Solar for industrial parks: how to do it properly

• The tenant invests directly on the roof it occupies and consumes all output on site.
• ESCO (zero-capex solar): an investor funds and installs the system and sells power below the grid tariff under a long-term contract.
• The park infrastructure owner invests on leased factory roofs and offers renewable power as a park utility.
• Buying renewable power through the DPPA mechanism when roof area cannot reach the renewable share a customer demands.

• Roof usage rights for the full contract term (usually longer than the current lease cycle).
• Responsibility for structure, waterproofing and handling roof repairs or sheet replacement.
• Asset treatment at lease end or relocation: removal, transfer or buy-out.
• Connection point, metering and rules for allocating output when park electrical infrastructure is shared.

These points are reference material for negotiation preparation and do not replace legal advice on a specific contract.

Self-consumption rooftop solar follows Decree 58/2025/ND-CP together with guidance from the Ministry of Industry and Trade and EVN. Inside an industrial park, the documentation must also line up with the building's approved construction, environmental and fire protection files.

• Review the building's compliance on investment, construction, land, environment, electrical safety and fire protection.
• Complete the connection agreement and commissioning process with the utility.
• Design maintenance walkways, setbacks and rapid shutdown provisions for firefighting access on the roof.
• Update property and business interruption insurance after installation.

• Self-consumed solar output feeds scope 2 greenhouse gas inventory data.
• Where roof area is insufficient, combine DPPA renewable supply and I-REC certificates to raise the renewable share.
• Standardise metering data for ESG reporting and parent-company RE100 roadmaps.
• Add BESS when peak demand reduction or shifting load to high-tariff windows matters.