Eco Features Civil Defence and Emergency Management

Site Reuse

Renewable Energy Generation

Solar Photovoltaic System Description

Solar Hot Water System

Energy Efficiency

Standalone Systems

Water Efficiency

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To view the design and floor plan for the Civil Defence and Emergency Management building click on the download below.

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Design and Floor Plan (Size 1477K)

Site Reuse

The new building was constructed on the site of the original Civil Defence headquarters, where it has been located since 1968, and the new facility was designed to blend into the local residential neighbourhood and minimise stormwater run - off from the site.

Renewable Energy Generation

The Civil Defence and Emergency Management building generates around 10% of its total energy requirements onsite from solar photovoltaic and solar hot water systems.

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June 2009 - Sunny Portal Info Report Waitakere City Civil Defence E (Size 19K)
May 2009 - not available
April 2009 - not available

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Solar Photovoltaic System Description

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1050 Wp Solar Array made up of 6 x Sharp Solar 175W Panels (Size 263K)

1 x SMA Sunny Boy 1100 Grid Connect Inverter (Size 170K)

Conergy Solar Famulus Array Frame

1 x SMA Sunny Web Box Logger

The photovoltaic system can generate up to 1.05kW peak output

The electricity produced is used on site and there is no battery storage

Total area = 7.8m²

SMA Sunny Web Box Logger produces reports on the electricity generated by the solar photovoltaic system:

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October 2009	(Size 15K)
September 2009	(Size 23K)
August 2009	(Size 15K)
July 2009	(Size 17K)
June 2009	(Size 17K)
March 2009	(Size 17K)
February 2009	(Size 15K)
January 2009	(Size 15K)
December 2008	(Size 15K)
November 2008	(Size 15K)

Solar Hot Water System

Beasley Centurion 315 litre solar hot water system with 2 x panels. The stainless steel hot water cylinder is located on the ground floor

Total area = 4m²

The total cost of the project was $2.4 million, with renewable energy representing around 1% of the total project cost. Anticipated savings from the combined solar technologies is 5,587 kWh per annum , resulting in a reduction of 3.9 tonnes of CO2. The investment in solar technology has delivered annual savings of $950, providing a simple payback of 27 years.

As a result of the experience to date , the following recommendations would be made to other installations:

The retailer’s metering should be capable of both measuring electricity flows in and out.
The photovoltaic system should supply power to a phase which has a demand consistently above the maximum output of the photovoltaic system, or
Request that a single phase input three phase output inverter be installed to ensure the generated power is spread throughout the three phase supply.
Install a Sunny WebBox or similar information system to gain performance information on the photovoltaic system.
Plan for the information system to be linked to the internet via a link that does not potentially compromise the security of an organisation’s computer network.

Energy Efficiency

Energy efficiency initiatives include levels of insulation that are higher than the building code, floor-level displacement ventilation system for the ground floor, light sensors, LCD computer screens, and T5 fluorescent lighting.

Standalone Systems

A 77 kVA diesel standby generator and a 15 kVA UPS system; a 4500 litre water mains back-up; and a 8,000 litre standby septic tank have been installed to assist the site's standalone capability.

Water Efficiency

Water efficiency initiatives include two underground water tanks - a 7,000 litre rainwater tank; low flow shower; water efficient toilets; and rainwater gardens in the car park and alongside the building.