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for sports lighting
Developers of floodlit sports facilities accept that planning approval is critical and
that a new project can’t be built without it, but few are aware of the need to assess
the power supply. Tony Hill talks about the issues involved, and suggests an early
project review to enable an accurate budget to be calculated
I
n the early stages of a feasibility Existing installations developers not addressing all the
study for new facilities, adequate While the checklist for existing facilities factors on a particular site.
provision of power and the iden- will be similar, the matter is complicated The aim is to identify the total power
tification of associated costs are by the need to clearly evaluate the spare load for the project. To do this a spread-
essential in order to establish a budget. capacity of the existing supply. sheet of loads needs to be created, as this
Similarly, on existing sites, an evalua- This evaluation needs to take into will help verify the impact of load varia-
tion of the supply is necessary to assess account existing loads on the system in tions (the diversity factor) under various
whether the load created by new sports addition to the floodlighting. The pre- site operating conditions at times when
lighting can be accommodated or dicted future load can then be included the floodlighting will be in operation.
whether an upgrade will be required. in the calculations and the total power A contingency then needs to be added
requirement can be compared to the to the values calculated – typically 20 per
New installations actual capacity available. cent. The sum of these two items shows
It’s important to know which elements the total power [Kva] required.
of the total development require a How to assess the The units are Kilo volt amperes [Kva].
power supply. Some may include: power load required Most readers will be more familiar
• New buildings – clubhouse or pavilion You can seek initial assistance from with the term Kilowatts [Kw], from the
• Groundstaff storage buildings either a local NICEIC registered contrac- domestic environment, however this
• Irrigation tor or an Electrical Services Consulting doesn’t take into account the efficiency
• Sports floodlighting Engineer. Often, due to local knowledge of the devices being operated. Domesti-
• Media and TV requirements and contacts, an experienced contractor cally, due to product electrical efficiency,
• Power for special events or consultant can minimise the diffi- this isn’t critical, but with large projects,
• Safety lighting and tannoys culties that can arise by inexperienced this must be taken into account.
Issue 3 2009 © cybertrek 2009 Read Sports Management online
sportsmanagement.co.uk/digital 45
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