Solar photovoltaic (PV) systems convert sunlight into electricity and require planning for optimal installation angles and orientation. An inverter in a solar PV system converts the variable direct current (DC) output of the solar panels into alternating current (AC) that can power homes or feed into electrical grids. Solar PV systems provide advantages such as reduced energy costs, reliability, and reduced environmental impact but also have disadvantages including high installation costs, dependence on sunlight, and limited storage capacity.

1. © 2015 City and Guilds of London Institute. All rights reserved. Page 1 of 2
Level 3 Diploma in Electrical Installations
(Building and Structures)
Unit 301 Worksheet 5
Unit 301: Understand the fundamental principles and
requirements of environmental technology systems
Worksheet 5: Solar photovoltaic
Using your notes and the internet (refer to Resource 1, ‘Micro-renewable energies’) answer the
following questions:
1. In small groups and using the internet, discuss the planning requirements, including
Building for solar photovoltaic systems.
2. Again, in small groups and using the internet, discuss the optimum angle and
orientation for installing solar photovoltaic systems.

2. © 2015 City and Guilds of London Institute. All rights reserved. Page 2 of 2
Level 3 Diploma in Electrical Installations
(Building and Structures)
Unit 301 Worksheet 5
3. What is the purpose of the ‘invertor’ in a solar PV system?
4. List six advantages of solar PV systems.
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5. List three disadvantages of solar PV systems.
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