In　this　paper,　an　improved　hybrid　MADM　method　based　on　interval　Decision　Making　Trial　and　Evaluation　Laboratory　(DEMATEL)　and　interval　regret　theory　are　put　forward　to　evaluate　five　renewable　energy　alternatives　for　Fujian　province,　China.　Firstly,　the　volatility　of　the　evaluation　information　and　the　subjectivity　of　experts　or　stakeholders　are　taken　into　account.　Second,　political　factors　are　further　considered　based　on　existing　research.　Third,　the　influence　of　the　subjective　initiative　of　decision　makers　on　the　decision　result　has　been　paid　attention　to.　Furthermore,　the　result　of　the　analysis　shows　that　the　extended　regret　theory　method　should　set　different　parameters　to　reflect　the　preferences　of　decision　makers.　The　ranking　results　of　renewable　energy　are　different　with　different　parameter　settings.　For　example,　when　α=0.1,δ=0.1,　the　priority　of　clean　energy　in　Fujian　Province　is　hydropower,　followed　by　wind　energy,　solar　energy,　geothermal　energy,　and　biomass　energy.　Sensitivity　analysis　indicates　that　the　model　possesses　good　serviceability.　Based　on　considering　different　parameter　settings,　the　Fujian　government　should　invest,　in　order　of　priority,　in　these　renewable　energy　sources　to　obtain　benefits.　And　the　projects　related　to　these　renewable　energy　sources　should　be　evaluated.　©　2022