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The
UK's Strategic PV Network Study
The
aim of the Strategic PV Network Study was to identify the actions
necessary to prepare electricity distribution networks for
the possible large-scale connection of dispersed photovoltaic
systems. The study methodology included an examination of
a series of possible future scenarios for the large-scale
uptake of photovoltaic power systems connected to the UK's
low voltage electricity distribution network. The objective
is to assess the impact that these scenarios could have on
the electricity network.
The
main technical areas of concern included:
- network
voltage control
- power
quality (including harmonics, power factor and flicker)
- safety
and protection (including islanding)
Other
areas of concern include:
- connection
agreements with PV generators
- implications
on distribution price control (i.e. distribution use-of-system
(DUoS) charges)
- the
impact on infrastructure costs
- the
effects of renewable energy systems with unsecure, variable
generation characteristics (e.g. effects on spinning reserve
and unloading of conventional plant)
- the
value of the energy from PV to the integrated system
As
part of the Strategic PV Network Study a series of PV roll-out
scenarios have
been developed which forms the basis of the network impact
modelling work.
In addition, a risk
analysis methodology was been developed which aims to
quantify the risk of islanding associated with high levels
of PV penetration.
The Phase 1 Report of the Study can be downloaded here. |
