Specifications include, but are not limited to: The successful firm shall provide design and/or management services, and additional services as required. The firms shall have demonstrated expertise in providing third-party owner’s representative engineering consulting services on behalf of public agencies in the pursuit of ESPCs. The Contractor shall provide Third-Party Consulting (TPC) services in support of Energy Savings Performance Contracts (ESPCs). Support will begin with planning for ESPCs and continue through the procurement of ESCOs, oversight of the Investment Grade Audit (IGA), implementation & design oversight, and may continue through the annual Measurement and Verification (M&V) Reports. Each firm shall have on staff experienced individuals working in the Energy Savings Performance Contracting (ESPC) industry with the various licenses & certifications described herein. Services may include evaluation of operational performance of various buildings and building systems including lighting, electrical and mechanical systems. Collection and analysis of operational and performance data, peer review of reports, plans, recommendations, proposals, submittals including but not limited to ASHRAE Level 1, 2 & 3 Energy Audits, Measurement and Verification Plans/Reports, equipment submittals, plans & specifications of energy systems, commissioning plans and reports, etc. All design work shall be performed under and be approved by an architect or engineer licensed in the State of California. Contractor will provide professional third-party consulting for Energy Savings Performance Contracts (ESPCs) on an "as-needed" basis. Contractor shall be experienced in: Performance evaluation of new and existing facility mechanical, electrical, plumbing and control systems. Building technologies, systems and operations. Energy, energy efficiency, and energy renewable technologies. Water and sewer efficiency technologies. Renewable Energy, Battery Energy Storage Systems (BESS), and Resilience Federal and California State regulations as applied to energy systems. Engineering economics and financial analysis of systems. Performance data collection and engineering analysis. Providing technical, financial, and contractual support for the review of ESPC Preliminary Assessments for project credibility. Provide technical, and contractual support for the development of Requests for Proposals for Energy Services Companies and Evaluation of RFQ and RFP responses. Provide technical, and contractual support for the negotiation of Investment Grade Audit Agreements (IGAAs) between the State and the ESCO. Provide technical support before, during, and after the Investment Grade Audit (IGA) Kickoff meeting. Providing technical support during the development and implementation of projects, Providing technical support during the post-award and construction period phases, including design and submittal review, inspection of ECM installation, post-installation, witnessing of commissioning, and project acceptance activities. The Third-Party Consultant may conduct site visits, if directed by DGS, to provide consultative support under this task. Provide technical support during the measurement & verification process (PostInstallation Performance Period) to review M&V findings for accuracy and compliance with contractual ESPC documentation.