ESS Key Account Manager - Spain

Spain - Madrid, Spain - Pamplona

Full-time

Permanent employee

Your mission

¡Hola y bienvenido/a a Sungrow! Join our growing Energy Storage Systems team and help shape the utility-scale energy transition across Spain and Portugal. As our ESS Key Account Manager, you will turn high-potential BESS opportunities into successful, profitable projects.

Own the commercial strategy, sales pipeline, targets, and customer development for utility-scale ESS across Spain and Portugal.
Build trusted senior-level relationships with EPCs, system integrators, IPPs, developers, investors, utilities, technical advisers, and strategic partners.
Lead complex sales cycles from opportunity qualification and technical-commercial positioning through negotiation, contract award, and project handover.
Partner with engineering, product management, service, legal, finance, and global teams to deliver competitive, bankable customer proposals.
Translate customer feedback, tender activity, market requirements, and competitor insights into practical portfolio and pricing recommendations.
Maintain accurate forecasts, account plans, market reports, and CRM data while representing Sungrow at customer workshops, industry events, and commercial negotiations.

Your profile

Sounds exciting? To thrive in this role, you will combine commercial drive with strong technical understanding and a collaborative, customer-first mindset.

Hold a bachelor’s or master’s degree in electrical engineering, energy engineering, business, or a comparable field with strong technical exposure.
Bring at least five years of experience selling utility-scale BESS, renewable-energy solutions, power systems, EPC services, or project-development solutions.
Have a proven track record of winning and managing complex, high-value B2B opportunities in Spain and/or Portugal.
Understand utility-scale ESS applications, battery systems, grid integration, EPC delivery models, and energy-market business cases.
Confidently assess deal economics, manage commercial risk, negotiate contracts, and balance revenue growth with sustainable margins.
Communicate in Spanish at C1 level and English at B2 level or above; Portuguese at B2 level or above is strongly preferred, and you are comfortable travelling regularly across Spain, Portugal, and occasionally internationally.

Why us?

Join Sungrow’s ESS business at a pivotal moment for the Iberian energy market. You will work with a highly international, expert team that combines commercial ambition with deep technical knowledge of solar, storage, and grid solutions. This is an opportunity to influence how utility-scale battery storage is positioned, sold, and delivered across Spain and Portugal, while building long-term partnerships that accelerate a more resilient energy system.

Über uns

We are a green tech company unlike any other green tech company. We are a team of lateral thinkers, young professionals, and creative minds. We are fighting every day to make our mission happen – Clean Power For All!

With nearly 250 GW of clean power presently installed worldwide,

Welcome at Sungrow

Sungrow is the global leading inverter solution supplier for renewables. We are proud to look back to a success story that already began in 1997, but we never stopped striving for more. We want to give fresh impulses, inspire, and contribute to a sustainable development of our planet, that’s why we constantly improve our portfolio.
From floating solar plants to large-scale utility projects and to small residential products we always offer the best and most suitable solution. At Sungrow we hold more than 1500 patents – no wonder as we employ the biggest research and development team of the whole industry. 40 % of all Sungrow workforce is continuously investigating on how to further improve the existing portfolio.