For a short period of time, Mendonça also worked as a freelance sustainability researcher and writer in which he produced two key studies.

The first reviewed the first year performance and outcomes of the UK feed-in tariff in 2011, and the second assessed The Green Economy in Bristol and the West of England, which was published in January 2012.

He served on the advisory boards of the Alliance for Renewable Energy, Global Urban Development, Our Future Planet and Raw Foundation.

[7] This non-fiction book explores the subject of ET-human hybrids from the inside, by interviewing eight individuals who understand that they are part-extraterrestrial and part-human.

Through interviews with 26 people who have been active in the field for a combined total of over 650 years, the books explore the scale and scope of the subject.

Mendonça interviewed a wide variety of subjects, including scientists, journalists and therapists, many of whom claim ET contact in different forms.

The key topics discussed are: how and why the contact takes place; how it has shaped their lives; and their ET-contact techniques and safety protocols.

[citation needed] In his music production Mendonça's artist name is sokamiru, and he has released four albums: On Out Into, Into Galactic, Hot Wisdom and Portals.

[11] On Out Into is a collection of tracks created as explorations of a wide variety of modules and techniques, principally for his sokamiru YouTube channel.