End-to-end Battery Energy Storage System development — from site assessment and DNSP connection to full EPC delivery and long-term O&M across Australia.
ARCH specialises in grid-connected BESS project development for commercial, industrial, and utility-scale applications across Australia. We manage the entire project lifecycle — from initial site evaluation and DNSP connection agreements through to construction, commissioning, and ongoing operations & maintenance. Our proven delivery model leverages trusted OEM partnerships with Weltrus New Energy and Amani Power EMS to ensure reliable, compliant, and bankable projects.
Land Acquisition to DA Approval
Comprehensive site evaluation including geotechnical surveys, topographic analysis, and environmental assessments. We manage development approvals, construction certificates, and land lease negotiations — delivering shovel-ready sites for BESS deployment.
Connection Applications to Commissioning
End-to-end management of grid connection with DNSPs including Essential Energy, Ausgrid, Energex, and others. We handle preliminary enquiries, connection service agreements, network studies, substation capacity assessments, and final commissioning.
Engineering, Procurement & Construction
Full EPC management with Weltrus New Energy as DC equipment vendor and trusted AC partners. We oversee civil works, electrical installation, HV transformer integration, switchgear, and metering — all compliant to AS/NZS 4777, AS/NZS 3000, and NEM rules.
Amani Power EMS Platform
AI-embedded edge control with real-time load balancing, dispatch optimization, and cloud monitoring. Supports arbitrage trading, FCAS services, voltage support, and PV firming — integrated with site SCADA for full operational visibility.
Arbitrage, FCAS & Grid Services
Maximising project returns through multi-stack revenue models: energy arbitrage (buy low, sell high), Frequency Control Ancillary Services (FCAS), network deferral, and potential PPA agreements for voltage support in specific substations.
ARCH + Weltrus Joint Venture
Dedicated O&M partnership between ARCH SUNSAIL Australia and Weltrus New Energy. Includes 15-year performance warranty management, staged battery augmentation strategies, PCS overhaul planning, and 24/7 remote monitoring.
Weltrus New Energy (EPC & DC), Amani Power (EMS), and established civil/electrical subcontractors — all proven in large-scale Australian projects.
Full adherence to AS/NZS 4777, AS/NZS 3000, NEM rules, and DNSP requirements — ensuring bankable, insurable projects from day one.
Multi-stack revenue model (arbitrage + FCAS + network services) with 15-year performance warranties and staged augmentation strategy.
Proven design templates deployed across multiple sites — reducing development risk, securing equipment pricing, and accelerating time-to-commission.
ARCH-Weltrus JV provides dedicated Australian-based operations & maintenance with 24/7 remote monitoring and rapid response capability.
From single-site commercial installations to multi-site portfolio development — our standardised approach scales efficiently without compromising quality.
Secure land with suitable topography, proximity to DNSP substation infrastructure, and development zoning. Conduct geotechnical, environmental, and grid capacity assessments.
Secure Development Approval (DA), Construction Certificate, and all required permits including fire safety, hazardous materials, and environmental compliance.
Submit connection enquiry, negotiate Connection Service Agreement (CSA), complete network studies, and secure final connection offer with injection capacity confirmation.
Final detailed engineering design (30% → 100%), equipment procurement with Weltrus DC systems and AC partners, civil works tendering, and construction scheduling.
Civil works, electrical installation, HV transformer and switchgear setup, battery container deployment, EMS integration, DNSP commissioning, and grid connection.
Full commercial operation with AI-driven EMS dispatch, energy arbitrage trading, FCAS participation, and ongoing O&M through ARCH-Weltrus JV partnership.
ARCH is actively developing grid-connected BESS projects across Australia's key energy markets. Our development pipeline spans multiple states, leveraging established DNSP relationships and standardised engineering templates for rapid deployment.
