Score Explorer
Score Anatomy Radar Chart
Overall Score: 29
What the Score Bands Mean
EPC A is roughly 65–75 on our scale. The top band, 90 to 100, is where homes become energy-positive prosumers. For strong new builds, that should increasingly be the standard. For retrofits, the right path is lower demand first, then smart electrification, then generation and storage.
High-consumption homes. Poor insulation, fossil fuel heating. Pure grid burden.
Average UK stock. Partial improvements, possible gas boiler, minimal renewables.
Well-retrofitted. Lower demand, smart electrification, some solar. Approaching EPC A territory in the right order.
Net-zero home. Energy balanced annually. Solar + battery covers full consumption. This is EPC A's ceiling.
Energy-positive prosumer. Net grid exporter. Virtual power plant node, and increasingly the right standard for strong new builds.
A typical UK 3-bed semi at score 100: ~6,000 kWh/year solar generation, ~4,000 kWh/year consumption, ~−2,000 kWh/year net export. Smart heat pump uses thermal mass for load-shifting. V2G-capable EV adds 40–80 kWh of dispatchable storage. Home participates in demand response, contributing to grid stability.
Research: Hedar et al. (2023) "Buildings as Batteries," Building Simulation journal.
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