Design principle DP4: Give data access to customers
Customer loyalty programs promise the greatest success if they include an option for customers to be granted access to all relevant and verifiable data, reducing the information asymmetry between electricity supplier and customer.
Source paper
This design principle is proposed by From ambivalence to trust: Using blockchain in customer loyalty programs (Manuel Utz, Simon Johanning, Tamara Roth, Thomas Bruckner, Jens Strueker, 2023).