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Energy Storage Engineering Intern

📍 Location
madrid
⏰ Job Type
Full-time
📅 Posted
June 27, 2026

About the Role

LONGi Solar is one of the world's largest solar technology companies, ranking first in global module shipments since 2020. With more than 40,000 employees, 30+ locations and 30 manufacturing sites globally, LONGi has broken the photovoltaic (PV) cell conversion efficiency record 16 times in a row since 2021. LONGi is the first Chinese solar manufacturer to join the three distinguished climate initiatives RE100, EP100 and EV100.

Assist in the dimensioning and sizing of BESS solutions for commercial solar projects
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Support the development of technical proposals and system configurations (PV + Storage)
Perform energy yield analysis and storage optimization studies
Collaborate with cross-functional teams (sales, engineering, product) to ensure feasibility of solutions
Analyze project requirements (grid conditions, load profiles, regulatory const...

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