Incorporating electronics into folk contexts (while at the same time transforming these contexts) isn’t just a contemporary thing.
There are examples going back to the early 1970’s – basically as long as electronics have been widely available commercially.
While your focus may be on contemporary perspectives, I think it would be interesting to explore this broader history, and to do so especially with an openness to the diverse worldviews and mindsets that flow in and out of this work. I hope you are able to interview at least some of these people as we are talking in some cases records that came out 45 years ago, there may not always be time to wait.
One of the more fully realized approaches is a folk album played entirely on Serge modular in 1980, by Will and Kalima Sawyer. (Synthesis - Planetary Peace). This was reissued in 2016, on Love All Day. The Sawyers’ current project though not a musical one is also quite interesting: http://starclusters.cc/public_html/STARCLUSTERS_ebook.html
– you may find contact information here or through Kalima Sawyer’s Facebook
One of the earlier electronic folk ensembles was the Hawaiian band These Trails. Their only album (S/T) came out in 1973. They mixed ARP 2600 with guitars and other instrumentation and delay effects. The major creative force, Margaret Morgan, passed long ago. However ,the person responsible for most of the electronics, Dave Choy, is possibly still active. I read in an interview with Don Slepian (very notable in the Hawaiian electronic scene in the 1970’s) to this effect, but I’ve since lost it. Since I don’t know how to track down the “right” Dave Choy I’d suggest contacting Don Slepian [Note: Slepian did not himself have anything to do with this album] http://donslepian.com
For more background on the people behind These Trails, there is a tragic biography of Morgan’s sister Karen, __ by Karen’s daughter Tara Bray Smith, called West of Then https://www.amazon.com/West-Then-Daughter-Journey-Paradise/dp/0743236807/ref=sr_1_1?ie=UTF8&qid=1524621658&sr=8-1&keywords=Tara+Bray+Smith. It should add some depth to the story.
The legendary festival band, Zorch, also played live with three VCS3’s. There lone album, recorded in 1975 but not released until the 2000’s, was done on a Synthi 100 in Peter Zinovieff’s EMS studio while Zinovieff was away. Howard Scarr’s contact is here: http://www.zorchmusic.com/hscarr/. While this especially stretches the definition of “folk” (and may be more similar to Tim Blake’s early projects), it’s hard not to see in this light, given the nature of the venues where this music was originally performed.
Emerald Web, their first album Dragon Wings and Wizard Tales(1979) definitely touches on folk (Flight of the Raven), though subsequent efforts are more ambient. More to the point the members (Kat Epple and Bob Stohl) seem to have come from a traditional folk background, so it would be very interesting why they turned to electronics. Kat Epple is still around and very active with soundtracks and such: http://www.katepple.com
Johannes Vester and of Sand/ALU must also be mentioned, with Sand the more folk-oriented project, though a very experimental and non-traditional one (which I love, but it is a bit different from the projects mentioned above). The lesser-known Dusseldorf band Dom can also be mentioned more loosely in this context (Gabor and Laszlo Baksay).
Everything I mentioned is from 1973-1980, so it might provide an interesting counterpoint to the approaches considered thus far.
I should also mention many of the more experimental English bands in the early 80’s, on the fringes of the postpunk/industrial scenes: Legendary Pink Dots, Eyeless in Gaza, and the recently rediscovered Woo, who were there all along (with their first album on Cherry Red) . but this perhaps stretches things too far. But there is a strong folk undercurrent in this type of music which obviously made ample use of electronics.
OK, that’s enough for now. Much to say from a personal angle but I’ll leave the discussion for now with these links.