Designing net-zero energy buildings for the future climate, not for the past

► We generate 50 years of future hourly data that take climate change into account. ► The weather data are compared to horizon years and to historical data. ► Future weather data is used to simulate the performance of a net-zero energy building. ► The net-zero target is missed on most future years. ► Design of net-zero energy buildings should take climate change into account.