What is a roof mounted photovoltaic system guidance?

The guidance refers only to the mechanical installation of roof mounted integrated and stand-off photovoltaic systems; it provides best practice guidance on installation requirements and does not constitute fixing instructions.

How a roofing PV system should be installed?

The roofing PV system shall be installed after being evaluated by construction experts or engineers and with oficial analysis results for the entire structure. It shall be proved capable of supporting extra weight of system racking structures and PV modules.

Can a PV system be integrated into a flat roof?

In some cases, PV systems can be integrated directly into flat roofs (Figure 25), although this is not common because the efficiency of PV modules is reduced because the optimum angle relative to the sun is not achieved.

How do I design a photovoltaic and solar hot water system?

Provide an architectural drawing and riser diagram for the homeowner showing the planned location for future photovoltaic and solar hot water system components. Space requirements and layout for photovoltaic and solar water heating system components should be taken into account early in the design process.

How much does a flat plate solar thermal panel weigh?

an appropriate system of mechanical lifting should be provided. Flat plate solar thermal panels can weigh up to 80 kg each when installing an integrated PV or solar thermal system, the underlay should always be checked for tears or other signs of damage and replaced as necessary.

How much space does a photovoltaic system need?

Photovoltaic modules installed on the ground or on a flat surface occupy an area of approximately 20 m2/kWp, avoiding shading between the rows of modules. The design of a photovoltaic system, from the public operator’s network to the photovoltaic modules, requires careful planning and compliance with local regulations.