Tuesday 21 May 2019 at 6pm

EIT Taradale, Lecture Theatre 1

Geoff Henderson
Founder and Managing Director, Windflow Technology

Admission by Gold coin donation

It is a truism to state that the sun powers the Earth’s biosphere, has done for billions of years, and will do for billions to come.  And that our civilisation has developed in the last 5,000 years, but now has an existential dilemma due to the way we harness the sun’s energy and have inadvertently been trapping too much of it.

Four paradigm shifts about energy have been slowly unfolding since the 1970s:

• Fossil solar energy needs to transition to sustainable solar energy
• Excess solar energy is being trapped by the products of burning fossil solar energy causing “global warming”
• That warming is causing temperature rise (and in turn more energetic weather events), but also sea-level rise which may be more of a threat to civilisation
• The abundance of solar energy means that the problem of (and hence solution to) global warming is more economic than technical.

This paper presents some simple numbers which underpin these shifts. However the process remains slow because of societal inertia.  A sustainable solar energy future will arrive, but the transition could be tempestuous and diluvian for human civilisation unless collective decisions manage to effect a rapid, peaceful transition.  The are some signs of hope that Generation X and the Millennials will act with more urgency than the Baby-Boomers have to date.

Geoff Henderson is the founding director and currently the Managing Director of Windflow Technology Ltd which, since 2001, has raised $150 million to build 106 mid-size (500 kW) New Zealand-made wind turbines in NZ and Scotland. He has been involved in wind power engineering since 1984, including seven years in California and England working at the forefront of wind power technology.