Tucson Unified School District (TUSD) is a public school district located in Tucson, Arizona, United States of America. The district serves over 45,000 students in grades K-12 across 89 schools and employs over 8,000 staff members. TUSD is committed to providing a high-quality education to all students while also being environmentally conscious and sustainable. The district has taken several steps towards decarbonisation and renewable energy, including corporate energy and corporate power purchase agreements (PPAs).

Decarbonisation is the process of reducing carbon emissions and transitioning to a low-carbon economy. TUSD has made significant progress towards decarbonisation by implementing energy-efficient measures in its facilities. The district has installed LED lighting, upgraded HVAC systems, and implemented energy management systems to reduce energy consumption. These measures have resulted in significant energy savings and reduced carbon emissions. In addition, TUSD has also implemented a district-wide recycling program to reduce waste and promote sustainability.

Corporate energy is the energy used by a company to power its operations. TUSD has implemented several measures to reduce its corporate energy consumption. The district has installed solar panels on several of its schools, which generate renewable energy and reduce the district's reliance on fossil fuels. In addition, TUSD has also implemented energy-efficient measures in its facilities, such as LED lighting and upgraded HVAC systems, to reduce energy consumption.

Corporate power purchase agreements (PPAs) are agreements between a company and a renewable energy provider to purchase renewable energy at a fixed price for a set period. TUSD has entered into several corporate PPAs to purchase renewable energy. In 2019, the district entered into a 20-year PPA with a solar energy provider to purchase renewable energy at a fixed price. This PPA is expected to generate significant cost savings for the district while also reducing its carbon footprint.

Renewable energy is energy generated from renewable sources such as solar, wind, and hydro power. TUSD has made significant investments in renewable energy to reduce its reliance on fossil fuels. The district has installed solar panels on several of its schools, which generate renewable energy and reduce the district's carbon footprint. In addition, TUSD has also entered into corporate PPAs to purchase renewable energy at a fixed price.

TUSD's commitment to decarbonisation and renewable energy has not only reduced its carbon footprint but has also resulted in significant cost savings. The district's energy-efficient measures and renewable energy investments have resulted in significant energy savings, which have translated into cost savings for the district. In addition, the district's corporate PPAs have provided fixed-price renewable energy, which has reduced the district's exposure to volatile energy prices.

TUSD's commitment to sustainability extends beyond its energy initiatives. The district has implemented a district-wide recycling program to reduce waste and promote sustainability. In addition, TUSD has also implemented water conservation measures, such as low-flow toilets and faucets, to reduce water consumption.

TUSD's commitment to sustainability has not gone unnoticed. The district has received several awards and recognitions for its sustainability initiatives. In 2019, TUSD was recognized by the U.S. Department of Education as a Green Ribbon School District for its commitment to sustainability. In addition, the district has also received several awards for its energy-efficient measures and renewable energy investments.

In conclusion, Tucson Unified School District is committed to providing a high-quality education to all students while also being environmentally conscious and sustainable. The district has taken several steps towards decarbonisation and renewable energy, including corporate energy and corporate power purchase agreements. TUSD's commitment to sustainability has resulted in significant cost savings while also reducing its carbon footprint. The district's efforts have not gone unnoticed, and TUSD has received several awards and recognitions for its sustainability initiatives. TUSD's commitment to sustainability serves as a model for other school districts and organizations to follow.