Dobbie Case Study | Commercial Solar Energy | Infinite Energy



Dobbie is a Perth foundry with a reputation for high-quality machine shop capabilities. Dealing with both ferrous and non-ferrous metals. Dobbie specialises in a wide range of industrial waterworks fittings, valves, fire protection equipment and specialty castings for the rail and resource sectors. Established in 1940, Dobbie has shaped their reputation not only for the excellence and quality but also the cost-effectiveness of their products without compromise to environmental health and safety.

In December 2014, Infinite Energy was selected by Perth foundry, Dobbie, to supply, engineer, install, and commission an on-site Solar PV System. In order to significantly reduce Dobbie’s annual electricity spend, two objectives needed to be met:

Objective 1: Undertake a two-stage installation of a 100kW Solar PV system to reduce the number of units purchased from the grid.

Objective 2: Switch electricity providers to Infinite Energy to reduce the amount paid per unit of grid-supplied electricity.

Following the overwhelming success and significant savings generated by their Solar PV System, Dobbie commissioned Infinite Energy to expand their system by 100kW in 2017, which brings their total capacity up to 200kW.

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Company Dobbie 
Location Malaga
Installation Date 12/2014 & 04/2017
Industry Manufacturing, Engineering & Transport
Solution Solar Power & Grid Electricity - System capacity 99.84 kW
  • 384 x REC Solar Panels
  • 5 x SMA Sunny Tripower Inverters
  • Integrated Remote Grid & Solar Monitoring Solution
CO2- e. Abatement Per Year 244 tonnes
CO2 Equivalent Reduction 976 trees saved per year
Energy Output Per Year 322,463kWh
Solar % of Consumption 13%
Grid Electricity % of Consumption 87%
Projected Payback Period 5.1 years
Year 1 Return on Investment 18%
10 Year NPV $200,711
Annual Savings $82,854

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