Precision
Every system is modelled and optimised for your specific site, roof orientation and usage profile. No templates, no shortcuts.

A team of engineers, operators and strategists who've made solar our life's work. Based in Auckland, working across New Zealand.
Watthaus Strategy was born from a simple belief
that the intersection of real estate and renewable energy
is where the greatest impact happens.
From residential rooftops in the suburbs to large-scale solar farms in the regions, every project we take on, we treat as our own.
Our process is straightforward: site assessment, tailored design, professional installation and long-term monitoring. We don't cut corners, and we never upsell hardware you don't need.

Connecting land, capital and innovation in clean energy to create a renewable future for New Zealand and beyond.

Strategic insight, expert collaboration and seamless execution, every single time.
The principles we hold ourselves to on every rooftop and every hectare.
Every system is modelled and optimised for your specific site, roof orientation and usage profile. No templates, no shortcuts.
Straight answers. Clear pricing, honest timelines and realistic ROI projections, before you sign anything.
Every installation reduces carbon emissions. We measure and report the environmental impact of every project we complete.
The same four steps on a suburban roof or a regional solar farm.
Understanding the site, the load and the goals before anything is designed.
Modelled and optimised for the specific site. No templates.
Quality work by a team that treats every project as its own.
Measured, reported and reviewed for the life of the system.
Tāmaki Makaurau
The regionsFrom residential rooftops in the suburbs to large-scale solar farms in the regions.



Auckland Business