Mauricio Teran

• Supporting PE inverter retrofit projects with a focus on system upgrades, troubleshooting, and performance optimization. • installation and commissioning of CATL Baterry Storage System. • Delivered daily progress and safety reports to site management and customers. • Hands-on experience in troubleshooting, cold/hot commissioning, module balancing, charging procedures, and system diagnostics. • Provided technical support to customers for installation, maintenance, and repair of energy storage systems. • Supported EV bus platforms, ensuring seamless integration and optimization of battery systems. • Experience with CATL, LG, Samsung, Tesla modules, Fluence Cubes, and Iner Ones Systems, leading DC cabling, integration, and commissioning activities. • Extensive field experience with mechanical solar systems: Nextracker, Ojo Nextracker, ATI, GameChange, and Array systems. • Skilled in installation, QA/QC inspections, and safety compliance. Project Manager / Site Manager – Big Rock, El Centro, CA • Led the installation of Samsung battery storage systems, overseeing communication lines, wire management, and system integration. • Managed union labor and IBEW electricians, conducting daily safety meetings and ensuring compliance with project and safety standards. • Coordinated logistics for battery transportation, waste disposal, and container management to maintain efficiency and environmental compliance. • Provided accurate daily reports and progress updates to senior site management and customers, ensuring transparency and alignment with project goals. • Worked on the Gateway Energy Storage Project (250 MW, San Diego, CA) – the largest battery energy storage project. • Hands-on experience in troubleshooting, cold/hot commissioning, module balancing, charging procedures, and system diagnostics.

Provide customers with technical support for the installation, commissioning, maintenance, and repair of batteries. Responsibilities • Install and commission battery energy storage systems and related products. • Install and configure controls-related firmware necessary to communicate with and control the battery system. • Support 'cold' commissioning (electrical checks using auxiliary power) and 'hot' commissioning of battery systems (energized electrical checks) and correct battery related performance issues including performing cell and module charging balancing. • Provide technical support for fault isolation and troubleshooting during all phases of commissioning. • Communicate directly with the customer on all aspects of project execution including accurate and timely daily reporting. • Participate in daily Job Hazard Analysis meetings to understand the plan of the day, related hazards and actions to mitigate risk. • Submit daily reports which accurately and complete reflect the work performed each day. • Submit expense reports and labor hours on schedule each week. • Manage all assigned Renewance assets including tools, computer, phone, etc. as applicable. • Execute and or support other tasks as assigned by the Director of Projects and Services. • Execute all work assignments with the highest standards of safety, quality, and care at all times. • Treat Renewance colleagues and customers with the highest level of respect at all times.

Implementation, planning, training, tracking and inspection of job site progress, audits, documentation, benchmarks and all other QA/QC components of the job. • Provide weekly QA/QC program updates to client’s management team • Lead, Manage and mentor the projects Quality team members • Hold project teams accountable for quality control program requirements • Experience with Sunscreen System App • Next Tracker experience QC •Array system experience in QC •First Solar module QC experience Sunscreen Application Remediation – Quality Control Assessment. Each item has been reviewed to determine whether it meets QC standards or requires further documentation

Perform maintenance and/ or installation work on assigned wind turbines under minimal supervision. Working 250+ feet above the ground, or working in small spaces to perform maintenance and repairs. Performing a variety of services and repairs on utility scale wind turbine drive train components, primarily gearboxes. (Tech 1, Loto 2, Troubleshooting, Service, Blade repair, Blade work, Rigging, Readability check. Deck repair)

Test electrical systems using tools that include voltmeters, oscilloscopes and ohmmeters to determine where issues may be occurring, the safety of the system and to ensure compatibility * Document actions, testing results, observations, final diagnosis of the situation and steps taken to resolve issues for each job or situation *Repair electrical issues by replacing or installing components, wiring or devices * Determine the steps necessary to assess an electrical situation using testing devices, blueprints and maps * Maintain a safe work environment by adhering to all company guidelines and OSHA safety requirements and also through reporting violations of policies, procedures and guidelines to immediate supervisor * Answer emergency calls quickly, assess the safety of the situation upon first arriving at the scene and provide directions to individuals affected by the electrical emergency to ensure their continued safety and comfort * Maintain equipment to ensure it is in good condition and can operate or be used safely; report any issues to immediate supervisor. • Perform system installation, maintenance, repair work, and carry out preventive maintenance service as required • Fabricate mechanical fixtures, undertake tool maintenance and perform cable management • Record work and keep data updated in an online database • Effectively communicate results to troubleshoot, correct, and prevent issues

During my 5 years in Solar I did different things in different departments in the solar industry in all over US. (CA, AZ, FL, MS, TX, NW) • (Logistics) Proper execution of inventory processes and inventory management, ordering and maintaining materials and supplies, inspection and upkeep of sites’ common areas and facilities (includes maintaining organization and inventory connex containers, and other storage areas) • (Mechanical Install/Labor)Assembles and installs solar panels on roofs and other structures. Configures PV systems based on site conditions and customers needs and expectations; connects panels to the power grid. Follows building standards and codes when installing panels and support structures. Inspects electrical installation and wiring. Tests operating voltages; calibrates to ensure systems are within acceptable power limits. Ensure that equipment is weather sealed. Performs routine maintenance on PV systems. Performs other related duties as assigned. (Pile Installation, Tracker Shakeout, Slew Gear Installation, Torque Tube Installation, Huck & BOM, Module Installation, Tracker QA/QC, Module QA/QC, SPC Controller.) • (Electrical) Install PV systems according to company and industry standards, Perform maintenance and repairs on PV systems as needed, Troubleshoot and diagnose issues with PV systems. (DC Trench, MV Trench, MV Cable Install, MV Conduit Install, Inverter DC Termination, Combiner Box Termination, DC Wire Install, Module Installation, Wire Management, LOTO)