This is my third Annual Report for our energy transition project. 2018 was a special year as it was the first full year where we had our Tesla Powerwall 2 in place – this made a big difference! We are now getting much closer to our Fossil Fuel Free goal: in 2018 90% of our electricity came from our solar PV system (60% direct; 30% via the battery (and 10% from the grid)). About 98% of our hot water energy use was from solar PV and about 90% of our EV energy use was from solar.
Petrol is the area where we now need to focus – unfortunately we’re not going to achieve any great reduction in our transport carbon footprint until we are able to buy a new generation EV. Where are they?
You can download the 2018 Annual Report from here.
You can view an embedded version of the report below.
Net Zero Emissions Household 
Really enjoyed your annual report Dave. Looking forward to reading about your experiences with the new personal heating devices over winter. I have already ordered my wife a personal heating pad after learning about it through your blog.
I see your fridge using 350kwh. Have you considered a Chest Fridge like this? http://mtbest.net/chest_fridge.html We have one and I measured the power consumption…50kwh/year! It’s a little less convenient reaching into it vs a conventional vertical fridge, but our family has adapted without much complaint.
Thanks for the feedback Nate. I hope your wife enjoys the heating pad – it still works really well for my wife. I like the idea of the chest fridge but I must admit I didn’t get a too enthusiastic response when I suggested it to people: ‘will take up too much space’; ‘I wouldn’t be able to find what I want’. That aside, the energy savings are very impressive and with the right promotion I think it could work for a lot of people.
Just an update on my 2018 Annual Report. Given the persistent hot weather, I couldn’t resist the temptation to buy the Close Comfort personal air conditioner (Figure 30) before the end of summer. We’ve had it a few weeks now and I’m really impressed – gives a very nice focused personal cooling effect when using about 255W. [I guess this would be closer to 300W on a very hot day.]