Always — Scope 1 is burned fuel, so every avoided tonne is avoided fuel spend plus, for ETS-exposed sites, ~€77/t of avoided carbon cost. That's why efficiency-led Scope 1 programmes are the rare ESG initiative the CFO sponsors.
From our guide: Scope 1 Reduction — full context, charts and sources there.
Boilers, kilns, heat exchangers, valves and steam lines lose energy continuously. Inzonex makes patented (UK GB2508992.1) removable modular insulation — snap-fastened covers engineered per temperature tier, not generic off-the-shelf jackets: