Lappeenranta has been a clean energy pioneer for years. BeyondEE targets the next frontier: using digital twin technology and demand response systems to optimise district heating in real time, reduce peak fossil fuel use, and cut costs for building owners and residents. The pilot installs demand response controls in residential and service buildings connected to the city's district heating network, with a custom-built optimisation application that coordinates building-level flexibility with network-wide production — creating a smart, responsive heating system that replaces gas-fired backup capacity with renewables during peaks.