Xcel Energy Inc. · NASDAQ:XEL
Xcel Energy — Corporate Update (May 2023)
10 slides from Xcel Energy's corporate update, May 23, 2023
Slide 1: Valmont Generating Station Ash Recycling/Beneficiation Process
VALMONT GENERATING STATION Ash Recycling/Beneficiation Process – Charah Solutions and Geocycle May 23, 2023 Public Meeting/Open House © 2023 Xcel Energy 1
Slide 2: Ash Recycling/Beneficiation Overview
ASH RECYCLING/BENEFICIATION OVERVIEW • Excavate historic ash from landfill in stages, screen and blend • Dispose of screened reject materials in landfill Cell D and cap • Reclaim areas after ash is removed to state-approved specifications • Transport ash to recycling equipment for processing • ASTM
Slide 3: Ash Removal, Recycling, and Material Flow
Ash Removal, Recycling, and Material Flow Charah to operate landfill and Geocycle to operate recycling equipment • Remove 1.8 million tons of ash from landfill • Combined with 200,000 tons from Cherokee • Storm water, erosion, and dust control plans • Reclaim and revegetate areas after ash is remove
Slide 4: Landfill Removal, Reject Disposal, and Reclamation
Landfill Removal, Reject Disposal, and Reclamation Engineering Design and Operations Plan (EDOP) for excavation • Fugitive Dust, Stormwater, Safety • West and east cells are blended to Cell D meet initial specification for processing • Prioritizes areas of greatest groundwater impact (see Station 3,
Slide 5: Ash Recycling/Beneficiation Equipment Location at Valmont
Ash Recycling/Beneficiation Equipment Location at Valmont Adjacent to existing plant buildings and equipment • Former coal pile area • Process equipment and truck queuing area to be loaded • Utilize existing baghouse • Integrated for process cooling • Process air emissions controls • Finished produc
Slide 6: Ash Beneficiation Equipment Location at Valmont
Ash Beneficiation Equipment Location at Valmont Street view from 63rd Street showing maximum heights of equipment © 2023 Xcel Energy 6
Slide 7: Ash Recycling/Beneficiation Equipment – Concrete Uses
Ash Recycling/Beneficiation Equipment – Concrete Uses Meeting ASTM specs for cement – DOT specs for transportation infrastructure • Rotary Drum Drying • Removes excess water and mixes • Thermal Carbon Removal • Removes unburnt carbon and organics • Size Reduction • To meet ASTM/quality control speci
Slide 8: Beneficiated Ash Sold in Local Concrete Market
Beneficiated Ash Sold in Local Concrete Market Finished product shipped directly to users as Portland cement substitute ECOPact – Low Carbon Concrete © 2023 Xcel Energy 8
Slide 9: Ash Beneficiation - Community Interests and Benefits
Ash Beneficiation - Community Interests and Benefits Traffic • Similar to when Valmont was operating on coal • 24 round trips per day, mostly off-peak commuting hours • On-site temporary parking before loading • Fully-enclosed pneumatic (air enclosed) trailers • Movement-controlled intersection at A
Slide 10: Environmental, Social and Governance - ESG
Environmental, Social and Governance - ESG 2022 ESG AT A GLANCE FOR CHARAH ESG AT A GLANCE FOR GEOCYCLE 0.55 TOTAL 459K METRIC TONS RECORDABLE CO2 SAVED 12.96 MILLION INCIDENT RATE WITH LOW CARBON PRODUCTS IN 2022 TONS OF CCRs HANDLED (INDUSTRY AVERAGE IS 3.1) 2.79 MILLION A THREE-YEAR AVERAGE 1 MIL