Our motivation was purely driven by a desire to reduce our carbon footprint as much as we could. Heat pump and solar PV were the biggest changes we could make.

Exactly as per @editor Mars.

The smelly old oil boiler in our off-grid house was getting near life expired, although it cost us almost nothing to maintain and was bomb proof. Having spent most of my professional career in the upstream oil and gas energy industry, I wanted to do my bit personally to be part of the change.

3.6kW solar PV +13kW BESS and a 10kW ASHP has been our investment at home. It has reduced our home CO2 footprint by 75%, and completely transformed the home comfort level. Also, it has slashed our energy bill from £2,200 per year to £800 a year. It cost about £23K with the £5K BUS grant deducted, but is without doubt money well spent.

Having a daughter at the more mature age of 48 shifted my opinion somewhat. Man-made climate change is a problem which her generation will find much more troubling, challenging and costly than mine. One day she will ask me what our generation did to try and mitigate the effects of climate change. The truthful answer will be 'we did very little', but I don't want to look her in the eye in 10 or 20 years time and say 'I did nothing'.

We've not yet changed either car from IC to EV, but that will come in time. We run the cars we buy into the ground, but as my wife and I both mostly work from home now, the CO2 impact of the cars we own is much less than it was when I in particular was clocking up high mileage working away regularly.

I still work in oil and gas, but also in industrial renewable energy projects now as well. 

1. David Attenborough's plea "For those in a position to make a difference then please make it happen and make a difference"

2. Over 30 years of mountain climbing and seeing with my own eyes the shear destruction of the environment, most noticeably the almost extinction of glaciers in the Alps. These are essential for fresh water supplies in Europe and without them Europe could become a desert.

3. The realisation that my generation maybe the last Grandparents, my Son and Daughter will be lucky to see old age and my Grand Daughter may not even live to see her 35th Birthday.

The other reason was to free myself from the tyranny of log splitting!

😆

Actually I enjoy a bit of log splitting but I can understand why having to do it differs from wanting to do it.

if that helps save the planet then okay but it wasn’t my first concern if I’m honest.