Rooftop solar
Rooftop solar: start with the factory’s electricity needs
Roof space is the starting point. A suitable proposal must connect site conditions with when and how much electricity the facility uses.
Understand demand before choosing capacity
Electricity bills and load profiles show when power is used, including working days and weekends. Comparing demand with expected solar generation helps assess on-site consumption and identify assumptions that require further validation.
Assess the roof and electrical infrastructure
A survey should consider the roof’s structure, remaining life, materials, shading and maintenance access. Existing electrical systems, equipment locations, connection conditions and safety requirements also affect the design. A large roof alone does not establish the capacity that can be installed.
Compare proposals using consistent assumptions
An assessment should cover investment, operation and maintenance costs, expected generation and the allocation of responsibilities. Savings and payback estimates are meaningful only when accompanied by the underlying data, calculation method and contract conditions.
Prepare for a discussion with VNPLUS
Start with the address, current photos, estimated roof area, operating schedule and available electricity bills. These provide a basis for identifying survey requirements and the scope of the next assessment.