Software feels weightless, but it isn't. Every query, every render, every retry draws power somewhere. As workloads grow, that invisible cost becomes visible — in both emissions and cloud bills.
Energy-aware design is a quiet discipline: cache aggressively, fetch only what you need, batch what you can, and avoid the retry storms that quietly double your footprint.
The good news is the green choice and the fast choice are usually the same choice. Efficient code does less work to produce the same result — which is the whole point of engineering in the first place.