01
Quality hardware
The JA Solar JAM54D40 series and Sigenergy SigenStor platform, chosen for long-term reliability and warranty depth, not margin.
The Auckland Residence.
Multi-level, split roof pitches, an occupied family home and a 20 kWh battery stack. Residential solar, done right.
Auckland · ResidentialHybrid + battery
System size10.12 kW
Solar panels22 × 510W JA Solar
Energy controllerSigen EC 10.0 SP
Battery storage2 × SigenStor, 20 kWh
(01) — Project overviewMulti-level · Two roof pitches
Installed across a multi-level Auckland home 
this project needed purpose-engineered scaffolding, split-level panel placement across two roof pitches and careful electrical penetrations through finished living spaces.
Twenty-two high-efficiency Tier 1 JA Solar panels pair with a Sigen Energy Controller and a 20 kWh SigenStor battery stack, giving the homeowner energy independence, time-of-use optimisation and grid-outage resilience from day one.
(02) — PerformanceTracked in the Sigen app
The numbers, in full.
Modelled at design, tracked live in the Sigen app, with annual performance reviews built into the relationship.
Annual production
0kWh
Estimated ROI
0% p.a.
CO₂e avoided
0t p.a.
Operating life
0+years
(03) — On siteScaffold · Storage · Array
Structural access
Battery integration
The finished array(04) — Energy engineered forwardOur approach
Commercial-grade, at home.
Systems designed for long-term performance, specified with bankable hardware, and installed by a team that puts quality work above everything else.
02
Battery-first thinking
20 kWh of storage engineered to maximise self-consumption, deliver backup resilience and use time-of-use tariffs to the full.
03
Whole-home approach
We assessed the existing electrical infrastructure, future EV charging and consumption profile, so the system delivers measurable lifetime value.
(05) — Design considerationsSix disciplines
Planned before a panel went up.
Multi-level installs demand more than standard planning. Roof access, structural loading, electrical routing and finished interiors all need careful coordination.
01Structural access
Purpose-built scaffolding was staged across the full perimeter. Panel placement was optimised across two roof bearings to maximise generation without compromising structural loading or roof integrity.
02Electrical routing
Cable runs were planned to avoid finished living spaces. The Sigen Energy Controller sits in an accessible external service area, with the switchboard sized for current load and future EV charging capacity.
03Battery integration
The 20 kWh SigenStor stack provides meaningful overnight coverage and grid-outage resilience. Placement was chosen for ventilation clearance, weight distribution and short cable runs to the main switchboard.
04Architecture & aesthetics
The layout sits cleanly within each roof plane and presents well from the street. Every roof penetration was flashed and sealed to manufacturer specification, preserving the weathertightness of the existing envelope.
05Safety & site management
The occupied home stayed fully habitable throughout. A formal site-specific safety plan covered fall protection, daily reinstatement and tool management, with no disruption to the household routine.
06Long-term performance
Monitoring runs through the Sigen app, with real-time generation, consumption and battery state data. Annual performance reviews are built into the relationship from commissioning day.
(06) — Waste auditResponsible site management
0%Diverted from landfill
Only 1% went to landfill.
Disciplined packaging removal, material segregation and recycling partnerships meant almost nothing from this job ended up in the ground.
Recycled
107kg
Packaging, cable offcuts, plastic wrap and foam protectors
Landfill
1kg
Contaminated and mixed materials
TOTIKA · certification in progressSEANZ · membership in progress