Renewable Energy (RE)
High-Performance Solar PV & Storage for Cost, Carbon & Energy Security
Hasilwan delivers renewable energy systems that reduce electricity cost, lower carbon emissions, and improve energy resilience across commercial, industrial, infrastructure, and utility environments. We design and implement grid-connected and hybrid solar PV solutions including BESS integration built for safe operation, strong performance, and long-term reliability. With proven delivery across rooftop, ground-mounted, and BIPV applications, we support Malaysia’s green transition with practical, bankable renewable energy infrastructure.
System Performance & Bankability
Right-sizing based on site demand and available space, using proven design practices to maximise generation yield, system uptime, and long-term ROI.
Grid & Safety Compliance
End-to-end compliance for interconnection, protection, and operational safety ensuring the system is approved, stable, and safely integrated with utility and facility networks.
Lifecycle Value & Maintainability
Designing for long-term operation with accessible maintenance pathways, monitoring readiness, and performance assurance so the system continues delivering value for years.
What We Deliver
Rooftop Solar PV (Commercial & Industrial)For facilities aiming to reduce energy bills and carbon footprint through on-site generation.
For facilities aiming to reduce energy bills and carbon footprint through on-site generation.
- Rooftop solar PV system design & installation
- Grid-connected solar PV solutions (including ATAP-ready configurations where applicable)
- Site feasibility & capacity assessment
- Performance-focused engineering & commissioning
Building Integrated Photovoltaics (BIPV) For projects that integrate solar into architectural structures while delivering clean energy.
For projects that integrate solar into architectural structures while delivering clean energy.
- BIPV integration for roof, skylights, & facade applications
- Solar carpark structures (BIPV canopy solutions)
- Design coordination with building & M&E requirements
- Practical solutions that enhance comfort & visibly demonstrate sustainability
Off-Grid Hybrid + Energy Storage (BESS) For remote, rural, or reliability-critical sites requiring stable power without full dependence on the grid.
For remote, rural, or reliability-critical sites requiring stable power without full dependence on the grid.
- Hybrid power supply design (PV + storage + supplementary generation if required)
- Microgrid architecture & control strategy
- Energy storage integration for intermittent renewable balancing
- Load-matching & dem& pattern optimisation
Ground-Mounted Solar PV For sites with available l& & larger generation requirements.
For sites with available l& & larger generation requirements.
- Ground-mounted PV layout & development planning
- Civil & electrical works integration
- Utility interface & interconnection engineering
- Scalable design for future capacity expansion
Utility Scale / Large Scale Solar (LSS) For utility-scale renewable generation & large energy portfolios.
For utility-scale renewable generation & large energy portfolios.
- Utility-scale development support & project delivery
- Grid interface engineering & compliance coordination
- Plant electrical design, protection, & system integration
- Track record includes development & investment in 100 MWp+ solar capacity through national programmes & initiatives
Where Renewable Energy Is Applied
Renewable energy is most effective where energy cost, sustainability targets, or resilience requirements are high & where system reliability & compliance matter.
Where Renewable Energy Is Applied
Renewable energy is most effective where energy cost, sustainability targets, or resilience requirements are high & where system reliability & compliance matter.
Compliance & Standards
SEDA Programme Requirements
Suruhanjaya Tenaga (ST) Requirements
TNB / SESB / SEB Standards
MS IEC Electrical Standards
DOE & OSHA Electrical Safety
ISO 9001, 14001, 45001
Hasilwan QHSE Protocols
Project Highlights
Dewan Bandaraya Kuala Lumpur (DBKL)
Renesas Semiconductor (Malaysia) Sdn. Bhd.
LATAR Highway
Engage With Our Team
Discuss your renewable energy goals, feasibility, or interconnection requirements with our engineering specialists.