import type { EnergyIntensityInput, EnergyIntensityResult } from './types.js';
/**
 * Calculate energy intensity (energy per unit of production or revenue)
 *
 * @formula MJ/unit = totalMJ / units, kWh/unit = MJ/unit / 3.6
 * @reference ISO 50001 Energy Management
 * @param input - Total energy, production units, optional revenue
 * @returns Energy intensity in MJ/unit, kWh/unit, and optionally MJ/USD
 * @throws {RangeError} totalEnergyMJ < 0, or productionUnits ≤ 0
 */
export declare function energyIntensity(input: EnergyIntensityInput): EnergyIntensityResult;
//# sourceMappingURL=energyIntensity.d.ts.map