Performance evaluation of short-term cross-building energy predictions using deep transfer learning strategies

•3 DTL strategies obtain 75% PIRs than LSTM for data shortage BEP tasks in OFs and UCs.•Recommend Fine-tune for next few weeks BEP by balance between time cost and performance.•Recommend DANN for nearly a year BEP by outperformed accuracy than Fine-tune, DaNN.•Evaluate DTL prediction accuracy by varying available training data in both source and target buildings.