Emission and zero-carbon program information

Learn about the progress we're making toward our 2030 goal of providing carbon-free power to our customers.

Data on this page will be updated within 4 weeks of the end of each quarter. This data is for informational purposes only, and should not be used for planning purposes. Data is subject to change without notice.

Learn about our 2030 Clean Energy Vision
2023 Zero Carbon Plan Progress Report

Quarterly generation and emissions from gas plants

  Energy generated from gas plants we control in 2023

1,237
(GWh)
Q1 2023

  

775
(GWh)
Q2 2023

  

1,896
(GWh)
Q3 2023

  

1,824
(GWh)
Q4 2023

We expect to generate 6,619 GWh of energy from gas plants we control in 2023.
 

CO2 Gas plant emissions for load and market sales*
Greehhouse gas emissions chart. 2023 planned greenhouse gas emissions are 2.4 million metric tons. Bar chart shows breakdown of emissions by Cosumnes Power Plant, Thermal plant contracts and cogen and peaker plants. Specific data is highlighted in accompanying tables. 

 

  Q1 2023 Q2 2023 Q3 2023 Q4 2023
Thermal plant contract 153k MT CO2e 33k MT CO2e 175k MT CO2e 184k MT CO2e
Cosumnes Power Plant 138k MT CO2e 168k MT CO2e 388k MT CO2e 377k MT CO2e
Cogens and peaker plants 208k MT CO2e 103k MT CO02e 169k MT CO2e 141k MT CO2e
 Total 499k MT CO2e 304k MT CO2e  732k MT CO2e 702k MT CO2e

Note: Cosumnes Power Plant and the cogen and peaker plants are SMUD-owned resources.

*SMUD's GHG emissions are estimated based on the amount of power generated at  SMUD's gas plants and power purchased from the Calpine Sutter gas plant.  The planned and actual GHG emissions from our fossil fuel generation reflect total emissions to serve SMUD customer energy needs and market sales to support California and other neighboring states. GHG emissions are estimated using 2022 emissions factors, which is the most recent year that the California Air Resources Board (CARB) verified data is available for.

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Solar and storage installations

 
""
 Total solar installations*

Over 52,500 customers have installed rooftop solar, totaling more than 359 MW of energy in SMUD territory.

Chart showing residential and commercial solar installations, broken down by retrofits and new construction. In 2022 there were 3,100 retrofits and 4,190 new construction installs. In Q1 2023, there were 597 retrofits and 976 new construction installs. In Q2 there were 575 retrofits and 866 new construction installs. 

*These are completed/installed systems. SMUD has inspected the site and given approval for the system to operate.

 

""
 Total battery storage installations

Over 1,500 customers have installed battery storage, totaling more than 13 MW of storage in SMUD territory.

Chart showing residential and commercial battery installations. In 2022 there were 516 installs. In Q1 2023, there were 135 installs.

 

Zero carbon program and project statuses

We'll achieve our 2030 goal through the success of different projects, programs and activities. Utility-scale projects will help ensure we can continue to provide safe, reliable service using carbon free energy.

Participation in residential and commercial customers programs will help us bridge the gap to meet our goal and help improve our regional air quality. Program adoption depends on a variety of factors. Participation numbers may vary quarter-to-quarter depending on these factors.

We calculate an all-electric equivalent home by combining electrification projects such as a heat pump HVAC at one home, a heat pump water heater from another home and an induction cooktop from another home. Added together, they make one all-electric equivalent home. We also include 100% all-electric single family and multifamily homes.

All electric equivalent homes   All electric homes by 2030 

 

  2022
final		 Q1
2023 		 Q2
2023		 Q3
2023		 Q4
2023		 2023
goal
Heat pump HVAC conversion 2,108 510 1,120 2,054 2,914 2,180
Heat pump water heater conversions 897  191 373 525 940 1,000
Induction cooktop conversions 257  84 199 301 386 300
All-electric new home & multifamily units constructed 1,299  158 580 1,331 1,925 750
Multifamily units retrofitted 954  0 407 849 1,113 500
All-electric equivalent homes (cumulative) 57,000  57,925 59,400 61,283 62,890 61,287

Electric vehicles
   EV by 2030 

 

  2022
final		 Q1
2023 		 Q2
2023		 Q3
2023		 Q4
2023		 2023
goal
Residential EV chargers installed (rebates issued) 577 300 1,965 2,901 5,045 500
Commercial EV chargers installed (rebates issued) 349 42 92 281 367 355
Residential EV Rate participants (cumulative) 17,229 19,027 20,367 21,933 23,329 22,620
E-Fuel Solutions projects n/a  0 0 0 2 4
Number of light duty EV's in service territory (cumulative) 32,396 34,796 38,959 43,256 46,504 39,000

Distributed Energy Resources DER   DER by 2030 

 

  2022
final		 Q1
2023 		 Q2
2023		 Q3
2023		 Q4
2023		 2023
goal
My Energy Optimizer® Smart thermostats (cumulative) 12,503 16,119 18,507 21,405 23,802 16,000
My Energy Optimizer Starter batteries (cumulative) 144  218 266 300 328 306
My Energy Optimizer Partner+ batteries n/a  0 0 33 80 400
Peak Conserve℠ (NextGen ACLM) enrollments
 n/a  0 219 948 1,338 2,000
PowerDirect Total MW (cumulative)  18 18 18 20.5 21.2 20
Total MW (cumulative) 30 34 36 42 46 41

To help us achieve our goal of carbon-free power by 2030, we're working on a variety of utility-scale projects to increase our portfolio of carbon-free energy and improve reliability. Below are projects we're currently working on or have completed.

 

Status Project name Added capacity Energy source Description
In Progress ESS 4 MW/
24 MWh		 Battery Storage

Battery Storage pilot project in partnership with ESS, a manufacturer of long-duration iron flow batteries for utility-scale energy storage applications, will install a mix of long-duration energy storage (LDES) solutions integrated with our grid. Phase 1 pilot targets demonstrating up to 4 MW/24 MWh at our Hedge facility. Construction of a 450 kW/2400 kWh storage system began in April 2023 and is expected to be operational by Spring 2024. Design is underway for an approximately 3.6 MW/29 MWh (8-hour duration) storage system with installation planned for 2026.
In Progress Solano 4 91 MW Wind The project scope includes decommissioning Solano 1 by removing 23 wind turbines in April 2023. The project scope also includes the installation of 19 wind turbines (9 in Solano 4 East and 10 in Solano 4 West). Construction on the new turbines started in April 2023, with expected completion in May 2024. Once the Solano 4 project is complete, SMUD Solano Assets (Solano 2, 3 & 4) will have a total installed capacity of 300 MW.
In Progress Country Acres 344 MW/
172 MW		 Solar/Storage

SMUD Board approved the Final EIR on April 20, 2023. Placer Planning Commission and Placer Conservation Authority Approved the Project and Mitigation Agreement on January 11 & 17, 2024, respectively. The Board of Supervisor approval is targeted for February 20, 2024. Construction is targeted to begin in the second half of 2024 and the project is scheduled to be online in 2026.
In Progress Coyote Creek 200 MW/
100 MW		 Solar/Storage

SMUD is in contract with DE Shaw for the procurement of energy for the Coyote Creek project. DE Shaw is currently in the environmental review process. The scope of the Coyote Creek project includes 200 MW Solar coupled with 100 MW x 4hr battery storage. 
In Progress Sloughhouse 50 MW Solar SMUD is in contract with DE Shaw for the procurement of energy for the Sloughhouse project. The scope of the project is a 50 MW solar installation. Design, environmental review and permitting are in progress. The project is forecasted to be completed early 2025.
Complete (2023) Hedge 4 MW Battery Storage Commercial operation of the Hedge Lithium Ion Battery Energy Storage System began in January 2023. The system will provide 4 MW of electricity and 8 MW-hours of storage that can be tapped when other energy resources are strained—enough to power 800 homes for 2 hours with clean, renewable energy.
Complete (2023) Calpine 100 MW Geothermal January 2023 marked the beginning of the 10-year PPA of energy from Calpine’s operations at The Geysers, which adds 100 MWs of geothermal energy to SMUD’s portfolio—enough to power about 100,000 homes for a year. The Geysers is the single largest geothermal electric operation in the world.
Complete (2022) Drew Solar 100 MW Solar The Drew Solar Project, completed in 2022, is a 30-year Power Purchase Agreement (PPA) for 100 MW Solar. Located in Imperial County, it has an expected output of 282,000 MWh/year.

Want to learn more about how much power our customers are using and where the power is coming from.

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