Energy and Buildings

San Antonio is #1 in Texas and #5 in the US for Solar!

Buildings in San Antonio

Our Energy Use

Energy Consumption

San Antonio is changing how we look at our energy needs. We treat our energy use with thought, purpose, and respect. Reducing the amount of energy we use each day will save us money, protect our air, and water and conserve our fuel supplies so they can last longer. Reducing our energy use is an important step in leading healthy lives.

UNIT
Energy from different sources is measured in different ways – electricity is measured in kWh, natural gas in therms, oil in gallons. We can convert these different measures into a common measure- million British Thermal Units (MMBTU) -to better understand and compare total energy use.
MMBTUMillion British Thermal Units

Our Energy Use

San Antonio Energy Use by Sector

In 2019, San Antonio used nearly 23 million MWh of electricity.  Most of this energy was used in our homes (43.4%) and in commercial stores and industries (41.9%). Public authorities made up approximately 12%. Wholesale electricity buyers made up just over two percent and outdoor lighting accounted for less than half of one percent.

Logo for CPS Energy Save Now Program

Did you know?

CPS Energy created their Save for Tomorrow Energy Plan (STEP) to reduce the growth in our community’s demand for electricity by 771 MW by 2020. That’s the output of a large power plant! Check out the great work this program has already done!

CPS Energy STEP Program

Our Energy Use

Annual Electricity Use

San Antonio has seen a 1% increase in the amount of electricity we have consumed each year since 2015. As a community, we need to put more effort into adopting the technologies and habits needed to reduce our electricity needs.


A megawatt hour (MWh) is equal to 1,000 kilowatts of electricity used continuously for one hour. It is the amount of electricity used by about 330 homes during one hour.

wind turbines

Renewable Energy

Wind, Solar, and Landfill Gas

San Antonio is looking to lead the nation in the generation and delivery of clean, reliable, affordable energy. CPS Energy, our energy provider, is the nation’s largest municipally owned energy utility and is committed to growing its supply of emission-free electricity from wind, solar, and landfill gas.

Renewable Energy

Renewable Capacity Targets

CPS Energy has recently increased its renewable energy  goal to have 50% of its electrical generation capacity to come from renewable energy by 2040. With an increase of 10% in the 5 years between 2014 and 2019, they are well on their way to meeting this goal.

Through the FlexPower initiative, CPS is making strides to bring more renewables online and use leading edge technology to modernizing the energy grid in San Antonio.

Source: CPS Energy Generation Capacity (GCAP) Reports

Renewable Energy

CPS Energy's Renewable Energy Mix

CPS Energy gets 65% of its renewable energy from wind, 34% from solar and 1% from landfill gas.

The solar portion here includes both utility scale solar as well as individual rooftop systems that are contributing to the local grid and helping to make San Antonio #1 in solar generation capacity in Texas and 5th in the entire US! 

Source: CPS Energy Generation Capacity (GCAP) Reports

Renewable Energy

San Antonio Solar PV Systems

The energy supply from CPS Energy includes 609 MW of solar capacity from around the region, enough energy to power over 120,000 homes. The majority of this energy is "utility scale" (meaning the energy goes directly onto our electricity grid and does not first supply energy to a building). The rest of our solar energy comes from smaller systems found on homes and buildings.

Utility Scale

Renewable Energy

National Leader in Local Solar

San Antonio has been in the top 10 cities for solar capacity since 2016 and as of 2019 is  5th in the Nation for installed capacity. We've achieved this status in large part thanks to the variety of forward thinking CPS Solar Energy Programs. Whether you own or rent, resident and or business owner; there are many ways for you help drive the transition to clean electricity in San Antonio!

rooftop solar on commercial buildings

Did you know?

The City of San Antonio participates in CPS Energy’s SolarHostSA Program, which installs, operates, and maintains solar installations on City facilities. Currently, we have solar panels on five facilities and look to double that number within the year!

CPS Energy - Solar HostSA
a modern home

Better Buildings

Building a Sustainable Future

San Antonio seeks to incorporate more sustainable practices within the physical structures of the City's built environment, specifically our buildings, water and sewer lines, stormwater systems, wastewater treatment facilities, and other infrastructure. By making these more sustainable, we will reduce our energy and water use which will make our air cleaner and our environment healthier.

San Antonians are fortunate as there are three different ways they can get their homes and businesses recognized for incorporating sustainability aspects into their designs. They include a local initiative called Build San Antonio Green (for homes, multifamily and commercial) and two national initiatives, Energy Star and LEED for all building types.

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There are different standards and levels for “green” building. This metric looks at the total for all types of green buildings including Build San Antonio Green, EnergyStar and the US Green Building Council’s Leadership in Energy and Environmental Design (LEED).
#Number of Green Buildings

Better Buildings

Build San Antonio Green Homes

When a home, apartment or commercial building is certified by Build San Antonio Green (BSAG), it meets a rigorous set of criteria to ensure it is green in all areas. Owning a BSAG home means you will enjoy lower utility bills and higher comfort, and a lessened impact on the environment. A Build San Antonio Green Home is designed to be 15% more efficient than a home built to code.

San Antonio has a goal to have 25,000 homes certified through the Build San Antonio Green Program by 2040. By the end of 2018, we will have met 27% of this goal by having 6,655 homes awarded this certification. These BSAG homes have reduced San Antonios' peak energy demand by 10.5 megawatts each year. This is equivalent to the electricity used in 7,350 homes.

Data Source File

front entrance to City Hall

Did You know?

The City of San Antonio developed an energy policy, called The Facility Design Guidelines and Standards, which requires all City-owned and managed buildings and operations to incorporate sustainable design and energy efficiency principles. These guidelines also provide the foundation for including sustainable practices on municipal facilities and to further reduce our environmental impact of our government operations.

San Antonio Facility Design Guidelines
the high performing Development Services Department Building

Better Buildings

Benchmarking & Disclosure

Reaching our goals for energy efficiency will need both engagement by the private sector and a way to better track our progress. Building benchmarking and disclosure is a key strategy to advance both of those requirements. By increasing transparency in building performance, building owners will be incentivized to race to the top. As the savings and recognition enjoyed by owners and tenants the most efficient buildings are made visible efficiency will be sought after more and more. Unleashing market forces in this way has had impressive results in other cities, including: 

  • Chicago: Energy consumption down 5.2% from 2014 to 2018. $15.1 million bill savings per year.
  • Minneapolis: Energy consumption down 3.4% from 2014 to 2016. $21 million bill savings per year.
  • Denver: Energy consumption down 4.5% from 2017 to 2018. $13.5 million bill savings per year.
  • New York: Energy consumption down 10% from 2010 to 2015.
  • Seattle: Energy consumption down 3% from 2014 to 2015.
  • San Francisco: Energy consumption down 7.9% from 2010 to 2014.

Learn more about the effort on the City of San Antonio’s Energy Benchmarking and Disclosure for Buildings webpage.

Better Buildings

Certified Green

Top performing buildings can receive certifications that demonstrate their performance and their building owner's commitment to managing their properties sustainably. Certifications can be granted as new green buildings are built, but many of them receive certifications for being run efficiently regardless of when they were built.

The Energy Star program run by the US Environmental Protection Agency focuses on just energy performance and recognizes buildings that are among the top performers among their peers nation wide.

The LEED rating system certifies buildings at several different levels of performance and incorporates a range of other sustainability criteria into their scoring criteria. In addition to the commercial facilities here, there are over 380 LEED Certified single family homes in San Antonio as well.

As building energy benchmarking and reporting becomes the norm, we expect expect to see many more building owners to strive for certification to stand out among their peers. 

Better Buildings

Every Little Bit Helps! Make Your Home/Building Greener!

We all need to play a role in using our natural resources more selectively. By developing our buildings and infrastructure to still perform the way we want them to while using less fuel, water, and other resources, we are making strides in the right direction. Learn more about how you can do more with less.


Find out how to make your new home or newly renovated home green!

Build San Antonio Green
Hire an Energy Rater to identify the biggest potential for improvements in your home!

BSAG Energy Raters
If you need a new roof or other minor home repairs but cannot afford it, check out the assistance our Neighborhood and Housing Department can offer you.

San Antonio Minor Home Repair Program
installing solar panels on roof
energy efficient home

Better Living

Household Energy Burden

In addition to building better structures, we need to work on reducing energy use in existing buildings, including across the many homes in our community.

The portion of household income that is spent on energy takes away from spending on other necessities and investments to get ahead and live a happy life.  On average San Antonio households spent 3% of their income on energy, but those earning less put a much higher proportion of their income towards energy costs.  

Households with a "high energy burden" spend over 6% of their income on energy and 22% of San Antonio households meet that level. Even worse, there are over 88,000 households in San Antonio with a severe energy burden in excess of 10% of income.

When we invest in energy efficiency in our community, it is not only to protect the climate, but also to build a more financially resilient community.

Energy Burden Data from American Council for an Energy Efficiency Economy (ACEEE) 2020 Household Energy Burden Report

Better Living

Our situation got a whole lot better...I'm very grateful

The Maldonado Family saved hundreds of dollars on their CPS Energy bill while making their home energy efficient.

Better Living

Be Part of the Solution!

All San Antonians have a role to play to reduce the amount of energy they consume each day. Also, we have choices on where we get that energy from. Learn about how the City makes it easier to use less energy and switch to renewables!


Get energy saving tips!

CPS - Energy Efficiency Programs
Find out if solar energy is right for you!

Bring Solar Home
Get your home weatherized for free!

CPS Energy Casa Verde
solar workers on roof