Clean Energy Commitment | Our Progress | Coal Reduction | Clean Resources | Energy Innovation | Emissions Reporting | Collaboration | Governance | Fleet and Facilities

Updated: March 2022

Our Commitment: 100% Clean Energy by 2050

Our customers and stakeholders want clean energy, and we are listening. Together, we are advancing Arizona’s clean energy future. We plan to achieve a fully clean, carbon–free energy mix by 2050 to ensure Arizona remains a healthy and beautiful place to live and work.

We've set a bold, three-part goal to provide a clean energy future for our customers:

  • An aspirational goal to provide 100% clean, carbon-free electricity by 2050
  • A nearer-term 2030 target of achieving a resource mix that is 65% clean energy, with 45% of our generation portfolio coming from renewable energy
  • A commitment to end all coal-fired generation by 2031, seven years sooner than previously projected

Carbon Goal

Our clean energy plan is guided by sound science and focused on achieving environmental and economic gains—all while maintaining affordable, reliable service for our customers. Collaboration with customers, regulators and other stakeholders is key to our plan’s ultimate success. We look forward to working alongside those who believe in this vision to move forward together to keep Arizona clean, beautiful and thriving.

“We see incredible things ahead for Arizona and are excited to power our state’s future with electricity that will be 100% clean.” — Jeff Guldner, Chairman and CEO, Arizona Public Service

Learn more from our leadership:

Learn more in our Clean Energy Commitment Report.

Our Progress

In collaboration with industry and community partners, APS is progressing toward a 100% clean, carbon-free energy future.

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Tracking our 2030 target. During 2021, the share of APS’s energy supply from clean resources was 50%, which includes energy from nuclear, renewables and demand side management (DSM). We are on track to reach our goal of 65% clean resource mix by 2030. In addition, by 2030, 45% of our generation portfolio will be from renewable energy. Renewable energy is measured in accordance with the Arizona Corporation Commission’s Renewable Energy Standard as a percentage of retail sales. In 2021,15% of sales were from renewable energy.



Learn more about our plans in our Integrated Resource Plan and an article that explains the  meaning of carbon-free energy.

Opportunities for coal reduction. In 2021, we announced plans for seasonal operations of Four Corners Power Plant beginning in 2023. Seasonal operations will result in up to 25% reduction in annual CO2 emissions at the plant.

Planning a responsible transition from coal. To facilitate the shift from coal, APS proposed a coal communities transition plan to support the areas that are home to coal-fired power stations. We remain committed to providing financial support and resources to coal communities in our region (including the Navajo Nation, the communities around the Cholla Power Plant in Navajo County and the Hopi Tribe) as they transition from fossil fuels to clean energy. While the Arizona Corporation Commission did not adopt our proposal for more than $140 million in support to these communities, we have already taken the first steps on delivering our company share of $6.1 million and will continue to advocate for a just transition with our regulator.

Adding clean resources to meet customers’ growing energy needs. Since our initial announcement in 2020, we’ve procured nearly 1,400 megawatts of clean energy and storage – all of which are expected to be in service for APS customers no later than 2024. All 1,400 megawatts were procured through competitive solicitations, ensuring competitive pricing for new resources as we plan to serve our growing economy.

Linking our commitment to executive compensation. In February of 2022, the Human Resources Committee revised the metrics for our performance share grants and added a clean megawatt installed metric to reflect our commitment to our clean energy commitment.

Steady production of carbon-free nuclear power from Palo Verde Generating Station. The station continued to do its part, producing clean nuclear power with a 91.7% capacity factor (an important measure of efficiency) for 2021.

Providing tools and programs to empower customers. APS’s demand-response programs use a virtual network of smart home products, like thermostats, water heaters and pool pumps, to reduce energy use on Arizona’s hottest summer days and shift energy demand to when more solar power is available. This shift is just one of the strategies and innovative solutions for our customers to use to help us reduce carbon emissions to meet our clean energy goals.

Going beyond the generation mix to help reduce emissions in other sectors. To help achieve a cleaner environment and encourage more drivers to adopt electric vehicles (EVs), APS is providing business customers with free EV-charging equipment, installation and maintenance through the Take Charge AZ program. As of February 2022, APS has installed more than 400 Level 2 charging plugs at businesses, schools and government buildings across Arizona. Last year, APS announced a partnership with Electrify America to install DC Fast Chargers in Globe, Payson, Prescott, Sedona and Show Low.

Learn more about customer tools and programs and the role of customers in designing Arizona’s clean energy future .

Coal Reduction

One of the methods to achieve our Clean Energy Commitment will include ceasing the use of coal-generated electricity.

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In 2021, we announced plans for seasonal operations at Four Corners Power Plant beginning in 2023. Compared to current conditions, the shift to seasonal operations will reduce annual carbon emissions from the plant by an estimated 20-25%, furthering APS’s commitment to exit coal by 2031 and the individual sustainability goals of the plant’s other owners.

Learn more about  seasonal operations.

In addition, we have committed to end the use of coal at our remaining Cholla units by 2025 and made an overall commitment to exit coal by 2031, which means we will close the Four Corners Power Plant seven years earlier than our original plan. We have retired more than 1,000 megawatts of coal-fired electric generating capacity. These closures, in addition to other measures taken by APS, have resulted in a reduction of carbon emissions of 32% since 2005, which is equivalent to removing more than 1.2 million passenger vehicles from the roads.

With plant closures, we work closely with impacted employees and local communities to ease the transition and support long–term economic planning for a future beyond coal.

Learn more about our  coal communities transition plan.

Clean Resources

Achieving our Clean Energy Commitment will include various methods such as relying on Palo Verde; increasing clean energy resources, including renewables; promoting energy efficiency; and optimizing regional resources.

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Nuclear. Palo Verde Generating Station has been the nation’s largest power producer of any kind for 30 years – all of it clean and carbon-free. As the heart of the APS generation fleet, it provides the foundation for the reliable service our customers count on.

The plant is a critical asset to the Southwest, generating more than 32 million megawatt-hours annually – enough power for roughly 3.4 million households or 8.5 million people. In addition, Palo Verde provided much needed support during the recent Texas power crisis by delaying the start of equipment reliability repairs enabling full-power output when it was most needed.

Nuclear energy works with renewable generation to create a more reliable, diverse clean-energy portfolio. Palo Verde produces clean energy at all hours supporting the basic electrical needs of our customers when solar and wind are not available. Without nuclear energy, carbon emissions would increase due to a greater reliance on carbon-emitting fossil fuels to fill the inevitable energy void during periods of low renewable generations, such as after sunset. Nuclear energy can facilitate increased adoption of EVs and improve the environment by supplying zero-emission energy to charge EVs and large-scale batteries.

While Palo Verde has seven owners in four states, nearly half of its output is dedicated to serving Arizona consumers. Electricity generated by the plant annually displaces more than 13.2 million metric tons of greenhouse gas (GHG) emissions that otherwise would have been produced. It is estimated that Arizona’s energy-related emissions would be about 14% higher without the displaced carbon emissions from Palo Verde.

Additionally, as the nation’s only nuclear plant not located on a body of water, Palo Verde recycles more than 20 billion gallons of wastewater annually from surrounding municipalities to cool the plant. This represents more than 20% of all effluent used in Arizona.

Learn more about Palo Verde Generating Station .

Renewables. With nearly 300 sunny days each year in Arizona, APS and its customers are transforming sunshine into a renewable energy source that powers an increasing number of homes and businesses across the state. APS supports customers interested in protecting the environment and reducing their energy bills by installing renewable energy technologies like rooftop solar systems at their homes, schools and businesses. Nearly 141,000 solar systems on customer rooftops and parking structures are already connected to the APS smart grid, providing almost 1,300 megawatts of robust solar capacity. In 2021 the amount of residential solar generating capacity installed in APS service territory was 20% higher than 2020. Nationally, only Hawaii and California have more residential solar capacity per capita than Arizona. As the largest electricity provider in the state, APS and its customers have been a big part of that achievement:

  • APS ranks fourth nationally for the percentage of residential customers with rooftop solar systems
  • APS customers installed a record amount of residential solar capacity in 2021
  • 15% of all single-family homes in APS territory have a solar system, and that number continues to grow

Learn more about our solar path for a cleaner, greener Arizona.

Renewable Energy Portfolio. In 2006, the Arizona Corporate Commission (ACC) adopted the Renewable Energy Standard (RES). Under the RES, electric utilities that are regulated by the ACC must supply an increasing percentage of their retail electric energy sales from eligible renewable resources, including solar, wind, biomass, biogas and geothermal technologies. The renewable energy requirement is 12% of retail electric sales in 2022 and increases annually until it reaches 15% in 2025.

At the end of 2021, APS had a diverse portfolio of existing and planned renewable resources totaling 2,758 megawatts, including solar, wind, geothermal, biomass and biogas. Of this portfolio, 2,218 megawatts are currently in operation and 540 megawatts are under contract for development or are under construction. Renewable resources in operation include 247 megawatts of facilities owned by APS, 736 megawatts of long-term purchased power agreements, and an estimated 1,235 megawatts of customer-sited, third-party owned distributed energy resources.

Learn more about our Renewable Portfolio.

APS’s strategy to achieve its RES requirements includes executing purchased power contracts for new facilities, ongoing development of distributed energy resources and procurement of new facilities to be owned by APS. In December 2020, APS issued two Request for Proposals (RFP): a battery storage RFP for projects to be located at two AZ Sun sites; and an all-source RFP that solicited resources to meet our clean energy needs and capacity to maintain system reliability and was later amended to include a request for 150 megawatts of solar resources to be developed on APS property and owned by APS (collectively, the “December 2020 RFPs”). As a result of the all-source RFP, APS executed a PPA in October of 2021 for a 238 megawatt wind resource to be in service by June 2023, and also executed an engineering, procurement and construction contract in November of 2021 for a 150- megawatt solar resource to be owned by APS and in service in early 2023. APS continues to negotiate contracts for additional resources to be in service in 2024 in connection with the all-source RFP. Once it secures those important resources and closes out the December 2020 RFPs, APS intends to issue its next all- source RFP to address resource needs for 2025 and beyond.

Learn more about our Integrated Resource Plan and RFP expansion for APS- owned solar.

Demand Side Management. Technologies such as rooftop solar, LED lighting and smart thermostats have given customers more power to control their energy usage and potentially reduce their costs. As more emerging technologies such as energy storage devices become commercially viable, they will continue to change how customers interact with us. By being proactive and working with our customers to identify and respond to their changing needs, we remain well positioned to deliver value. And by providing customers the opportunity to manage their energy and peak demand, we can expand the use and understanding of load-management technologies, encourage customers to reduce CO2 emissions, use energy during off-peak hours and better align with solar production and system peak conditions. Taking these innovations to scale will help us achieve our bold clean energy commitment.

Learn more about our evolving residential energy management to be a clean peak resource.

APS’s demand-response programs use a virtual network of smart home products, like thermostats, water heaters and pool pumps, to reduce energy use on Arizona’s hottest summer days and shift energy demand to when more solar power is available. Chief among the programs connected to the APS virtual power plant is the company’s signature residential thermostat program, APS Cool Rewards. With more than 57,000 residential smart thermostats enrolled, customers benefit from incentives, discounts and energy-savings options for voluntarily conserving energy. APS Cool Rewards boasts a capability of shedding more than 80MW of energy from APS’s smart grid. This energy avoidance saves customers money, helps the environment and builds a more robust electrical grid. APS Cool Rewards is recognized as one of the five largest Bring Your Own Thermostat (BYOT) programs in the country and one of the largest utility-managed thermostat virtual power plants. APS has a 2022 goal of reaching 110,000 thermostats to provide over 130 megawatts of summer capacity.

Learn more about the role of our customers, virtual power plant and customer programs.

Energy Innovation

Advances in energy technology will be necessary to achieve our Clean Energy Commitment. Our strategy includes methods such as relying on Palo Verde, the nation’s largest producer of carbon-free energy; increasing clean energy resources, including renewables; developing energy storage; ceasing the use of coal-generated electricity; managing demand with a modern interactive grid; promoting customer technology and energy efficiency; and optimizing regional resources.

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Hydrogen. One of the more promising emerging opportunities is the use of hydrogen. A substantial majority of the world’s industrially produced hydrogen creates carbon dioxide as a byproduct.

However, when hydrogen is produced by electrolysis using clean electricity (such as nuclear, solar or wind energy), the resulting hydrogen is carbon-free. Producing hydrogen when there is an excess of carbon-free electricity creates an energy vector that can be used as another clean energy storage technology for meeting peak demand. The clean hydrogen can also be used as an energy carrier for evolving hydrogen transportation technologies, and as a feedstock to produce synthetic hydrocarbons that introduce no new carbon into the environment.

APS is one of three utilities chosen by the Department of Energy's Office of Nuclear Energy and Office of Energy Efficiency & Renewable Energy to participate in a hydrogen production project in partnership with Idaho National Laboratory. The goal is to improve the long-term economic competitiveness of the nuclear power industry through the integration of hybrid energy systems such as hydrogen production. The multi-phase project will examine how hydrogen can be produced by clean nuclear power. Experience from the pilot project will offer insights into methods for flexible transitions between electricity and hydrogen generation missions in solar-dominated electricity markets and demonstrate how hydrogen may be used as energy storage to provide electricity during operating periods when solar is not available.

Learn more about the Palo Verde & Idaho National Lab hydrogen partnership.

Energy Storage. APS deploys several advanced technologies on its system, including energy storage. Storage can provide capacity, improve power quality, be utilized for system regulation, integrate renewable generation, and, in certain circumstances, be used to defer certain traditional infrastructure investments.

Energy storage can also aid in integrating higher levels of renewables by storing excess energy when system demand is low and renewable production is high and then releasing the stored energy during peak demand hours later in the day and after sunset. APS is utilizing grid-scale energy-storage projects to benefit customers, to increase renewable utilization, and to further our understanding of how storage works with other advanced technologies and the grid. We are preparing for additional energy storage.

In 2018, APS issued a request for proposal (RFP) for approximately 106 megawatts of energy storage to be located at up to five of its AZ Sun sites. Based upon its evaluation of the RFP responses, APS decided to expand the initial phase of battery deployment to 141 megawatts by adding a sixth AZ Sun site. These battery storage facilities are expected to be in service during the summer of 2022. On August 2, 2021, APS executed a contract for an additional 60 megawatts of utility-owned energy storage to be located on APS’s AZ Sun sites. This contract, with a 2023 in-service date, will complete the addition of storage on all current APS-owned utility-scale solar facilities.

Additionally, in February of 2019, APS signed two 20-year Purchase Power Agreements (PPAs) for energy storage totaling 150 megawatts. These PPAs were subject to ACC approval in order to allow for cost recovery through the PSA. APS received the requested ACC approval on January 12, 2021, and service under the agreements is expected to begin in 2022 with respect to 100 megawatts and in 2023 with respect to 50 megawatts.

As a result of its December 2020 RFPs, APS executed four 20-year PPAs for resources that include energy storage: two PPAs for standalone energy storage resources totaling 300 megawatts; and two PPAs totaling 275 megawatts solar plus storage resource. The PPAs were also subject to ACC approval to enable cost recovery through the PSA. APS received the requested ACC approval on December 16, 2021. Service under the agreements is expected to begin in 2023 and 2024.

APS plans to install more than 900 megawatts of energy storage by 2025, including the energy storage projects under PPAs and AZ Sun retrofits described above. The remaining energy storage is expected to be made up of resources solicited through current and future RFPs.

Learn more about our energy storage strategy.

Emissions Reporting

We believe it’s important to disclose our carbon management strategies and GHG emissions to customers, investors and other stakeholders. We have a comprehensive air emissions monitoring and reporting program in which results are shared in compliance with government regulations and ESG reporting standards. We use this information to track our overall progress toward our Clean Energy Commitment.

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Overall Air Emissions. In 2021, APS’s carbon dioxide emissions were about 11.2 million metric tons. This represents a 32% decrease in annual carbon dioxide emissions since 2005.

We also track emissions of other traditional air pollutants. Since 2005, as a direct result of our commitments to reduce air pollution and institute operational efficiency enhancements, we have achieved reductions in annual emissions of Nitrogen Oxides (NOx) of 84% and annual emissions of Sulfur Dioxide (SO2) of 86% from our overall fleet.

Learn more about air emissions data.

Carbon Intensity. For internal tracking to our Clean Energy Commitment, we monitor carbon intensity which we define as the measure of total carbon emissions, measured in metric tons per megawatt hour of energy delivered by APS to our customers. It includes total emissions from APS-owned generation and power purchase agreements, as well as megawatt hours from distributed generation and megawatt hours saved from demand side management.

Learn more about carbon intensity data.

Greenhouse Gas Reporting. To track our progress toward our Clean Energy Commitment, we report our Scope 1 and Scope 2 carbon emissions. Scope 1 emissions include all direct emissions arising from the sources we own and control (e.g., emissions associated with fuel combustion in boilers, furnaces and vehicles). These direct emissions result from activities that physically release greenhouse gases into the atmosphere. In 2021, our Scope 1 emissions remained relatively flat from the prior year and were about 11.3 million metric tons.

Scope 2 emissions include all indirect emissions associated with electricity, steam, heat or cooling purchased for use in our owned and controlled operations. These indirect emissions occur outside of our reporting boundary and are emitted by power- generation sources owned or controlled by another party. Scope 2 also includes indirect emissions associated with Transmission and Distribution (T&D) line losses from electricity that is not generated by the company transmitting or distributing the power. In 2020, our Scope 2 emissions reporting boundary changed to include of T&D line losses from purchased power. In 2021, our market-based Scope 2 emissions were about 112,000 metric metric tons.

Learn more about greenhouse gas emissions data.

CDP Recognition. Through significant demonstrable action on climate-change risk, Pinnacle West is leading corporate environmental ambition, action and transparency worldwide. Pinnacle West has been recognized for leadership in corporate sustainability by global environmental nonprofit CDP, recognized with a prestigious A- score for Climate Change and Water Security. CDP collects and analyzes environmental data and benchmarks companies for investors to use in financial decisions.

Pinnacle West is one of only two North American electric utility companies to achieve Leadership scores in climate change and water security out of the 140-plus electric utilities that were scored through CDP’s questionnaires in 2021, with nearly 12,000 companies being scored in total. We were recognized for our actions to cut emissions, mitigate climate risks and contribute to a low-carbon economy. Our scope 1, 2 and some of scope 3 GHG emissions reported to CDP are third-party verified.

Read our news story and learn more about our CDP responses and documents.

Agency reporting. We submit a comprehensive annual report of our GHG emissions to the Environmental Protection Agency (EPA) as required by federal law. Additionally, we are required to report releases of chemicals listed in the federal Toxic Release Inventory (TRI) program to the EPA. Our reportable releases under the TRI program primarily include air emissions from power plants and coal ash disposal. Reports for Four Corners Power Plant and the Cholla Power Plant can be found on the EPA TRI web site.


Achieving our clean energy commitment will require continued advances in energy technology. To help drive clean energy investment and innovation, APS will encourage policies that enable market–based solutions and serve as a driving force behind energy research and development.

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APS will continue to pursue the advancement of new and emerging technologies. Given the research, incubator labs, startups and investment involved in clean energy, we are confident emerging technologies will become proven and commercially available at competitive prices. Some recent partnerships include:

Business Customer Partnerships. To support Arizona’s business community, APS’s new Green Power Partners program will provide businesses with special options to reach their sustainability goals and transition to 100% clean operations. The program will launch in 2022. Last year, APS launched the Going Smart & Going Green program for small businesses, which provides free web-based training in energy conservation and other ways to save.

Statewide Transportation Electrification. Nationally, the transportation sector emits more carbon than the utility sector. To help achieve a cleaner environment and encourage more drivers to adopt EVs, APS is providing business customers with free EV-charging equipment, installation and maintenance through the Take Charge AZ program.

APS also engaged in a collaborative stakeholder process to develop a statewide transportation electrification strategy and plan. As part of its participation in the Arizona Statewide Transportation Electrification Plan, APS set a goal to support the adoption of 450,000 electric vehicles in the APS service territory by 2030.

Learn more about the role of EVs in our clean energy transition.

Partnership with Industry Experts. APS is a partner in the Low-Carbon Resources Initiative (LCRI). The LCRI is a unique effort across the energy landscape, leveraging the collaborative research models of Electric Power Research Institute (EPRI) and Gas Technology Institute (GTI) to produce industry-leading results for society. This five-year initiative brings together industry stakeholders to accelerate development and demonstration of low- and zero-carbon energy technologies through transformative, clean energy research and development.

Community Partnerships. APS and Arizona’s cities are aligned in commitment to make our communities livable, attractive spaces for residents and businesses. The counties, cities, and towns we serve have a stake in the reliability and affordability of the products and services we provide. As governmental bodies, they also have their own carbon and sustainability goals. Our commitment to clean energy provides opportunities for collaboration and can accelerate the ability of municipalities to attain their renewable energy goals and increase their capacity to focus on other areas, such as energy efficiency and overall sustainability. For example, the City of Flagstaff has approved a Memorandum of Understanding (MOU) with APS that establishes a direct partnership and promotes synergy. It enables us to use each other’s skill sets to achieve common energy and carbon-based goals. The cities of Tempe and Phoenix also have formal working groups in which we participate and collaborate on achieving our shared Clean Energy Commitment goals.

Learn more about our partnerships with Arizona communities committed to clean energy.


Management takes into consideration climate change and other environmental risks in its strategy development, business planning and enterprise risk management processes.

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Oversight. The Chairman of the Board, President and Chief Executive Officer of Pinnacle West and the Chairman of the Board and Chief Executive Officer of Arizona Public Service Company, has the highest level of direct responsibility for managing risk, including climate change and greenhouse-gas risks that directly or indirectly affect our mission and vision.

The Nuclear and Operating Committee is responsible for the oversight of the company’s sustainability initiatives and strategy and environmental, health and safety (EH&S) policies and practices. The committee periodically reviews, with management, principal risks related to or arising out of our nuclear, fossil generation, transmission and distribution, EH&S operations or other matters addressed by the committee. In addition, the Corporate Governance and Public Responsibility Committee reviews significant environmental, social and governance (ESG) trends that may impact us, ensure the oversight of relevant ESG issues by the Board and its committees and make recommendations to the Board as appropriate.

Learn more about our Corporate Governance .

Low-Carbon Principles. APS's transition to clean energy will contribute to a future low-carbon economy that will create growth opportunities while providing environmental benefits. APS developed a set of principles to guide our path toward a low-carbon economy.

Read the APS Low-Carbon Principles.

Green Bond. A green bond is a type of fixed-income instrument with proceeds allocated to fund projects with environmental benefits. APS issued its inaugural green bond in September of 2020. Through this offering, we issued $400 million, which can be used to support projects such as renewable generation, energy storage, energy efficiency programs, climate change mitigation and clean transportation.

Learn more about our green bond and expenditures.

Fleet and Facilities

We work internally to reduce our carbon footprint by working toward a clean goal for our vehicle fleet and by looking for opportunities to reduce energy use at our facilities.

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Fleet: In July of 2020, we set a goal of transitioning 30% of our light-duty vehicles and equipment (comprised of forklifts, all-terrain vehicles, golf carts and light-duty passenger vehicles) to electric by 2025 with an aspirational goal of achieving a 100% clean, carbon-free fleet by 2050. As of the end of 2021, we have electrified 13% of our light-duty vehicles and equipment and have placed an order for our first round of fully electric light-duty pickup trucks.

Our transportation fleet’s conversion to more fuel-efficient vehicles and electrification continues through market research and updates to our electrification strategy. We are monitoring medium-and heavy-duty options and will adopt them once there is more commercial availability. Through this ongoing conversion and by using our fleet more efficiently, we are working to reduce carbon emissions and operating costs.

APS has also adopted idle-mitigation technology as part of a standard package offered on trouble trucks, allowing workers to run laptops and air conditioning without keeping the vehicle running. In addition to reducing our carbon footprint, this decreases noise when working in residential neighborhoods. Our Odyne bucket trucks use less fuel and have quieter operations than traditional diesel or gasoline engine trucks by using battery-assisted drivetrain and electric power takeoff (ePTO) technology while operating the bucket. We will continue to evaluate new idle-mitigation technology for adoption in our larger trucks for cost savings and carbon emission reduction opportunities.

Facilities: Our commitment to reduce our environmental footprint through sustainable practices is evident throughout our APS occupied facilities. Over the past 13 years, APS has achieved 17 Energy Star labels across our building portfolio, including three last year at our Deer Valley Training Building, Flagstaff Service Center Warehouse and Paradise Valley Service Center. APS was also able to achieve significant reductions of total greenhouse gas emissions from internal facilities (39 benchmarked APS properties across 17 cities in AZ, totaling 1.1M square feet) required to support the business from 2020 to 2021 totaling 1,205 metric tons of CO2e.

While sustainable solutions are integrated into our sustainability efforts, we are also designing for tomorrow through the implementation of our Workplace of the Future initiative. This effort increases the efficiency of how we use space and enables greater flexibility to support the evolving needs of our business and employees. In 2021, our Facilities team was able to further optimize workspace to meet the changing needs of our workforce. The final phase of the renovation of a building on our Deer Valley Campus was completed, increasing the number of workers the building can support by 159%.

Learn more about how data architectural pieces of our Deer Valley campus were reused.

At our headquarters building, we consolidated two of our business units from occupying almost four floors into less than two floors, while still meeting the needs of their day-to-day business. These projects included a combination of working, meeting and collaboration areas that bring people together in an energizing, engaging, employee-centric atmosphere. The design incorporated many sustainable elements including the use of natural lighting, daylight harvesting, LED lighting fixtures, more efficient HVAC systems, a more robust trash-recycling program and sustainably-sourced furniture. Once we safely return to the office, we will monitor and measure the effectiveness of the implemented strategies and incorporate what we learn into future projects.

To support further reduction of carbon emissions from fleet and employee vehicles, APS deployed 35 employee and fleet vehicle charging stations in 2021, an increase of almost 53% in charging capacity. The company continues to assess the market and the changing needs of our employees and our fleet to make sure we are installing charging stations to meet future needs.

Going forward, along with our Workplace of the Future effort, proactive assessments of the health and use of our buildings, utilization of the most current technologies as we renovate, reusing materials where possible and further replacing ozone-depleting technologies will guide our decision-making. We will continue to design, construct, operate and maintain our new and remodeled facilities to ENERGY STAR standards and LEED principles.

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