15% rOI & Zero Carbon: heat pumps, insulation, 3X-glazed windows & solar panels

We received a lot of positive feedback on David Green’s Zero Carbon Home presentation which you can watch here. He used clear language - although we detected an accent (jk) - to inspire and entertain us.  

His story is like many of ours.
David decided he wanted to cut his carbon footprint. 
He had no idea how to do it. 
He looked for books on the topic, but nothing was that clear so he figured out how to do it himself and is now sharing that information with us. 
Good news is that he lives in Dover so there is no tropical magic happening. 
What did happen is that he: 

1. Is earning a 15% return on his investments in heat pumps, insulation, triple-glazed windows and solar panels 
2. Cut his heating bill and electricity bills to ZERO
3. Got his carbon footprint to ZERO
4. Is now sharing his tips with us!
5. Used his background and degrees in physics (Oxford) and MBA (Harvard)
6. Does NOT push uncomfortable cool temp living, eating vegan or who to vote for
7. Offers a free copy of his e-book 

Check out his website for all of the insider tips.
​Thank you David!