• A.C. Module

    Integrated module/inverter assembly where the electrical interface terminals are a.c only. No access is provided to the dc. side
  • Array

    Mechanically and electrically integrated assembly of PV modules, and other necessary components, to form a d.c. power supply unit
  • Array Cable

    Output cable of a PV array
  • Array junction box

    Enclosure where all PV strings of any PV array are electrically connected and where protection devices can be located if necessary
  • Atrium

    A usually skylighted central area on a building
  • BIPV

    Building Integrated Photovoltaics
  • Canopy

    An ornamental, rooflike projection or covering
  • Cell

    Basic PV device that can generate electricity when exposed to light such as solar radiation
  • Curtain Wall

    (In a framed building) an exterior wall having no structural function
  • D.C Main Cable

    Cable connecting the PV generator junction box to the d.c. terminals of the PV inverter
  • Distribution Network Operator

    The organization that owns or operates a Distribution Network and is responsible for confirming requirements for the connection of generating units to that Network
  • Electricity Network

    An electrical system supplied by one or more sources of voltage and comprising all the conductors and other electrical and associated equipment used to condict electricity for the purposes of conveying energy to one or more customer’s installations, street electrical fixtures, or other networks
  • Façade

    Any side of a building facing a public way or space and finished accordingly
  • feed-in tariff

    A feed-in tariff (FiT) is a policy mechanism designed to encourage the adoption of renewable energy sources and to help accelerate the move toward grid parity
  • Generator

    Assembly of PV arrays
  • Generator junction box

    Enclosure where all PV arrays are electrically connected and where protection devices can be located if necessary
  • Glass (PV)

    The encapsulation of cells between two sheets of glass
  • Grid connected system

    A PV generator operating in ‘parallel’ with the existing electricity network
  • Installation

    Erected equipment of a PV power supply system
  • Integrated

    Using PV technology within, rather than on a building’s structure
  • Inverter

    Device that converts d.c. voltage and d.c. current into a.c. voltage and a.c. current
  • Inverter Isolating Transformer

    Where the right input and output windings are electrically separated by double or reinforced insulation
  • Isolation

    A function intended to cut off for reasons of safety the supply from all, or a discrete section, of the installation by separating the installation or section from every source of electrical energy
  • Kilowatts peak (kWp)

    Units for defining the rating of a PV module where = kW generated at stc
  • kW

    Kilowatt
  • kWh

    Kilowatt hour
  • Module

    Smallest completely environmentally protected assembly of interconnected cells
  • MW

    Megawatt
  • Photovoltaics (PV)

    Capable of producing a voltage when exposed to radiant energy, especially light.
  • Rainscreen System

    Rainscreen cladding is the attachment of an outer skin of rear-ventilated cladding to a new or existing building most often used to protect from the weather
  • ROCs

    Renewable Obligation Certificates equivalent to 1MWh of PV generation
  • Shading System

    Protects built environments from the discomforts of sun, wind, cold and rain
  • Solar

    Using or operated by energy derived from the sun
  • String

    Circuit in which PV modules are connected in series, in order for a PV array to generate the required output voltage
  • String cable

    Cable connecting PV modules to form a PV string
  • String fuse

    A fuse for an individual PV stringa fuse for an individual PV string
  • Supply Cable

    Cable connecting the a.c. terminals of the PV inverter to a distribution circuit of the electrical installation

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