Riverside Public Utilities completed an initial AMI project in 2021 and had 38,445 AMI meters installed before its board later approved a multi-year expansion covering 80,000 additional meters. The current record is strongest as a post-adoption expansion case: it documents the installed operating base, business-case evidence and governing-body authorization, but does not reconstruct the complete 2019 vendor-selection process.
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Utility: Riverside Public Utilities
Utility type: Municipal utility
Technology / purchase: Advanced Metering Infrastructure (AMI) phased expansion
Buying motion: Incumbent / platform expansion
Stages visible in the record: Purchase Decision → Adoption & Implementation → Expansion & Advocacy
Stakeholders explicitly visible: RPU staff; Board of Public Utilities
Evidence / information explicitly mentioned: Initial AMI deployment operating record; AMI business case; board work order and meter-purchase authorization; named RPU manager comments in a vendor-hosted Tantalus announcement
Outcome: Board approval of a multi-year work order and purchase of 80,000 additional electric meters; full installation of the 80,000 meters is not documented as complete
Source basis: Primary City of Riverside staff memorandum and Board minutes, supplemented by a vendor-hosted Tantalus announcement containing a named RPU manager quotation
What triggered the purchase
The available record does not identify a new system failure or other single discrete event that triggered the later expansion. Instead, it begins with an installed AMI path already in operation. The initial project had been completed in 2021, and 38,445 AMI meters were installed before the later expansion decision. The source describes that earlier work as an initial project or deployment, not as a pilot.
By December 2024, RPU staff were bringing a much larger phased AMI commitment to the Board of Public Utilities. The staff memorandum establishes operating experience followed by a recommended expansion, while the Dec. 9 Board minutes record the completed approval. Neither record states that the earlier project's success caused the expansion.
How the utility defined what it needed
The City staff memorandum defines the proposed commitment as a multi-year expansion involving 80,000 additional electric meters across fiscal years 2024-25 through 2028-29. The same memorandum presents the AMI business case based on anticipated operational savings, revenue enhancement, efficiency improvements, recovery of losses and a seven-year payback period. Those benefits are prospective in the memorandum rather than documented realized outcomes.
A later Tantalus announcement provides retrospective context for the installed path. It says RPU began working with Tantalus in 2019 and initially used ERT-overlay capabilities to extend existing infrastructure before the later move toward broader meter replacement. Because that account is vendor-hosted, it is useful as relationship and chronology context rather than as an independent record of the original buying process.
How vendors or options were evaluated
The current source set does not document a fresh competitive vendor evaluation for the 2024 expansion, nor does it establish how Tantalus or other participants were comparatively evaluated in the original 2019 decision.
Instead, the City staff memorandum documents the recommended terms, and the Dec. 9, 2024 Board minutes document the completed action. The Board of Public Utilities approved Work Order 2508277 for $25.25 million and separately approved the purchase of 80,000 additional electric meters with McAvoy and Markham for a not-to-exceed amount of $15.35 million. The $25.25 million figure is the total work order, not the price of the meters alone.
The source set also distinguishes supplier, product and technology-partner roles. The City staff memorandum identifies McAvoy and Markham as the meter-purchase counterparty and describes Itron meters with Tantalus AMI technology. The later Tantalus announcement describes Tantalus as RPU's technology partner. These entities should not be treated as a single vendor identity.
Evidence and information explicitly mentioned
Initial AMI deployment operating record
The City staff memorandum states that the initial project was completed in 2021 and that 38,445 AMI meters had been installed before the expansion decision. This provides documented post-implementation operating scale before RPU authorized the larger multi-year program.
AMI business case
The City staff memorandum presents anticipated operational savings, revenue enhancement, efficiency improvements, recovery of losses and a seven-year payback period. The record therefore shows economic and operational projections being presented with the expansion request, but it does not establish that those benefits had already been realized.
Board work order and meter-purchase authorization
The Dec. 9, 2024 Board minutes record approval of the $25.25 million work order and the separate purchase of 80,000 additional meters with McAvoy and Markham for up to $15.35 million; the motion carried. The rollout was structured across multiple fiscal years rather than documented as an already completed 80,000-meter deployment.
Public RPU comments in a vendor-hosted announcement
Tantalus's June 2025 announcement includes comments from a named RPU manager discussing the flexibility and collaboration of the relationship. Those comments provide evidence of public advocacy associated with the installed technology relationship, but the host is the vendor. They should not be treated as an independent utility publication or as evidence that advocacy and expansion came from the same source.
Outcome
The Dec. 9, 2024 Board of Public Utilities minutes record approval of a major multi-year AMI expansion. The authorization included Work Order 2508277 for $25.25 million and a separate meter purchase with McAvoy and Markham for 80,000 additional electric meters, not to exceed $15.35 million, across fiscal years 2024-25 through 2028-29.
The documented outcome is authorization and phased expansion, not completed deployment of all 80,000 meters. The record also shows that the expansion followed an earlier completed AMI project and an installed base of 38,445 meters, without establishing from the City staff memorandum or Board minutes that prior operating success caused the later approval.
Why this case matters for vendors
A completed initial deployment preceded a much larger phased commitment
RPU had completed its initial project and installed 38,445 AMI meters before the board approved the later 80,000-meter expansion. This case therefore documents a buying process that continued well beyond the initial implementation: an installed technology path became the context for a new, substantially larger purchase decision. The evidence supports that sequence without requiring a claim that the earlier deployment alone caused the expansion.
Expansion still included business-case evidence and governing-body authorization
The later program was not documented simply as routine continuation of the original deployment. RPU staff presented anticipated savings, revenue and efficiency benefits and a seven-year payback in the staff memorandum, while the Dec. 9 Board minutes record approval of the multi-year work order and meter purchase. In this case, expansion of an installed path still appeared as a distinct economic and authorization decision.
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City of Riverside staff memorandum / Board agenda report
Host: City of Riverside
Public link: https://riversideca.legistar.com/View.ashx?GUID=5683E4DF-C051-4923-AAE0-D971758D1FD9&ID=13577435&M=FSource provenance: Primary City staff memorandum / Board agenda report supporting the Dec. 9, 2024 agenda item. It recommends approval and documents completion of the initial project, the installed meter count, the AMI business case and the proposed work-order and meter-purchase terms. It does not itself establish that the motion passed.
Board of Public Utilities Minutes — December 9, 2024
Host: City of Riverside
Public link: https://riversideca.legistar.com/View.ashx?GUID=0BE51A53-E942-4CD7-82D5-1198DAB68CF3&ID=13630908&M=FSource provenance: Primary Board of Public Utilities minutes / completed action record. The minutes record approval of Work Order 2508277 for $25.25 million, approval of 80,000 additional electric meters with McAvoy and Markham for a not-to-exceed amount of $15.35 million, and that the motion carried.
Riverside Public Utilities Expands Grid Modernization Investment With Tantalus
Host: Tantalus Systems
Public link: https://tantalus.com/2025/06/12/riverside-public-utilities-expands-grid-modernization-investment-with-tantalus/Source provenance: Vendor-hosted announcement containing retrospective program context and a named RPU manager quotation. It supports relationship and advocacy context but is not an independent utility record.
Evidence limitations: The available sources do not reconstruct the complete 2019 procurement or comparative vendor evaluation. They do not support describing the initial deployment as a pilot. The City staff memorandum establishes the sequence from completed initial deployment to the expansion recommendation, while the Board minutes establish the completed approval; neither states that prior operating success caused the expansion. The approved 80,000-meter program was phased across multiple fiscal years and is not documented as fully installed. Anticipated savings, revenue improvements and payback are prospective business-case benefits rather than realized results. Advocacy is visible separately through a named RPU manager quotation in the vendor-hosted Tantalus announcement.
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