Solar + BESS Solutions for Developers, EPCCs & Renewable Energy Platforms
Helping solar developers unlock higher project value with reliable Battery Energy Storage System integration — from technical design and product selection to commissioning support and long-term O&M.
Solar projects are becoming more competitive — and more complex
Across Malaysia and Southeast Asia, solar developers face growing pressure on margins, pricing and technical requirements. Traditional solar-only projects may no longer be enough to meet the next generation of energy demand.
For large-scale solar farms, CRESS projects, industrial offtake and grid-connected renewable platforms, Battery Energy Storage Systems are becoming a critical part of the project structure.
What solar developers are up against
Developers increasingly have to design around:
- Lower EPCC margins
- More competitive tender pricing
- Grid connection limitations
- Curtailment risk
- Higher technical requirements from financiers
- Demand for firm and dispatchable renewable energy
- Complex CRESS, LSS, SELCO and private PPA structures
- The need to support data centres and high-load customers
Add BESS without building everything in-house
Solunar works as a specialist BESS system integrator and technology partner for solar developers and EPCC companies. We are not here to compete with developers — we are here to support them.
Our role is to help your project team integrate the right battery system, PCS, EMS, transformer, protection system, communication architecture and O&M strategy into your solar project — whether utility-scale, CRESS, industrial PPA or hybrid.
From solar generation to energy infrastructure
Solar produces energy; BESS gives developers control over when that energy is used and monetised — creating value through:
- Energy shifting
- Peak shaving
- Grid support
- Power smoothing
- Backup power support
- Renewable energy firming
- Higher reliability for industrial offtakers
- Improved project resilience and flexibility
Who we serve
Solunar supports a broad set of project stakeholders:
- Solar developers
- Large-scale solar project owners
- CRESS project developers
- Commercial and industrial solar EPCCs
- Renewable energy platforms
- Infrastructure funds
- Solar asset owners
- Industrial park developers
- Data-centre energy solution providers
- Utilities and grid-connected project owners
Our scope of support
Complete BESS integration support across the project lifecycle:
- 01
Technical feasibility & concept design
BESS sizing, use case, duration, PCS capacity, layout, single-line review and grid considerations.
- 02
Product selection & system architecture
Battery, PCS, EMS, BMS, transformer/MV, protection, fire safety, SCADA and monitoring — AC- or DC-coupled.
- 03
Commercial & financial structuring
CAPEX structure, ROI, PPA enhancement, bankability, degradation and lifecycle assumptions.
- 04
Safety, compliance & reliability review
Chemistry review, thermal-runaway mitigation, fire suppression, protection coordination and emergency response.
- 05
Commissioning & O&M support
Testing, commissioning, remote monitoring, battery-health tracking, warranty coordination and optimisation.
Why developers work with Solunar
A specialist partner that strengthens — never replaces — your team:
Specialist integration
We focus on BESS design, integration and operation, not just product supply.
Support, not competition
We work behind developers and EPCCs as a technology and integration partner.
Multi-brand flexibility
We integrate different battery, PCS and EMS solutions to fit the project.
BYD & GoodWe ecosystem
Access to leading BESS, inverter and PCS technologies.
Bankability-focused
We help present projects that investors, lenders and offtakers can underwrite.
Safety-first design
Fire safety, reliability, monitoring and long-term operational stability come first.
Solar + BESS use cases
Solunar supports BESS integration for:
- Large Scale Solar projects
- CRESS projects
- Commercial and industrial solar PPAs
- Industrial parks
- Data centres
- Utility-scale ESS farms
- Behind-the-meter solar + storage
- Peak-shaving projects
- Power-expansion projects
- Grid-constrained sites
- Renewable energy firming
- Energy shifting and dispatch optimisation
Frequently Asked Questions
No. Solunar supplies the BESS technology and integration layer behind your team — you keep the project, the client and execution.
Yes — Solunar can provide technical due-diligence materials, performance and degradation assumptions, safety summaries and an O&M strategy to support financing.
Planning a Solar + BESS project? Let's build it together.
Whether you are preparing for LSS, CRESS, SELCO, private PPA, industrial solar or utility-scale storage, Solunar can support your project with technical, commercial and integration expertise.