CREATE TABLE table_27328 ("Region" CLOB, "Public network" CLOB, "Own/community generator" CLOB, "Solar panel" CLOB, "Other source" CLOB, "None" CLOB)

Which region has 0.6% none?
SELECT "Region" FROM table_27328 WHERE "None" = '0.6%'
SELECT "Region" FROM "table_27328" WHERE "None" = '0.6%'