Win More Solar + BESS Projects — We're the Partner Behind Your EPCC
Solunar is not an EPCC and never competes with you. We are the specialist BESS technology partner behind the EPCC — supplying battery selection, PCS/EMS integration, proposal support and long-term O&M, so you can bid for and deliver bankable Solar + BESS projects without building deep storage capability in-house.
Your clients now want storage — not just solar
As Malaysia moves into a new phase of solar deployment, Battery Energy Storage Systems are becoming central to utility-scale solar, C&I solar, LSS, CRESS, grid support, power expansion and maximum-demand management. More and more tenders and clients now expect Solar + BESS, not solar alone.
But BESS is a different discipline from solar EPCC. It demands battery chemistry and selection, PCS and EMS control logic, fire and thermal safety, protection coordination, warranty alignment, degradation planning and long-term O&M. Building all of that in-house is slow and risky — especially on your first few projects. That is exactly the gap Solunar fills.
The challenge BESS adds for EPCCs
Solar EPCCs are strong in PV design, procurement, installation and execution — but storage raises the technical and commercial stakes:
- 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 make you more competitive — we don't replace you
Solunar is not positioned as a traditional solar EPCC contractor. Our role is to give EPCC companies specialist BESS knowledge, product access, integration capability and technical confidence — working quietly behind your team.
You keep the client relationship, the solar scope and site execution. Solunar supplies the energy-storage technology layer. Together you deliver a more complete, future-ready Solar + BESS solution — and you look stronger to the client.
You bring the project. We bring the BESS technology backbone.
EPCC vs Solunar: who does what
A clear division of roles so you always stay in control of the client and the project.
| Responsibility | EPCC Company | Solunar Energy |
|---|---|---|
| Client relationship | Owns | Supports |
| Site execution & civil/electrical works | Owns | |
| Battery / PCS / EMS selection | Supported by Solunar | Leads |
| BESS technical proposal & sizing | Supported by Solunar | Leads |
| System integration | Supported by Solunar | Leads |
| Long-term BESS O&M | Optional | Supports |
Why EPCCs partner with Solunar
Five ways the partnership helps you win more work and deliver it with less risk:
1. Strengthen your proposal
Position BESS for peak shaving, power expansion, energy shifting, backup, grid support, CRESS and investment cases — with the technical and financial value spelled out for the client.
2. Reduce technical risk
We structure the BESS architecture from the start — avoiding sizing errors, poor battery/inverter matching, EMS issues, safety gaps and warranty disputes.
3. Access reliable products
Proven BYD battery solutions, GoodWe inverters and batteries, EVE BESS and multi-brand options for any project size or application.
4. Multi-brand integration
We coordinate battery, PCS, EMS, SCADA, transformers, switchgear, inverters and grid — without locking you into one configuration.
5. Win over funds & banks
A convincing technical and commercial story on safety, warranty, performance, degradation and O&M — the things lenders and investors check.
6. Long-term O&M backing
Monitoring, maintenance and after-sales support that protect performance and warranty — and keep your client happy for years.
What we provide to EPCC partners
End-to-end support from first enquiry to long-term operation:
- BESS system design support
- Battery solution selection
- PCS and EMS integration
- Utility-scale and C&I BESS architecture
- Technical proposal & sizing support
- Safety and reliability planning
- Vendor and product coordination
- Commercial positioning for developers, funds and banks
- Commissioning support
- O&M and after-sales for BESS assets
How the EPCC partnership works
A clear five-step path from first conversation to long-term support:
- 01
Project discussion
You share the requirement, client objective, site information, load profile, solar design or tender documents.
- 02
BESS solution review
We 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 support O&M, monitoring, performance review, troubleshooting and future expansion.
Ideal EPCC partners
The partnership 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 LSS, CRESS and corporate PPA projects
Frequently Asked Questions
No. You own the client relationship, the solar scope and site execution. Solunar works behind your team on the energy-storage technology layer only.
As early as the proposal or tender stage, so battery sizing, PCS/EMS selection and O&M planning are correct before pricing is fixed — avoiding costly changes later.
Solar EPCCs, electrical and M&E contractors, and renewable energy firms in Malaysia and Southeast Asia that want to deliver Solar + BESS — including those bidding for LSS, CRESS and corporate PPA work.
Engagement depends on project scope and partnership level — contact Solunar for a tailored discussion.
Add a BESS technology backbone to your EPCC business.
Whether you are preparing for a C&I project, utility-scale solar farm, LSS submission, CRESS opportunity or township energy project, our team is ready to support you behind the scenes.