In Spring 2016 Bryann Allen, Austin Anderson, and Solomon Clark from the Renewable Energy Student Union (RESU) proposed to replace the old natural gas water heater with an electric heat pump water heater with solar thermal coil preheating in the CCAT house. In total there is one outdoor unit and one indoor unit. The RHEEM hybrid electric air-to-water heat pump system provides hot water to both levels of the house. The electric heat pump and solar preheat system replaces the inefficient natural gas water heater which had a broken coil.

This project piloted 3 different kinds of 'smart' shower heads to measure the impact on water use in residence halls. This was a pilot project implemented in Canyon Residence Halls, the results of which showed that water use data was difficult to retrieve and the devices were not designed for a continuous-use commercial-style application and therefore broke frequently. Due to these results, the devices were not implemented large scale across campus.

This project replaced existing cobra head street lights on campus with LED fixtures. The upgrade also included bi-level dimming controls which will further increase energy savings.

In Spring 2017 Toni Castillo proposed to upgrade the Telonicher Marine Lab with modern, energy efficient LEDs. At the time, this was Cal Poly Humboldt’s most energy intensive building and this project came out of an initial audit performed by the Redwood Coast Energy Authority on October 28, 2016. The Idea Paper was approved by the committee on March 6, 2017 and then moved into development in Fall 2017. At the end of the semester, the developed project was approved to move forward with a budget cap of $120,000.

The project paid for the design and engineering to convert the natural gas fuel heating system with a series of heatpumps.

The project will replace HID lights in the fieldhouse with LED lamps including controls.

The project took six months to design (October 23, 2019 to April 13, 2020) and two months to implement (February  5, 2021 to April 9, 2021) for a total cost of $84,194.44. The completed system replaced the existing wood stove as the sole source of space heating at the time. By installing an all electric mini-split heating system, CCAT aligns its sustainability and carbon reduction goals to move towards zero net energy and toward being a completely electrified home. The system contains a single outdoor unit and 5 indoor units (4 upstairs and 1 downstairs).

The project replaced old single speed water pumps at the fish hatchery with a new premium effiency pump with a variable speed drive and an updated control system.Read More Here: Final Project Report

This project converted several "green spaces"- or areas predominantly covered in grass- to areas that would require less water and fuel for maintenance. The Library Oak Lawn, the Van Matre Lawns, and the Harry Griffith Hall (HGH) Courtyard Lawns were all converted, and water usage for these areas is estimated to have decreased from 40,900 gallons per year to 5,539 gallons per year- now representing only 13% of the previous usage.Read more here: Final Report

The purpose of the WRRAP Electric Bike project was to provide a reliable and suitable form of transportation for the Compost Squad from the Waste Reduction and Resource Awareness Program (WRRAP) to collect organic material within the Cal Poly Humboldt campus.Read More Here: Final Report