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About us

The engineers behind 8m20s

The name comes from the sun: its light takes about 8 minutes and 20 seconds to reach your roof.

Darcy Ocker

Systems Engineer · Registered Installation Electrician

Darcy holds a Master's degree in Electrical Engineering from UCT. Since 2015 he has specialised in the design and installation of solar and electrical systems for residential and commercial use. Twenty years in the defence industry bring technical rigour and systems thinking to renewable energy infrastructure.

Karel Rautenbach

Professional Engineer (Pr Eng), ECSA registered

Karel focuses on renewable energy compliance, technical project management and municipal grid integration. His expertise ensures installations meet SSEG requirements and the regulatory standards for professional engineering sign-off.

How we work

Every system starts with measured data, not guesswork. We log your real demand for four weeks before we design anything, have the structure signed off by an engineer, and commission every installation with a Pr Eng report and an electrical CoC.

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