[{"_1":2,"_123":-5,"_124":-5},"loaderData",{"_3":4,"_26":27},"root",{"_5":6,"_17":10,"_18":19,"_20":21,"_22":10,"_23":-5,"_24":-5,"_25":10},"user",{"_7":8,"_9":10,"_11":10,"_12":-5,"_13":-5,"_14":15,"_16":-5},"roles",[],"isAuthenticated",false,"isPremium","planName","subscriptionStatus","featureFlags",{},"insightsBudget","isDevelopmentHost","userPreferences",{},"recaptchaSiteKey","6LcvOJcUAAAAAHsB-gPGfGktcRlKpH7OTIU_dMTD","isImpersonating","impersonation","affiliateStatus","isFreedomPortal","routes/v2/article/layout",{"_28":29,"_30":31},"notFound",true,"relatedArticles",[32,75,87,99,111],{"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":46,"_47":48,"_49":50,"_51":52,"_53":54,"_55":56,"_57":58,"_59":60,"_61":62,"_63":64,"_65":66,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},"mediaId",6336693,"mediaKeyId","2282195-fdcc757db6e1931e33dfea89cbe1b44d","parentId",2282195,"title","Utility Exploration Center reopens, expands school programs and attracts tens of thousands of visitors","audioSeconds",1291,"startMs",3732000,"endMs",5023000,"viewUrl","/Search/View?dp=1&key=2282195-fdcc757db6e1931e33dfea89cbe1b44d&start=3732&end=5023","thumbnailUrl","https://assets.pipeline.soar.com/2282195-fdcc757db6e1931e33dfea89cbe1b44d/thumbnail_3732000.jpg","articleUrl","/articles/6336693/Roseville/Placer-County/California/Utility-Exploration-Center-reopens-expands-school-programs-and-attracts-tens-of-thousands-of-visitors","mediaUrl","https://secure.pipeline.soar.com/6336693-ca31df6958085cc9662d6b3251ac1ad1/orig.mp4?Expires=1770892044&Signature=Pe3g9nuUAuDod6hYl09UskZzzVO5ysJQ8JK7ZmcTdrTqZZ9BXj7bgp1096FcKvHPpJf0547SAshRe-~IVovvQD7T18fxT6e47sKUs6esAGZr4qL2gehgsgwEjeVg3kL36qeVO4ckTPlqZ2k6oP-9t6KcH11UjUWKHfHczcS53A50YjKjViKV0frWwtzFa8nYj8HNRYZJB3HZpQ~3q5ApbL0XDEAlZ0j5adf0dkol1cOdtgwAiAKyBNFtGzeI3Fb4O8B-50NxcRLo6sxkhPzzxl3sILcAM-P9neIUkJaQRSFmbmyk9TC7AwGnJEp5g8HCkfDq7soNQ~1lwxJu9E3XcA__&Key-Pair-Id=KUT5TJCACFTXG","author","CityofRosevilleCa","date","2025-01-28T00:00:00Z","article","Brandon Mitchell, Utility Exploration Center supervisor, told the Public Utilities Commission on Jan. 28 that the center reopened on April 6, 2024 after a multi-month remodel and that attendance and program participation increased sharply following the reopening.

Mitchell said the center closed for roughly three and a half months in late 2023 to install new exhibits and reopened with a ribbon-cutting on April 6, 2024. He reported that from April through December 2024 the center served more than 39,000 visitors and that attendance in the fourth quarter of fiscal 2024 more than made up for the closure period.

Education programs expanded in 2024: the center continued kindergarten-through-fifth-grade programming, fully rolled out a middle-school curriculum (grades 6–8) covering water conservation, food waste and energy, and increased high-school outreach including field days and facility tours of the Roseville Energy Park and the Pleasant Grove wastewater treatment plant. Mitchell said the center served roughly 7,000 K–12 students in the most recent fiscal-year comparison and expanded after-school offerings (League of Explorers), workshops for adults and internship pathways with local high schools.

Mitchell highlighted awards and outreach: the field day program earned a CASA Excellence in Public Outreach and Education award and a 3CMA Savvy Award, and staff advised other municipal utilities on starting similar career-day programs. He described West Park High School’s new career and technical education pathway in energy, environment and utilities and noted a local student intern success story.

Community events were also active: Mitchell said Earth Night (scheduled April 17) and the Big Truck Summer series (weekly Thursdays in June) drew thousands; Big Truck Summer’s monthly total attendance was about 4,000 across four events, with waste services drawing about 1,400 visitors, electric and wastewater events drawing about 900 each, and water about 750.

Ending: Mitchell asked commissioners to visit the center and said staff will continue to expand school partnerships and career outreach.","mediaType","Video","parentTitle","Public Utilities Commission of January 28, 2025 - City of Roseville, CA","oneSentenceSummary","The Utility Exploration Center reopened April 6, 2024 after a remodel and served more than 39,000 visitors from April to December 2024, officials told the Roseville Public Utilities Commission on Jan. 28.","taxTitle","Roseville, Placer County, California","taxId",3668,"location","headline","","shortSummary",{"_33":76,"_35":36,"_37":38,"_39":77,"_41":78,"_43":79,"_45":80,"_47":81,"_49":82,"_51":83,"_53":84,"_55":56,"_57":58,"_59":85,"_61":62,"_63":64,"_65":86,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},6336701,"NCPA 'STIG' unit at Lodi faces decommissioning or repower; Roseville to consider $2.3 million study deposit",1154,1817000,2971000,"/Search/View?dp=1&key=2282195-fdcc757db6e1931e33dfea89cbe1b44d&start=1817&end=2971","https://assets.pipeline.soar.com/2282195-fdcc757db6e1931e33dfea89cbe1b44d/thumbnail_1817000.jpg","/articles/6336701/Roseville/Placer-County/California/NCPA-STIG-unit-at-Lodi-faces-decommissioning-or-repower-Roseville-to-consider-23-million-study-deposit","https://secure.pipeline.soar.com/6336701-2039746a2a423a4c594209c8a79e3a80/orig.mp4?Expires=1770892044&Signature=IAF9RpfqKUwFyPtCiXn51oO9Z6rGBWbY7dujOgJQRFFZVM3ginCpZeIrQOqGrzReWuILfcsNQ~bwzcUSa5BJgwOq5cxn0TSdWKsRlIqVSeAGZQuEQq20Z321DbEMNtTd5Jz5GxIiFP9PnO9-NqY4hkBaYzhDB8Fka2UNWguqzJM8Xt77XMrOEx3vvp~P4XERkazqorwhrQ1qrCbWIYq1gw5DC-69Jx5AmaxoeEWjhDkXUnlAPgKC-s4PGQAHpIv2a9QbhfVXKf5DuRHXV-4oa2-wyZWgfS17WLBuhcHuVj3qlnK-nZZan11lHCyK--wnGmhZWLX0iJd00eKZJzqNOg__&Key-Pair-Id=KUT5TJCACFTXG","Roseville Assistant Electric Director Bill Forsyth and Power Supply Administrator Petra Wallace told the Public Utilities Commission on Jan. 28 that a 49.9-megawatt steam-injected gas (STIG) turbine owned through the Northern California Power Agency (NCPA) was declared unsafe to run in December 2024 and is now at an end-of-life decision point.

“Because we don't have blast walls adjacent to the turbine, you need to expect it could just completely fall apart,” Forsyth said, describing outside-engineer findings that followed escalating vibration and tripping events in October and December. NCPA participants must decide whether to decommission the unit or repower it with a newer turbine model.

Wallace presented cost estimates. Full decommissioning and site restoration was estimated at about $21 million total, which would leave Roseville with a share near $8 million. Repowering the site with a GE LM6000 and supporting work was estimated at roughly $48 million total; because the city of Alameda opted out of repowering, Roseville would assume a larger share and its estimated repower cost liability would increase to about $21 million. Wallace said NCPA would next pursue a second-phase agreement to fund surveys, design, schedule development and a deposit for a GE LM6000; the fiscal impact of that second-phase agreement is about $2.3 million for participating members.

Why it matters: the STIG sits at a 49.9-MW interconnection level, a threshold below the California Energy Commission licensing trigger (50 MW). Forsyth and Wallace said that the interconnection capacity is valuable because new greenfield interconnections are difficult to obtain in California carbon and transmission markets.

Repower benefits discussed: an LM6000 would use a common vendor platform with extensive spare parts and service availability, deliver a better heat rate, be capable of blending hydrogen up to roughly 80 percent on day one, and could be online in time for summer 2027 under current schedules. Wallace said a high-level payback estimate for repowering is about nine years from capacity and energy revenues.

Next steps and council action: staff said they plan to put the second-phase agreement before the Roseville City Council in February 2025 for council consideration; if council approves, NCPA expects to execute the agreement with repowering members by March 2025. Forsyth and Wallace described opt-in/opt-out provisions and said partners' shares were already reallocated after Alameda’s decision.

Questions from commissioners focused on hydrogen blending capability, licensing thresholds, ownership shares, and how repower costs compare to the stranded-value alternative. Forsyth and Wallace emphasized that repowering preserves interconnection capacity for the region and that many municipal members are pursuing repower projects rather than greenfield builds.

Ending: staff asked the commission to note the proposed second-phase agreement and prepare to bring the item to council; final repower decisions will follow the surveys, engineering design and member votes.","NCPA declared the STIG steam-injected gas turbine at the Lodi Energy Center unsafe to operate in December 2024; Roseville staff told the PUC the choice is between decommissioning or repowering with an LM6000, and recommended a $2.3 million phase‑2 agreement to fund studies and a turbine deposit.",{"_33":88,"_35":36,"_37":38,"_39":89,"_41":90,"_43":91,"_45":92,"_47":93,"_49":94,"_51":95,"_53":96,"_55":56,"_57":58,"_59":97,"_61":62,"_63":64,"_65":98,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},6336706,"Roseville electric officials say damaged combustion turbine will be rebuilt and plan national lineworkers event",1290,506000,1796000,"/Search/View?dp=1&key=2282195-fdcc757db6e1931e33dfea89cbe1b44d&start=506&end=1796","https://assets.pipeline.soar.com/2282195-fdcc757db6e1931e33dfea89cbe1b44d/thumbnail_506000.jpg","/articles/6336706/Roseville/Placer-County/California/Roseville-electric-officials-say-damaged-combustion-turbine-will-be-rebuilt-and-plan-national-lineworkers-event","https://secure.pipeline.soar.com/6336706-dcf659469c7496e330c0a029bf446abf/orig.mp4?Expires=1770892044&Signature=iVBKsk4XTKyWE1K4GC~KktgE7I-yW0GxLCGgCa5lf~arKpRYly0-0SU6jjjDq7KbuAzfirfrdYspAGOej4tJhpLlkeLHNBgxbzZ1p~oXLTght2tCukEhEdWwKBW-u1R-kIcemRl5L0Mv1kW1-~Vfu5kQe1xhq9kEMdfjghhMJa9pXjUPR9urvvrzimmUyVM2dKih1QoWItJK~uTSxPdmIea9sg6vs8Y3h0KlSsAarYkpxGlArAnbmkDr5QSsBeKPhh26IoSvGnFcRstq~h8UHyIQeZd6EailA6MRBxs0P6jsuzQM2VS6uETilMTVIv8jS9NFIi0~Gpyt8~FSJmSJwQ__&Key-Pair-Id=KUT5TJCACFTXG","Roseville Electric Chief Operating Officer Sean Matchen told the City of Roseville Public Utilities Commission on Jan. 28 that one of two combustion turbines at the Roseville Energy Park suffered significant internal blade damage and will be rebuilt using replacement parts ordered from the original equipment manufacturer.

“It's a little over $5,000,000,” Matchen said of the current cost estimate for parts and repair, adding that Siemens technicians dismantled the unit in January and confirmed the damage was substantial but repairable. He said staff expect parts to arrive over the next month and Siemens will return in late March to reassemble the unit, with the plant back to full capacity in late April or early May.

The repair path follows an on-site inspection that narrowed the city’s options from a full module replacement to a parts-and-rebuild approach. Matchen said the city engaged its insurance broker, a root-cause analysis firm and the equipment manufacturer to document damage and pursue insurance recovery; the city is treating the work as an insurance claim. He emphasized the timeline is preliminary pending delivery of parts and completion of the root-cause report.

Why it matters: the Roseville Energy Park provides firm capacity to the city’s resource portfolio ahead of summer peaks. Matchen told commissioners that, with the unit offline, Roseville’s system has continued to meet community demand and that the timing of the outage is preferable to a summer failure. He said the department has acquired additional capacity through other resources and would procure more short-term capacity if needed.

Matchen described early investigative findings that point to the variable frequency drive (VFD) control logic used during start-up as the likely cause, but he said the city will wait for the formal root-cause analysis before assigning liability. “We believe … the logic or the programming that controlled when the VFD released the turbine may not have been working correctly,” he said.

In the same presentation Matchen outlined other department items: the electric department will host the American Public Power Association Lineworkers’ Rodeo at the county fairgrounds in late March, a free, public event designed to showcase lineworker skills and safety and to attract several thousand visitors; and the department is consolidating management and administrative staff into renovated space at 116 South Grant Street next week, while the 2090 facility will remain the operations and field crew hub.

What commissioners asked: they pressed for details on the turbine’s age (Matchen said the unit began operation in 2007 and the plant was built in 2005) and on insurance coverage; Matchen said the city is pursuing full recovery through its insurance program but was still early in that process. Commissioners also asked whether the department expects summer shortfalls if this or other older units become unavailable; staff said Roseville has options to secure replacement capacity and recently added approximately 50 MW via an acquisition from the Department of Water Resources.

Ending: Matchen said the department will return with updates as parts arrive and the Siemens reassembly proceeds, and that staff will share the root-cause report when available.","Roseville Electric Chief Operating Officer Sean Matchen told the Public Utilities Commission on Jan. 28 that staff will rebuild a combustion turbine damaged at the Roseville Energy Park and expect the plant back at full capacity in late April or early May after parts arrive.",{"_33":100,"_35":36,"_37":38,"_39":101,"_41":102,"_43":103,"_45":104,"_47":105,"_49":106,"_51":107,"_53":108,"_55":56,"_57":58,"_59":109,"_61":62,"_63":64,"_65":110,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},6336697,"Roseville environmental utilities to start construction on two ASR wells; security and resiliency upgrades underway",705,2989000,3694000,"/Search/View?dp=1&key=2282195-fdcc757db6e1931e33dfea89cbe1b44d&start=2989&end=3694","https://assets.pipeline.soar.com/2282195-fdcc757db6e1931e33dfea89cbe1b44d/thumbnail_2989000.jpg","/articles/6336697/Roseville/Placer-County/California/Roseville-environmental-utilities-to-start-construction-on-two-ASR-wells-security-and-resiliency-upgrades-underway","https://secure.pipeline.soar.com/6336697-218111169aa08cb2adaafe6dc12ac0c6/orig.mp4?Expires=1770892044&Signature=gTwEqZQNYEEIjC2VfQ9F4vSwkrUx7VbIs66l8WSdZpcaSIrf6qUWF8B42IRqk7iWO1w49Z-YDyj6auXz8qdAHmM8uwajGw997~7d-gvRw5T5HliSMzVB6RxTItG-2avGJ0nEoZcQydGLC3-Kf4OBLfqX8zi5jrX4ahndfQfd~1Yho8FPW7OMiabUXOCMIGfgXSpv7vnfwqgxdyGKISg~xZNSuDSChVi8VX3Rl3f94yS8xb5wUyhKmAQU2eHAnLRnOSIQb0O44klb6vtmEMQkJH7160Xs8~uB8EqnIursyzwWIf2Z99gAVU8njHOK4m3uy7N20ijptPCQDQaSOyCe8g__&Key-Pair-Id=KUT5TJCACFTXG","Environmental Utilities Director Sean Bigley told the Public Utilities Commission on Jan. 28 that Roseville will begin above-ground construction for two aquifer storage and recovery (ASR) wells in April 2025 and expects about an 18-month construction duration.

Bigley said the two next wells are sited at the Campus Oaks development area (near Blue Oaks) and a Pleasant Grove parcel near Misty Woods. He said downhole drilling and water-quality testing were completed in late 2023 and the above-ground facility designs were finished in 2024.

“Construction [of pumps, piping and above-ground facilities] will begin in April 2025,” Bigley said, noting the timeline targets lower-precipitation months. He said the capital plan envisions two additional ASR wells after the current pair and that staff are monitoring property opportunities for future sites.

On security and resiliency, Bigley described a package of measures funded in the last rate case: perimeter fencing at pump stations and ASR sites, upgraded alarm and surveillance systems, stricter facility access and visitor-identification protocols, and training exercises for water and wastewater staff. He said Roseville hosted Texas A&M Engineering Extension (TEEX) emergency operations training last year and is arranging vendor-led and in-house training for relevant utility staff.

Bigley also told commissioners the department will procure a replacement emergency generator for a dual-purpose pump station and portable backup generators for ASR wells to maintain system pressure in outages. He said staff are strengthening procedures to prevent facility “tailgating” and to increase staff awareness of both physical and cyber threats.

Community programs: Bigley reported the Utility Exploration Center’s “Succulents to Soup” food drive raised more than 6,000 pounds of food and distributed 500 succulent plants; the food went to Saint Vincent de Paul in Roseville.

Ending: Bigley said staff will update the commission as construction starts in April and as security and resiliency procurements proceed.","Environmental Utilities Director Sean Bigley told the Public Utilities Commission that two aquifer storage and recovery wells will begin construction in April 2025 with an 18-month build; the department also plans facility fencing, alarm and camera upgrades, staff training exercises, and backup generator procurements. The Utility",{"_33":112,"_35":36,"_37":38,"_39":113,"_41":114,"_43":115,"_45":116,"_47":117,"_49":118,"_51":119,"_53":120,"_55":56,"_57":58,"_59":121,"_61":62,"_63":64,"_65":122,"_67":68,"_69":70,"_71":68,"_72":73,"_74":73},6336688,"Commission approves Nov. 26, 2024 meeting minutes",18,461000,479000,"/Search/View?dp=1&key=2282195-fdcc757db6e1931e33dfea89cbe1b44d&start=461&end=479","https://assets.pipeline.soar.com/2282195-fdcc757db6e1931e33dfea89cbe1b44d/thumbnail_461000.jpg","/articles/6336688/Roseville/Placer-County/California/Commission-approves-Nov-26-2024-meeting-minutes","https://secure.pipeline.soar.com/6336688-e6d5bb5dfeda1c466f7d4b087631c55b/orig.mp4?Expires=1770892044&Signature=FXMgkMv18nwBQFtE7Z1jB0r6KU9q2-a-ui3Qr29g-0rte33YEdFkZZ5hQWcXLIKmc6ipx9ZUdmQ~oCYdC7mcdNoar2xcnCgf6pjO9tO7-c5H-66wHvhkB9AP438wr8CuJhjMOsKhwpJx9ikx0HCif-QU-M1fl4mVRd0njfZPP9ya4lK3sym~Rky7UzOO2oLttNKnVKfngCb5IamELhizChfwFk4cNC7X38dJR6uGv8faSErll~SIB3FZ8MQerum8wvIMVRf82-rOC4xEjy-JuDrgenqgactIox6DQ3d5HuficTfrqMEBpbw1iqwKaKf9OheEOtfIp227zCIgnanfsg__&Key-Pair-Id=KUT5TJCACFTXG","The City of Roseville Public Utilities Commission approved the Nov. 26, 2024 meeting minutes during its Jan. 28 session.

A commissioner moved to accept the minutes and a commissioner seconded; the chair called for all in favor and the minutes were approved by voice vote. The transcript records affirmative “Aye” responses but does not record an explicit roll-call tally or the names of the motion maker and seconder.

Ending: The approval was procedural and was recorded on the meeting record.","At the Jan. 28 City of Roseville Public Utilities Commission meeting, commissioners voted to approve the Nov. 26, 2024 minutes by voice vote. The approval was recorded as a verbal motion and second; the transcript does not include a roll-call tally.","actionData","errors"]

Article not found

Utility Exploration Center reopens, expands school programs and attracts tens of thousands of visitors

NCPA 'STIG' unit at Lodi faces decommissioning or repower; Roseville to consider $2.3 million study deposit

Roseville electric officials say damaged combustion turbine will be rebuilt and plan national lineworkers event

Roseville environmental utilities to start construction on two ASR wells; security and resiliency upgrades underway

Commission approves Nov. 26, 2024 meeting minutes