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Performance Engineer – Solar

Location: Madrid, Spain

Department: Tech Ops - Performance



MN8 Energy is one of the largest independent solar energy and energy storage owner-operators in the U.S., serving enterprise customers with clean energy and complementary solutions, such as battery storage and EV Charging, to enable an electrified, decarbonized world. Originally founded inside of Goldman Sachs in 2017, our fleet has grown to nearly 3-gigawatts of solar, including 850 projects across 27 states, and over 270 megawatts of battery storage projects, with each project tailored to achieve the bold decarbonization targets and goals of our more than 200 blue-chip customers. MN8 is headquartered in New York with offices in Boca Raton, Florida and Madrid.



Day to Day Tasks & Responsibilities:

  • Conduct weekly performance analysis of operational projects using technical understanding of PV and BESS operations to identify underperformance and undetected downtime
  • Lead on-boarding of Performance Monitoring software systems, including standardizing metrics and configuring automated alerts and alarms
  • Perform detailed technical analysis of results to identify probable causes of performance issues
  • Collaborate with Field Services, Operations and Engineering teams to identify system, site or portfolio underperformance and recommend improvements
  • Conduct energy estimates/technical modeling for solar and energy storage using industry leading software and company proprietary software
  • Research the latest tools, programs and papers for the continuous improvement of the company’s energy modelling capabilities including new technologies driving decarbonization such as EV Stations or Green Hydrogen
  • Review equipment test reports for application of results on energy estimates
  • Leverage operating data to formulate updated energy modeling assumptions
  • Coordinate and manage the 3rd party resources (Owner’s Engineers) in the preparation of energy estimates; perform QA/QC of results and ensure deadlines are met
  • Work with team members to build automated analysis based on performance analysis findings
  • Lead the negotiation with third party financing parties and technical advisors of energy modeling parameters and results
  • Work with meteorological databases and ground measured meteo data, and the providers of such data
  • Perform or review capacity and performance ratio tests for projects in operation
  • Specify plant acceptance tests, validate the results of these tests
  • Specify the annual scheduled plant tests, validate the results of these tests
  • Review production estimates and meteorological data sources for accuracy by comparing to operational data
  • Develop KPIs to ensure the operating portfolio is performing optimally
  • Develop technical aspects of monthly, quarterly and annual reports
  • Configure and validates performance alerts in Monitoring Portals




  • 3+ yrs experience in energy modeling and performance analysis of solar projects with commercial monitoring and analysis tools
  • Bachelor’s degree in Engineering, Physics or Mathematics
  • Exceptional analytical skills
  • Experienced in managing operational BESS and Solar PV Systems
  • Able to read, analyze and interpret technical drawings, designs and procedures
  • Experience with PVSYST, SAM, PV SOL, Plant Predict, HelioScope, HOMER Grid or other PV modeling software
  • Experience with Python, VBA, Matlab and R are highly desirable
  • Proficient with Microsoft Suite and Smartsheet
  • Proficient with Microsoft Excel VBA and Excel formulas
  • Strong analytical and technical as well as problem-solving skills
  • Demonstrated ability to perform under high pressure and dynamic work environment managing multiple project deliverables
  • Strong verbal and written communication skills as well as task prioritization
  • Be able to conduct business and perform technical writing in English



MN8 Energy is an Equal Opportunity Employer and fully subscribes to the principles of Equal Employment Opportunity to ensure that all applicants and employees are considered for hire, promotion, and job status without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, marital or familial status.

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