Project Overview
UDCS Consulting was engaged to undertake a grid-connected PV study to support the installation contractor during the tender phase for a 99kW solar system at John Barnes & Co Locksmiths.
The objective of the study was to assess site and network constraints, review the local distribution network, and determine the most suitable system size. A key focus was identifying a solution that would either achieve a zero-electricity bill or deliver the most economical outcome within current regulatory requirements.
Scope of Works
UDCS Consulting delivered a detailed technical assessment and concept design, including:
- On-site inspection and shade analysis using a Solmetric SunEye to assess the impact of shading and spatial constraints
- Review of Energex and private low voltage supply infrastructure to determine system limitations
- Analysis of historical electricity billing data to identify load profiles and future demand trends
- Development of a concept grid-connected PV system design, including selection of modules, inverters, cabling, and racking systems
Design Approach
The system design was developed to balance site constraints, network limitations, and commercial objectives.
Detailed modelling incorporated shading impacts, manufacturer performance data, and standard environmental variables to accurately predict system output. The design prioritised optimal system sizing within the available installation area while maximising return on investment and ensuring compliance with all relevant standards and network requirements.
Project Outcomes
- Identified maximum feasible system size of 92kW (368 PV modules) based on site constraints
- Estimated system generation of approximately 365 kWh per day
- Projected annual energy cost savings of $23,775
- Delivered a compliant design in accordance with AS/NZS 4777, Clean Energy Council guidelines, AS/NZS 3000, and AS/NZS 3008
