Xcel Energy Inc. · NASDAQ:XEL
Xcel Energy — Technical Presentation (2023)
18 slides from Xcel Energy's technical presentation, Aug 20, 2023
Slide 1: System Resources: Commercially Available Technologies
SYSTEM RESOURCES Commercially Available Technologies © 2023 Xcel Energy
Slide 2: System Resources – Commercially Available Technologies
System Resources – Commercially Available Technologies Renewable Storage Firm/Dispatchable Wind BESS1 CTG2 Solar CC3 1) Battery Energy Storage System (“BESS”) 2) Combustion Turbine Generator (“CTG”) 3) Combined Cycle (“CC”) Xcel Energy’s Sandhill Solar Farm, CO. Xcel Energy’s Sagamore Wind Farm, NM.
Slide 3: Commercially Available Technology: Modeling Benefits
System Resources – Commercially Available Technology Modeling Benefits • Current market established cost and production profiles − Actionable near-term modeling results (this decade) - Predictable − Cost established − Time to market established − Current infrastructure certainty – Reuse of existing
Slide 4: Commercially Available Technology Attributes
System Resources – Commercially Available Technology Attributes Attribute Wind Solar BESS3 Long Duration BESS4 Firm and Dispatchable No N0 Yes Yes Limited Duration N/A N/A Yes Multi-day Proposed Accreditation Method ELCC2 ELCC2 ELCC2 TBD Summer Capacity Accreditation ~20% ~75% >95% TBD Winter Capaci
Slide 5: Renewable – Wind
System Resources – Renewable – Wind • Convert’s the wind energy into electricity • Large, three-bladed Wind Turbine Generators (“WTGs”) aggregated to produce hundreds of MWs • Intermittent resource • Capacity factors range from 45%-55% in eastern New Mexico. • Moderate capacity accreditation due to
Slide 6: Renewable – Solar (PV)
System Resources – Renewable – Solar (PV) • Convert’s the sun’s energy (photons of light) into electricity • Several forms: Photovoltaic (“PV”), concentrating PV, or concentrating solar power • Intermittent resource • Capacity factors range from 30%-35% in eastern New Mexico • Max output occurs prio
Slide 7: Storage – BESS
System Resources – Storage – BESS • Power from Electrochemical Process, or other Potential Energy Sources (springs, gravity, etc.) • Various battery chemistries available, Lithium-ion most currently most prevalent • Storage typically ranges in size from 10 MW to over 250 MW for durations from 2 to 8
Slide 8: Storage – Long Duration BESS
System Resources – Storage – Long Duration BESS • Battery Energy Storage (“BESS”) Long Duration: • Long duration, multi-day − Form Energy’s Iron-air BESS – 10MW/100-hour storage duration − Xcel Energy has two pilot projects underway planned for our Northern and Colorado sister utilities − Uses elect
Slide 9: Commercially Available Technology Attributes
System Resources – Commercially Available Technology Attributes Attribute CTG CC Future CTG2,3 Future CC2,3 Firm and Dispatchable Yes Yes Yes Yes Limited Duration No No No No Proposed Accreditation Method PBA1 PBA1 PBA1 PBA1 Summer Capacity Accreditation >95% >95% >95% >95% Winter Capacity Accredita
Slide 10: Thermal – CTG
System Resources – Thermal – CTG • Typically referred to a simple-cycles because they operate on a single thermal cycle known as the Brayton Cycle • Operate utilizing several established fuel sources but are traditionally fired with natural gas with a backup fuel such as fuel oil • Available in a wi
Slide 11: Thermal – CC
System Resources – Thermal – CC • Utilize CTGs in conjunction with Heat Recovery Steam Generators (“HRSGs”) and a Steam Turbine Generator (“STG”) • Referred to as CCs because they combine the thermodynamic Brayton and Rankine Cycles • Exhaust heat from the CTG(s) are ducted through the HRSG(s) to ge
Slide 12: Emerging Technologies: Hydrogen
System Resources – Emerging Technologies Hydrogen (H2): • Green ➢ Hydrogen produced using surplus renewable energy resources, such as solar or wind power, to power an electrolyzer which splits water into hydrogen and oxygen (process known as electrolysis) • Blue ➢ Hydrogen produced from natural gas
Slide 13: Emerging Technologies: Carbon Capture and Storage
System Resources – Emerging Technologies Carbon Capture and Storage/Sequestration (“CCS”): • Carbon Dioxide (CO2) chemically separated from combustion exhaust • Capable of exceed 95% efficiency • Often stored in geological formations or other forms for reuse in other processes © 2023 Xcel Energy 13
Slide 14: Emerging Technologies
System Resources – Emerging Technologies Emerging Technologies: • The following discussion is not an exhaustive list nor are major technical details discussed • Material is meant to inform at a high level of some of the emerging technologies that might be of interest to stakeholders. • If more infor
Slide 15: Emerging Technologies: Small Modular Reactors
System Resources – Emerging Technologies Nuclear – Small Modular Reactors (SMRs): • As the name implies, modular scale of proven nuclear reactor designs • Fully factory fabricated power modules (~77 MW) − E.g. - NuScale plants from ~ 230 MW – 900 MW − Reduces the financial risks associated w/ conven
Slide 16: Emerging Technologies: Linear Generators
System Resources – Emerging Technologies Linear Generators • Reaction vs combustion • Modular − ~1.5MW/module • Natural gas or biogas fuels • 100% H2 Capable Source Image: Mainspring Energy © 2023 Xcel Energy 16
Slide 17: Modeling Emerging Technology
System Resources – Modeling Emerging Technology • “Place holders” representative of technology types available for the model to select • What would stakeholders prefer to model, need suggestions by July 6 preferably © 2023 Xcel Energy 17
Slide 18: Questions?
QUESTIONS ? © 2023 Xcel Energy