Helping EPCCs Deliver Solar + BESS Projects With Confidence
Solunar is built to support EPCC companies, not compete with them. We work behind the EPCC as a specialist BESS system integrator, battery solutions partner and technical support provider — helping you strengthen proposals, reduce execution risk and deliver bankable energy storage projects.
Why this matters now
As Malaysia moves into a new phase of solar deployment, Battery Energy Storage Systems are becoming increasingly important for utility-scale solar, C&I solar, LSS6, CRESS, grid support, power expansion and maximum demand management.
But BESS projects are more complex than conventional solar EPCC works. They require battery selection, PCS integration, EMS design, safety planning, protection coordination, thermal management, warranty alignment and long-term O&M planning. This is where Solunar comes in.
The challenge for EPCCs
Solar EPCCs are strong in PV design, procurement, installation and execution — but adding BESS raises the technical and commercial complexity significantly:
- Choosing the right battery technology for the project
- Integrating batteries with PCS, EMS, SCADA, transformers and grid
- Understanding battery safety, fire protection and thermal management
- Preparing convincing proposals for developers, funds and banks
- Managing multiple brands across battery, inverter, PCS and EMS
- Ensuring performance, warranty and long-term serviceability
- Supporting peak shaving, power expansion and grid-stability use cases
- Avoiding unnecessary technical, commercial and after-sales risk
We help EPCCs become more competitive — not replace them
Solunar is not positioned as a traditional solar EPCC contractor. Our focus is to support EPCC companies with specialist BESS knowledge, product access, integration capability and technical confidence.
This lets EPCCs continue leading the client relationship, project execution and solar scope — while Solunar supports the energy-storage layer. Together, we help clients receive a more complete, future-ready Solar + BESS solution.
Why EPCCs partner with Solunar
Five ways the partnership strengthens your business:
1. Strengthen your proposal
Position BESS for peak shaving, power expansion, energy shifting, backup, grid support, CRESS and investment cases — clearly explaining the technical and financial value.
2. Reduce technical risk
We review and structure the BESS architecture from the start — avoiding sizing errors, poor battery/inverter matching, EMS issues and warranty disputes.
3. Access reliable products
Access proven BYD battery solutions, GoodWe inverters and batteries, and multi-brand options for different project sizes and applications.
4. Multi-brand integration
Coordinate the technical interface across battery, PCS, EMS, SCADA, transformers, switchgear, inverters and grid — without being locked to one configuration.
5. Support funds & banks
Prepare a more convincing technical and commercial story on safety, warranty, performance, degradation and O&M for developers, funds and lenders.
What we provide to EPCC partners
End-to-end support from early proposal to long-term operation:
- BESS system design support
- Battery solution selection
- PCS and EMS integration
- Utility-scale and C&I BESS architecture
- Technical proposal support
- Safety and reliability planning
- Vendor and product coordination
- Commercial positioning for developers, funds and banks
- O&M support for BESS assets
Ideal EPCC partners
The programme suits companies that want to expand into Solar + BESS without taking unnecessary technical risk:
- Solar EPCC companies
- Electrical contractors
- Renewable energy project developers
- M&E contractors
- Utility-scale solar contractors
- C&I solar contractors
- Infrastructure project contractors
- Township energy infrastructure partners
- Companies bidding for LSS6, CRESS and corporate PPA projects
How the EPCC Partner Programme works
A clear five-step path from first discussion to long-term support:
- 01
Project discussion
You share the project requirement, client objective, site information, load profile, solar design or tender requirements.
- 02
BESS solution review
We review the use case and recommend the suitable configuration, system size, product option and integration approach.
- 03
Proposal support
We help you prepare a stronger technical and commercial proposal for the client, developer, fund or asset owner.
- 04
Product & integration coordination
We support product supply, vendor coordination, system architecture, PCS/EMS integration and commissioning planning.
- 05
Long-term support
After completion we can support O&M, monitoring, performance review, troubleshooting and future expansion.
Frequently Asked Questions
Solar EPCCs, electrical and M&E contractors, and renewable energy firms in Malaysia and Southeast Asia that want to deliver Solar + BESS projects — including those bidding for LSS6, CRESS and corporate PPA work.
No. You lead the client relationship, project execution and solar scope. Solunar works behind your team on the energy-storage technology layer.
Engagement depends on project scope and partnership level — contact Solunar for a tailored discussion.
Become a Solunar EPCC Partner.
Whether you are preparing for a C&I project, utility-scale solar farm, LSS6 submission, CRESS opportunity or township energy infrastructure project, our team is ready to support you.