribed meters, OSU is projected to save around $73,500 over 20 years. We expect to subscribe more - and larger - meters later in 2023. Unlike carbon offsets or renewable energy certificates, OCSP subscribers directly purchase production from specific local projects during a 20 year contract period.

Renewable Energy Certificate Purchases

For several years, OSU purchased large amounts of renewable energy certificates (RECs) to offset its electricity use.  A student fee of $8.50/student/term, approved April 27, 2007 during the ASOSU general election, supplied funding for this purchase between 2007 and 2010, and in 2011 OSU administration made the purchase as students elected to spend their fee money for on-site projects. Since 2012, OSU has made much smaller investments in offsite renewable energy, choosing instead to focus on development of on-site renewable resources.

Following a 2006-2007 campaign led by ASOSU Environmental Affairs, the student population approved the fee with 70% of voting students voting in favor. The campaign consisted of a fall 2006 survey revealing that 68% of students supported a fee, followed by a winter term petition collecting signatures to include a renewable energy question on the spring general election ballot. Over 1,700 students signed the petition in just a few days.

GPLAThe US Environmental Protection Agency has recognized OSU multiple times for outstanding leadership in renewable energy use. In October 2008, Andrea Norris who, as a student, led the campaign for the renewable energy fee and now works at OSU's Basic Need Center, accepted on OSU's behalf a Green Power Leadership Award in Denver, Colorado.

In 2011, OSU purchased enough renewable energy to meet nearly 100% of its electricity needs and was the 5th largest college or university purchaser of renewable energy in the nation. It was also designated the PAC-12 Conference Champion in renewable energy purchases and a member of the Green Power Leadership Club.  The source of OSU's renewable energy is wind power.  All OSU RECs are Green-e certified. For 2012, OSU made a smaller purchase offsetting about 10% of total electricity use and continues to make small purchases most years.