System Design

Proposed Technology:

 The solar ROOF TOP net metering system here is consisting of Mono perc solar modules with fixed angle mounting systems and the solar inverters shall be of On grid net metering system.

Benefits of Proposed Technology:

 Mono Perc solar modules are paving the way for PV system which has an increased PV system efficiency. This ever-increasing demand for high-efficiency panels is certainly pushing consumers to opt for mono PERC panels. The panels can be used for all kinds of solar projects but are more suitable for rooftop installations. In addition, the panels can be manufactured to produce a more energy-dense module without much increase in build cost.

Different reasons to choice for Mono Perc solar panels over others:

• Cost Effective

Although the costs of Mono Perc panels are much more expensive, the efficiency level of each panel is relatively higher which justifies the capital expenditure. Also, as the number of solar panels decreases, the cost of installation & components such as Inverters, racking, and wiring will eventually reduce, saving a large amount of project cost

• Highly Flexible Performance

 Mono Perc solar panels are boosted with extra layers which make them better equipped to perform well in both low light conditions and high temperatures compared to traditional panels.

 The solar power plant where Mono Perc panels are used starts generating power much early during the day and can perform till later in the day eventually producing more energy than any other traditional panels.

• Requires minimum modifications

Mono Perc solar panels require minimum modifications in the manufacturing process to the existing process. The manufacturers can start producing the higher efficiency mono perc panels at a minimum cost without large capital expenditures.

• Highly flexible

Mono Perc solar panels provide end-users with more options during panel placement without any hindrance to the efficiency levels. They are ideally suited for residential consumers who have space restrictions on their rooftops.

• Low cost of manufacturing 

Apart from high-efficiency Mono Perc panels can be produced using existing infrastructure technology with minimal investment in the manufacturing process. The Mono Perc solar cell technology is relatively straightforward and requires minimum learning for the production staff who is already involved in other forms of solar cell manufacturing.

• Slower rate of power degradation

The Mono Perc modules have lower degradation rates in the long term resulting in more electricity being generated when compared with traditional modules.

System Block Diagram 

Solar PV Modules / Array:

 Solar cells produce direct current from light, which can be used to power equipment or to recharge a battery. Cells require protection from the environment and are usually packaged tightly behind a glass sheet. When more power is required then cells are electrically connected to form photovoltaic modules. A photovoltaic module is a packaged interconnected assembly of photovoltaic cells, which converts sunlight into electrical power. The cells are hermetically sealed between glass and a back cover (Toddler) to protect them from harsh environments.

 The detailed technical specifications of both types of modules are provided below.

Module Mounting Structures: 

The module mounting structure is designed for holding a suitable number of modules in Series/Parallel. The frames and leg assemblies of the module mounting structures are of Mild Steel power coated with suitable sections of Angle, Channel, Tubes, or any other sections. All hardware considered for fastening modules with this structure is of very good quality GI or powder-coated MS. The module mounting structure is designed in such a way that it will occupy minimum space without sacrificing the output from SPV panels at the same time it will withstand severe wind speed up to a maximum of 120 KMPH.

Technical Specification – Module Mounting Structures

Material           GI

Coating  SILVER COLOUR

Tilt angle         15° to 18°

Foundation      PCC for rooftop fixing

Hardware        GI or MS with powder coating

Monitoring System: Through the Wifi monitoring system:

Cables:  The size of the cables between array interconnections, array to junction boxes, junction boxes to Isolator and ROOF TOP, etc., is so selected to keep the voltage drop and losses to the minimum.

Earthing:  The array structure of the PV Panels will be grounded properly using an adequate number of Earthing kits. All metal casing/shielding of the plant shall be thoroughly grounded to ensure the safety of the Solar ROOF TOP system