Energy Storage: A Primer (2D)

This 2D companion drives the same three storage models as the 3D version — a battery integrating charge power against a round-trip efficiency, a pumped-hydro pair storing energy as gravitational potential (E = m·g·h), and a capacitor bank storing it in an electric field (E = ½CV²) — through a flat gauge view built for reading the numbers rather than orbiting a scene: a technology selector swaps between them, a power-draw slider and charge/discharge toggle drive the same physics, and a scrolling chart plus a running "lost to losses" counter make the efficiency trade-off between fast-responding batteries/capacitors and bulk pumped-hydro storage directly visible over time instead of only implied by a stat readout.