Projects:  Rouse Hill Shopping Centre

Objectives

Rouse Hill Shopping Centre Cogeneration Project

  • To effectively reduce the running costs of the new Rouse Hill shopping centre
  • To reduce the impact on the environment of the new shopping centre
  • To generate electricity and hot water heating for the new building
  • To use this project as one of 2 standard test cases for the building BASIX requirements

Project Scope

The Rouse Hill shopping centres is located in western Sydney and was looking to decrease the running cost of the centre. The NSW government were also interested in this project and this system became the test project for the new NSW BASIX requirements.

Urban energy was engaged to design, project manage, supply and install an efficient alternative energy system to the facility in order to reduce the electricity usage, reduce the running costs for the centre and to provide an efficient source of water heating for the centre. The system installed is a high life expectancy parallel grid Cogeneration system complete with waste heat recovery system.

System Design

The system utilises a sophisticated asynchronous 30kW Cogeneration system complete waste heat recovery system to efficiently generate a proportion of the electricity and efficiently generate hot water heating for the new centre. This system is designed to operate for 15 hours of the day over the peak and shoulder electricity tariff periods.

The system:

  1. Creates electricity for use within the Rouse hill shopping centre
  2. Creates heat for use in the hot water generation

The hot water is produced for “free” from the waste heat of the Cogeneration plant. The system will provide a peak electrical output 30kW, which provides a “free” 62kW of thermal energy for hot heating. Urban Energy’s Cogeneration systems can reach thermodynamic efficiencies of 95% and achieve full synchronisation to the grid in around 45 seconds.

Project outcome, carbon dioxide and cost savings of system

Urban Energy successfully designed, installed and commissioned this system. The system has been operating successfully for over 12 months and has saved a significant quantity of greenhouse gasses for the offset electricity and heating costs of the facility.

By installing this efficient alternative energy electricity generation and waste heat system, the Rouse Hill shopping centre has reduced its running costs and saved significant quantities of Carbon Dioxide, the main contributor to global warming. This system is expected to have a cost payback period of less than five years.

This system has provided an estimated saving of 146 Tonnes CO2 per year compared with a purchasing electricity from the grid and buying gas to generate heat. Therefore this system is equivalent to planting 731 Trees per year or to taking 32 cars off the road per year.

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