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We are seeking an Assistant Project Manager to support the preconstruction management of Battery Energy Storage System (BESS) projects from early development through to construction readiness. Working closely with project managers, engineering teams, commercial specialists, suppliers, consultants and external stakeholders, you will help coordinate the activities required to deliver safe, technically viable and commercially robust projects.

Your responsibilities will include maintaining preconstruction programmes, action trackers, risk registers and project documentation; coordinating site investigations, surveys, design reviews, permitting and grid connection activities; and supporting the preparation of tender packages, scopes of work, cost plans and procurement schedules. You will assist with reviewing technical and commercial submissions, tracking budgets and forecast expenditure, preparing progress reports, and ensuring key deliverables, approvals and dependencies are clearly recorded and managed. The role will also involve arranging meetings, producing accurate minutes, following up actions and helping to resolve issues that could affect project cost, programme, quality or compliance.

Applicants should have experience in project coordination or project management within energy, infrastructure, construction, engineering or a related environment. Knowledge of renewable energy, electrical infrastructure or BESS projects is highly desirable, as is an understanding of preconstruction processes, contractor procurement, planning, permitting and health and safety requirements. You will need strong organisational and communication skills, excellent attention to detail and the ability to manage multiple priorities in a fast-moving environment. Confidence using project management, document control and Microsoft Office tools is expected. A proactive, collaborative approach and the ability to build effective relationships with both internal and external stakeholders are essential. This position offers the opportunity to contribute to the delivery of innovative energy storage projects while developing your project management expertise.

We are seeking an experienced Energy Storage Electrical Superintendent to oversee electrical construction activities across utility-scale battery energy storage projects in Arizona, New Mexico, and Texas. This role will provide field leadership from mobilisation through commissioning, ensuring work is completed safely, efficiently, on schedule, and in accordance with approved designs, specifications, contractual requirements, and applicable electrical codes. Travel between project sites will be required, with flexibility to work in remote locations and varied outdoor conditions.

Key responsibilities include coordinating electrical subcontractors, direct-hire crews, vendors, and commissioning teams; reviewing drawings, submittals, method statements, and installation plans; and managing the installation of medium- and low-voltage systems, battery containers, inverters, transformers, switchgear, cable systems, grounding, protection and control equipment, communications, and auxiliary systems. You will monitor daily progress, manpower, materials, productivity, quality, and schedule performance, while identifying constraints and implementing corrective actions. The Superintendent will also lead toolbox talks, enforce site safety procedures, support inspections and testing, maintain accurate field documentation, and coordinate energisation, punch-list completion, and turnover activities.

Applicants should have substantial experience supervising electrical construction on utility-scale energy, renewable power, substation, industrial, or battery storage projects. A strong understanding of electrical installation practices, one-line diagrams, construction sequencing, testing requirements, and commissioning processes is essential. Experience with medium-voltage systems, inverter-based resources, battery energy storage systems, and OSHA or equivalent safety standards is highly desirable. The successful candidate will be a confident field leader with strong communication, planning, problem-solving, and subcontractor management skills, capable of reading technical documents and using standard project reporting tools. A high school diploma or equivalent is required; electrical, engineering, construction, or project management qualifications are advantageous. Relevant safety training, electrical certifications, and a valid driving licence are preferred.

We are seeking an experienced Advisory (Senior) Associate to join a growing energy origination team based in Oxford. This is an opportunity to support the development and execution of innovative commercial strategies across power purchase agreements (PPAs), battery energy storage systems (BESS) and wider energy contracting solutions. You will work with renewable energy developers, investors, corporate customers, utilities, lenders and other market participants to structure and deliver transactions that support the transition to a more flexible, secure and low-carbon energy system.

Your responsibilities will include originating and assessing new opportunities; analysing power markets, price curves, revenues and regulatory developments; preparing financial and commercial models; supporting the negotiation of PPAs, tolling arrangements, flexibility agreements and related contracts; and producing clear investment papers, proposals and presentations for senior stakeholders. You will help manage transactions from initial opportunity assessment through structuring, due diligence, negotiation and execution, while coordinating input from legal, technical, financial and operational advisers. The role will also involve building client relationships, contributing to business development activity and identifying emerging opportunities in renewable generation, storage and energy-intensive markets.

Applicants should have experience in energy markets, infrastructure advisory, project finance, investment banking, commercial strategy or a closely related field, together with a strong understanding of PPAs, electricity markets and/or BESS economics. Experience of energy contracting, transaction execution, financial modelling and commercial negotiation is highly desirable. You will be confident working with complex data, able to communicate sophisticated analysis clearly and comfortable engaging with senior internal and external stakeholders. A commercially minded, analytical and collaborative approach is essential, as is the ability to manage multiple priorities in a fast-moving environment. The position is Oxford based, with flexibility for hybrid working and occasional travel. A relevant degree or equivalent professional experience is expected.

We are seeking a Solar & BESS Technician I to support the safe, reliable, and efficient operation of a utility-scale solar photovoltaic and battery energy storage facility. This entry-level role is suited to a practical, safety-focused individual who is interested in renewable energy, electrical systems, and industrial maintenance. Working under the direction of experienced technicians and site leadership, you will help maintain equipment performance and support daily plant operations.

Key responsibilities include conducting routine inspections and readings; identifying abnormal operating conditions; assisting with preventive and corrective maintenance; and supporting troubleshooting of solar arrays, inverters, battery systems, transformers, switchgear, monitoring equipment, and related balance-of-plant systems. You will use computerized maintenance and monitoring systems to record work activities, equipment conditions, and completed tasks. The role also involves maintaining tools, parts, work areas, and site access routes; following lockout/tagout and electrical safety procedures; participating in emergency response activities; and supporting contractors or specialist technicians when required. All work must be completed in accordance with site procedures, environmental requirements, and applicable health and safety standards.

Applicants should have a high school diploma or equivalent, a willingness to learn electrical and mechanical maintenance, and the ability to work outdoors in changing weather conditions. Experience with solar, battery storage, industrial equipment, electrical systems, or a related technical trade is advantageous but not essential. You should be comfortable using hand tools, reading basic technical documentation, working at heights where required, and performing physically demanding tasks such as standing, walking, lifting, and climbing. Strong communication, attention to detail, reliable attendance, and a commitment to safe working practices are essential. The position may require rotating shifts, weekends, holidays, on-call coverage, and successful completion of background, medical, and site-access requirements.

We are seeking an experienced Project Manager, BESS Preconstruction Management to lead the early-stage development of battery energy storage system (BESS) projects from initial concept through to construction readiness. This role will coordinate technical, commercial, permitting and procurement activities, ensuring projects are thoroughly assessed, competitively positioned and prepared for successful delivery. You will work closely with internal teams, external consultants, utilities, suppliers, landowners and delivery partners to establish clear project strategies, programmes, budgets and risk profiles.

Key responsibilities will include managing preconstruction workstreams, reviewing site feasibility and grid connection requirements, coordinating surveys and engineering studies, and overseeing the development of layouts, specifications, cost estimates and technical documentation. You will support permitting and planning activities, contribute to equipment selection and supplier evaluations, and help develop tender packages, procurement strategies and contract scopes. The role will also involve maintaining project schedules, tracking budgets, identifying and mitigating risks, managing design reviews, and presenting recommendations to senior stakeholders. You will ensure that all preconstruction deliverables are accurate, commercially viable and aligned with applicable safety, environmental and regulatory requirements.

The successful candidate will have significant experience managing the preconstruction or development of energy, infrastructure, renewables or large-scale electrical projects, with direct knowledge of BESS, power systems or related technologies highly desirable. You should be confident interpreting technical and commercial information, coordinating multidisciplinary teams and progressing projects through ambiguity and competing priorities. Strong project management, stakeholder engagement, negotiation and communication skills are essential, together with a structured and commercially focused approach to decision-making. Experience with grid connections, planning processes, engineering design, construction contracting and cost estimating will be advantageous. A relevant degree or professional qualification in engineering, construction, project management, energy or a related discipline is preferred.

We are seeking an experienced BESS Electrical Estimator to support the development of accurate, competitive estimates for battery energy storage system projects. Working across the tendering and pre-construction stages, you will interpret electrical drawings, specifications, scope documents and project schedules to identify the materials, labour, equipment and specialist services required for each opportunity. You will prepare detailed cost plans, bills of quantities, pricing schedules and commercial submissions for utility-scale, commercial and industrial BESS installations.

Your responsibilities will include reviewing tender documentation, identifying design gaps and technical risks, obtaining and evaluating supplier and subcontractor quotations, and maintaining clear records of assumptions, exclusions and inclusions. You will collaborate closely with electrical engineering, procurement, project delivery and commercial teams to validate designs and develop value-engineering options. The role will also involve assessing MV and LV equipment, transformers, switchgear, inverters, protection systems, cabling, control systems, civil interfaces and balance-of-plant requirements. You will contribute to tender clarifications, support negotiations and help ensure estimates reflect current market conditions, regulatory requirements and project-specific installation constraints.

The successful candidate will have proven experience estimating electrical works, ideally within battery energy storage, renewable energy, power generation, utilities or a related infrastructure environment. A strong understanding of electrical distribution systems, single-line diagrams, construction methodologies and applicable industry standards is essential. Experience using estimating, take-off, spreadsheet or enterprise resource planning software will be highly valued, together with the ability to analyse technical information and produce accurate results under time pressure. You should be commercially aware, detail-oriented and confident communicating with suppliers, clients and internal stakeholders. A relevant electrical engineering, quantity surveying or construction-related qualification is desirable, while practical project experience and a commitment to quality, safety and continuous improvement are essential.

We are seeking a Commissioning Project Manager, BESS, to lead the successful commissioning and handover of battery energy storage system projects from construction completion through to commercial operation. You will take ownership of commissioning strategy, planning, coordination and execution, ensuring that all activities are delivered safely, on schedule, within budget and to the required technical and contractual standards. The role will involve working across multidisciplinary teams, including engineering, construction, controls, grid connection, operations, suppliers, subcontractors and client representatives.

Your responsibilities will include developing and maintaining commissioning plans, schedules, procedures, test documentation and readiness trackers. You will coordinate inspection, testing and energisation activities for battery systems, power conversion equipment, medium- and high-voltage infrastructure, protection systems, transformers, SCADA, energy management systems and auxiliary equipment. You will manage commissioning risks, resolve technical and interface issues, monitor progress, lead regular meetings and provide clear reporting to project stakeholders. You will also oversee punch-list closure, performance testing, reliability runs, grid compliance activities, documentation review, training and final handover to the operations team.

The successful candidate will have proven experience managing commissioning activities on utility-scale energy, renewable power, electrical infrastructure or battery storage projects. A strong understanding of electrical systems, control systems, protection and testing requirements is essential, together with experience working under high-voltage safety rules and permit-to-work procedures. You should be confident leading contractors and technical teams, managing competing priorities and making informed decisions in a fast-moving project environment. Strong communication, organisational and problem-solving skills are required, along with the ability to interpret technical documentation and contractual requirements. A degree, diploma or equivalent qualification in electrical engineering, power systems or a related discipline is preferred. Relevant commissioning, project management or electrical safety certifications will be advantageous, as will experience with grid-connected BESS projects, SCADA/EMS integration and regulatory compliance. Travel to project sites may be required.

We are seeking an experienced Site Quality Manager to oversee quality assurance and quality control activities across utility-scale photovoltaic (PV) and battery energy storage system (BESS) projects. Based on site, you will ensure that construction, installation, commissioning, and handover activities meet approved designs, contractual requirements, applicable standards, and project specifications. You will work closely with engineering, construction, commissioning, suppliers, subcontractors, and client representatives to promote a strong quality culture and ensure issues are identified and resolved efficiently.

Your responsibilities will include developing and implementing project-specific quality plans, inspection and test plans, checklists, and quality procedures. You will coordinate and witness inspections, review material certificates and technical documentation, monitor workmanship, and verify compliance with approved drawings and method statements. The role will involve managing non-conformances, observations, corrective and preventive actions, punch lists, and quality-related risks through to effective closeout. You will also maintain accurate quality records, prepare reports and dashboards, support audits, and contribute to lessons learned and continuous improvement initiatives. Regular site walks and coordination meetings will be required, together with active monitoring of civil, structural, electrical, mechanical, cabling, battery, inverter, and balance-of-plant works.

The successful candidate will have proven experience in a site-based quality management role within renewable energy, power generation, electrical infrastructure, or a similar industrial environment, with specific exposure to PV and/or BESS projects. A relevant technical qualification in engineering, construction, quality management, or a related discipline is preferred. You should be familiar with international quality standards, inspection practices, document control, and root-cause analysis, and be confident interpreting drawings, specifications, and test documentation. Strong communication, organisation, reporting, and problem-solving skills are essential, along with the ability to influence contractors and work effectively in a multicultural project team. Relevant quality certification, such as ISO 9001 Lead Auditor or equivalent, and experience with commissioning and project handover documentation would be advantageous. The role may require regular travel or rotation depending on project location.

We are seeking an experienced BESS Commissioning Manager to lead the safe, efficient and successful commissioning of battery energy storage system projects from construction completion through to commercial operation. This role will coordinate commissioning activities across electrical, mechanical, control, protection and software systems, ensuring that all equipment and interfaces perform in accordance with approved designs, contractual requirements and applicable standards. You will work closely with engineering, construction, controls, grid connection, equipment suppliers and client representatives to establish clear commissioning plans, programmes and readiness criteria.

Key responsibilities will include developing and maintaining commissioning strategies, inspection and test plans, method statements, schedules and reporting processes. You will manage energisation, functional testing, performance testing, troubleshooting and defect resolution for battery systems, power conversion systems, transformers, switchgear, protection and control systems, energy management systems and site communications. The role will also involve coordinating subcontractors and original equipment manufacturers, leading daily commissioning meetings, reviewing test records, monitoring progress against milestones and ensuring that all activities are completed safely and accurately. You will support grid compliance testing, operational handover, operator training and the preparation of final commissioning dossiers and as-built documentation.

Applicants should have significant commissioning experience within utility-scale energy storage, renewable energy, high-voltage electrical infrastructure or a closely related environment. A strong understanding of BESS architecture, AC and DC systems, SCADA, protection schemes, power quality, functional safety and grid connection requirements is essential. Experience managing multidisciplinary teams and external contractors on complex projects is highly desirable, along with the ability to interpret electrical drawings, control philosophies, technical specifications and test procedures. Relevant electrical qualifications and high-voltage authorisation would be advantageous. You must be confident working on active project sites, capable of making sound decisions under pressure and committed to maintaining the highest standards of health, safety, quality and environmental performance. Regular travel to project locations may be required.

We are seeking a highly skilled and motivated Sr. Manager, Energy Storage Supply Chain and Technology to lead our efforts in optimizing and innovating within the energy storage sector. In this role, you will be responsible for managing the end-to-end supply chain processes, including procurement, logistics, and inventory management, while ensuring alignment with technology advancements. You will collaborate closely with cross-functional teams to develop and implement strategies that enhance operational efficiency and reduce costs. Your expertise will guide the selection and integration of advanced technologies within the supply chain to support our energy storage initiatives.

The ideal candidate will have a proven track record in supply chain management specifically within the energy or technology sectors. You will be tasked with analyzing market trends and supply chain performance metrics to identify opportunities for improvement. Additionally, you will lead a team of professionals, fostering a culture of continuous improvement and innovation. Strong communication skills are essential as you will be liaising with suppliers, stakeholders, and internal teams to ensure the seamless execution of projects. A background in renewable energy technologies and a solid understanding of regulatory requirements will be critical in driving the success of our energy storage solutions.