Willingness to pay for key attributes of energy sharing in Germany: data and materials

Data, materials and code for a discrete choice experiment on energy sharing in Germany. We surveyed German households online in 2025. Respondents chose between energy sharing offers that differ in organizer, investment and co-determination, additional statutory goals, contractual mode and electricity costs, and their current electricity contract. Files FileWhat it isResults_Survey_Final_Sample.xlsxRaw survey data of the final sampleQuestionnaire_Energy_Sharing_DE_EN.pdfThe questionnaire, German original with an English translationExemplary_Choice_Set.pngAn example choice set as respondents saw itPreregistration_DCE_Energy_Sharing_20250422.pdfThe preregistrationdesign_final.RDSThe experimental design used in the study, an spdesign object with 40 choice sets in 4 blockssimulationresults_Pretest_2_Predicted_Priors500respondents_1500.RDSDesign simulations with the priors assumed when generating the designsimulationresults_Pretest_2_Estimated_Priors500respondents_1500.RDSDesign simulations with the estimates of the second pretest as true parameterssimulationresults_Pretest_2_powa88sim500respondents1500.RDSDesign simulations with true parameters chosen to reach a power of 88%simulationresults_Pretest_2_powa95sim500respondents1500.RDSDesign simulations with true parameters chosen to reach a power of 95% Each simulation file holds 500 runs with 1,500 respondents each and is about 790 MB. README.md repeats this description. Code The code is on GitHub at https://github.com/sagebiej/energysharing_dce and downloads what it needs from this record, so you do not have to collect the files by hand. design/ generates the design and runs the simulations. It downloads design_final.RDS before it simulates, and the 4 simulation files before it renders the simulation reports. analysis/ prepares the data and estimates the models. It downloads Results_Survey_Final_Sample.xlsx before it prepares the data. We will add an archived version of the repository to this record. Preregistration We preregistered the study on OSF: https://doi.org/10.17605/OSF.IO/95BE2