M9 photovoltaic panel power supply

Can a solar PV system connect to a domestic electrical supply?

Solar energy, a clean and renewable source of power, is becoming increasingly popular for domestic use. Many homeowners are curious about how they can integrate solar photovoltaic (PV) systems into their existing electrical setup. In this blog, we will guide you through the process of connecting a Solar PV system to your domestic electrical supply.

What are the requirements for photovoltaic (PV) generators?

Requirements for Photovoltaic (PV) Generators (currently in development by IEC TC 82) – will set out general installation and safety requirements for the PV equipment. The Scope of Section 712 in BS 7671:2008 includes PV power supply systems including systems with a.c. modules but, currently, excludes any form of battery storage.

What type of inverter do I need for a mains-connected PV system?

Inverters for mains-connected PV systems should be type approved to the Energy Networks Association’s Engineering Recommendation G83/1 (for systems up to 16 A). NICEIC operates a Microgeneration Certification Scheme (MCS) which covers the design installation and testing of environmental technology installation work associated with dwellings.

Should a PV system be isolated before electrical work is performed?

A PV system is an additional source of supply, so both the mains supply and the PV supply must be securely isolated before electrical work is performed on the installation.

Why is thin film PV a good choice for home solar systems?

As the PV materials used in these types of photovoltaic cells are sprayed directly onto a glass or metal substrate, the manufacturing process is therefore faster are cheaper making thin film PV technology more viable for use in a home solar system as their payback time is shorter.

What is PV module efficiency?

PV module efficiency is the ratio of the electrical power output Pout, compared to the solar power input Pin, hitting the module. Pout can be taken to be PMAX, since the solar cell can be operated up to its maximum power output to get the maximum efficiency. The efficiency of a typical solar array is normally low at around 10-12%.