Project Taminga

Key Challenges

The Taminga project presented several challenges that required specialised solutions:

• Multiple Tenancies and Energy Profiles: The range of energy requirements from tenants, including a high-consumption cold storage facility, created a complex energy landscape. This required a system capable of balancing and allocating energy efficiently across varying consumption levels.
• Complex Site Infrastructure: The multi-roof design and distributed electrical points posed challenges for creating a cohesive, behind-the-meter solar and battery solution. Coordinating the energy flow across these different sections demanded precise planning and advanced engineering.
• Regulatory Compliance and Future-Proofing: Ensuring the project met all local regulations was essential, alongside building in the capability for future system expansions or upgrades. This included making provisions for potential growth in energy demand and integrating new technologies as needed.

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Tailored Solution

To address these challenges, Powertech Energy developed a comprehensive and custom-tailored solution:

• 545kWp Solar Energy System: This system was strategically installed across the Taminga site’s various rooftops, optimised for different roof orientations to maximise solar energy capture.
• 1.2MWh Containerised Battery Energy Storage System (BESS): Paired with an advanced EMS, the BESS provided efficient energy distribution, reduced reliance on grid energy during peak times, and contributed to significant cost savings.
• Integrated Energy Management: The EMS worked alongside a Battery Management System (BMS) and a Power Conversion System (PCS) to adapt to the site’s diverse energy loads and seamlessly manage energy flow. This helped reduce grid draw during peak periods and stabilise energy bills for tenants.
• Remote Monitoring and Control: Powertech Energy equipped the system with an intuitive interface for real-time monitoring of solar PV strings, battery storage, and inverters. This ensured effective offsite management, proactive maintenance, and long-term system reliability.
• Tailored Energy Billing Model: Powertech Energy implemented a system where landlords could pass on energy costs transparently to tenants, billing them based on actual usage. This not only provided transparency but also created a new income stream for the property owners.
• Optimised Energy Retail Setup: The setup allowed Pro Active Property to achieve maximum returns on their BESS investment through strategic market exposure, further enhancing the financial viability of the project.

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Outcome

The Taminga project delivered impressive results, benefiting all stakeholders involved:

• For Tenants:
  • Lower Operational Costs: Tenants saw reduced energy expenses thanks to increased reliance on on-site renewable energy.
  • Stable and Predictable Energy Bills: Peak demand management helped tenants, particularly the energy-intensive cold storage unit, maintain consistent energy costs.
  • Energy Security: The combination of solar power and large-scale battery storage provided tenants with a reliable and resilient energy supply.
  • Discounted Power Rates: Landlords provided tenants with discounted rates, resulting in significant cost savings compared to market energy prices.
  • Transparent Billing: Individual billing based on actual energy usage ensured clear and fair costs, empowering tenants to manage their energy consumption effectively.

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• For Property Owners:
  • Increased Property Value: The integration of the solar and BESS system enhanced the attractiveness of the property, appealing to environmentally conscious and cost-focused tenants.
  • New Revenue Opportunities: Reduced peak grid demand and the potential to sell excess energy back to the grid created additional revenue streams.
  • Sustainable Business Model: The project aligned with sustainability goals, reduced carbon emissions, and bolstered the ESG profile of Pro Active Property.

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• For the Grid:
  • Reduced Load During Peak Periods: By cutting the site’s demand during high-usage times, the project supported grid stability and contributed positively to the wider energy network.

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