Senior Key Account Manager (BESS) in Doncaster

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. Building on its leadership in photovoltaics, LONGi has recently expanded into the energy storage sector.

Your mission as Senior Key Account Manager – BESS, you will lead the development and expansion of LONGi’s battery energy storage business across The UK & Ireland Region. You will own strategic utility-scale customer relationships, drive BESS project sales from early-stage opportunity through execution, and position LONGi as a trusted partner for large-scale energy storage solutions. Your role is pivotal in building LONGi’s footprint in the fast-growing storage market and enabling energy transition through commercially successful projects.

JOB DESCRIPTION

• Business Development & Sales Leadership
  • Develop and execute the sales strategy for utility-scale battery storage systems (BESS) in The UK & Ireland.
  • Identify, qualify and secure new BESS customers including utilities, independent power producers (IPPs), developers, EPCs, and energy investors.
  • Build and expand LONGi’s network of strategic partners and key accounts within the energy storage ecosystem.
  • Drive project pipeline development from lead generation through contract closure.
  • Own commercial negotiations including pricing, contract terms, and framework agreements for battery storage projects.
• Key Account Management
  • Act as the primary interface between LONGi and its strategic BESS customers.
  • Develop long-term account strategies to grow share of wallet and customer lifetime value.
  • Manage customer relationships from pre-sales, technical clarification, contracting, and order execution to after-sales support.
  • Identify cross-selling and up-selling opportunities linking battery storage with PV and integrated energy solutions where relevant.
• Commercial & Strategy Execution
  • Implement monthly, quarterly and annual sales targets for battery storage solutions.
  • Monitor market trends, competitors and policy developments in The UK & Ireland energy storage markets.
  • Represent LONGi at industry events, energy conferences, and customer meetings to enhance brand presence in the storage segment.
  • Contribute to regional market-entry strategies, go-to-market planning and channel development for energy storage.
• Internal Coordination
  • Work closely with internal stakeholders including product management, engineering, legal, finance, logistics and service teams to support successful project delivery.
  • Coordinate technical proposals and commercial alignment with solution architects and engineering teams.
  • Ensure contract execution, payment discipline, and customer satisfaction.
  • Support internal feedback loops, sharing market intelligence to inform product development and pricing strategy.

MAIN REQUIREMENTS:

• Minimum 3+ years’ experience in key account management, business development, or sales within energy storage (especially BESS) specific to utility segment.
• Deep understanding of utility-scale energy storage use cases (e.g. grid stability, peak shaving, frequency regulation, arbitrage).
• Demonstrated success selling battery storage systems, hybrid projects or energy infrastructure solutions is a strong advantage.
• Experience working with utilities, IPPs, EPCs or energy developers is highly desirable.
• Proven track record managing complex commercial negotiations and closing large contracts.
• Ability to build and execute account development strategies.
• Excellent stakeholder management and relationship-building skills.
• Strong business acumen and value-selling approach.
• Fluency in English (written and spoken).
• Willingness to travel within the region.

WE OFFER

• A challenging position in a market leading photovoltaic company.
• The chance to work in a global team with international vision.
• A promising career development within our fast-growing organization.
• Colleagues with expertise willing to support, hard-work and drive the company with you.
• A competitive salary with a success-based variable, additional benefits, and other attractive perks.
• Opportunity to develop your knowledge, experience and grow in the PV sector with the leading technology company.