Transportation in Dalarna can be tricky, but not impossible. I walked 18km from my accomodation in Mora, to Vinas and after that to Sollerön. From Sollerön I had two options: to walk back to Mora 13km the shortest way or to take bus number 323. I found the bus a challenge, being in the countryside. So I accepted it.
The website for the transportation company is dalatrafik.se
Their buses look really modern and have wifi, I was surprised. The ticket from Sollerön to Mora costs 30sek and took 35 minutes.
The bus respected the punctuality, which was also a nice suprise.