Contact
Corrections and data questions are genuinely welcome.
Who runs this site
WattCost is built and maintained by Amit Sharma, a marketer and licensed real-estate salesperson based in Auckland, New Zealand. It is one of a small family of free data tools published at amit.marketing.
Get in touch
Email hello@amit.marketing with the page URL and what looks wrong. Data corrections are prioritised — if a figure on this site disagrees with the primary source, the primary source wins and the page gets fixed.
Press, data reuse and licensing
The underlying datasets are public (see Data & method) and you are free to use them at source. If you want to cite a page here, a plain link is all that is asked.