Summation

Summation is a Perth electrical engineering and sustainability consultancy. We're engineers and building scientists.

Our energy team designs solar PV and battery energy storage systems, manages Western Power and Horizon Power grid connection approvals, and provides energy audits and power system studies across WA.

Our sustainability team delivers decarbonisation pathway assessments, Green Star, NABERS, carbon neutral, ESG advisory services and building energy modelling for new developments and existing facilities.

We're independent — we don't sell products or hold supplier relationships, so our advice reflects what's right for the project. We work across the full state, including remote and regional WA.

Every project is led by a Director, a Chartered Professional Engineer or accredited sustainability professional. We don't have account managers — the person you talk to is the person doing the work.