Technical Solution Manager (Energy Storage)

LONGi Energy Storage; Wes-Kaap; On-site; ZAR 600,000 - 900,000; Full time

Job summary

LONGi Energy Storage in Western Cape, South Africa, seeks an experienced professional to lead energy storage solution design across grid-side and generation-side projects. You will develop integrated systems (PCS/EMS/BMS) and support bids with technically sound proposals.

Responsibilities include lifecycle technical management, grid integration analysis, and market insight to guide product evolution. Strong teamwork and clear technical communication are essential.

Qualifications

• Bachelor’s degree or above in Power Systems, Electrical Engineering, High Voltage Engineering, or related fields.
• Minimum 3+ years of experience in the energy storage industry.
• Experience supporting utility-scale (100MWh+) energy storage projects is preferred.

Responsibilities

• Lead the design of energy storage solutions across grid-side, generation-side, and standalone/storage power stations.
• Develop integrated systems covering PCS, EMS, BMS, and substation interfaces.
• Analyze grid dispatch requirements and renewable grid integration challenges.
• Take the lead in tendering, prepare technical proposals and ensure compliance and competitiveness.
• Evaluate system integration solutions and perform electrical calculations and simulations.
• Support project execution from design through construction and delivery.
• Track regional energy storage policies and market dynamics to inform technical roadmaps.

Skills

Electrical design

Protection systems

Grid compliance testing

SCADA/communication protocols

Power system analysis

Cross-functional collaboration

Stakeholder management

Education

Bachelor’s degree or above in Power Systems or Electrical Engineering

Tools

PSCAD

ETAP

Job description

Key Responsibilities

• 1. Solution Design & Optimization
  • Lead the design of energy storage solutions across grid-side, generation-side (renewable + storage), and standalone/shared energy storage power stations
  • Develop integrated system solutions covering PCS, EMS, BMS, and substation systems
  • Analyze grid dispatch requirements and technical challenges in renewable grid integration
• 2. Tendering & Bidding Support
  • Take the lead in large-scale energy storage project tenders
  • Prepare technical proposals, including equipment selection, system topology design, and technical deviation analysis
  • Ensure compliance, competitiveness, and technical excellence of proposals
• 3. Customized Project Development
  • Evaluate system integration solutions for utility-scale storage projects
  • Conduct electrical calculations and simulation analysis for various applications (frequency regulation, peak shaving, black start, etc.)
  • Support sales teams in cost estimation and pricing strategy at project level
• 4. Full Lifecycle Technical Management
  • Support project execution from design through construction and delivery
  • Resolve technical issues related to electrical interfaces, communication protocols, and grid integration
  • Provide technical support during operation & maintenance phases
• 5. Policy & Market Insights
  • Track regional energy storage policies (capacity compensation, spot market rules, grid connection requirements, etc.)
  • Analyze market dynamics and regional characteristics
  • Contribute to white papers and technical roadmap reports for grid-side energy storage
• 6. Project Development Enablement
  • Develop technical documentation such as:
  • Utility-scale ESS development guidelines
  • Grid connection FAQs
  • Delivery & acceptance SOPs
  • Deliver technical training to sales and project teams to accelerate commercialization
• 7. Competitive Analysis
  • Benchmark leading competitors (e.g., Sungrow, HyperStrong)
  • Conduct SWOT analysis and provide strategic insights
  • Support product evolution in areas such as high-voltage cascade systems and liquid cooling technologies

Qualifications

• Bachelor’s degree or above in Power Systems, Electrical Engineering, High Voltage Engineering, or related fields
• Minimum 3+ years of experience in the energy storage industry
• Proven experience supporting utility-scale (100MWh+) energy storage projects is preferred

Technical Expertise

• Strong knowledge of primary and secondary electrical design for energy storage systems
• Familiarity with protection systems, grid compliance testing, and SCADA/communication protocols
• Experience with power system analysis; proficiency in simulation tools such as PSCAD or ETAP is a plus

Soft Skills

• Strong cross-functional collaboration and stakeholder management skills
• Ability to represent the company in technical reviews with grid operators, EPCs, and clients

Documentation Skills

• Excellent technical writing skills with the ability to produce structured, high-quality proposals and reports