import type { CarbonEquivalent } from "../types.js";
export declare function getGridCarbonIntensity(region: string): number;
export declare function getVcpuWattage(instanceFamily: string): number;
/**
 * Calculate monthly CO2 emissions for idle compute.
 * Formula: idleHoursPerMonth * vCPUs * wattagePerVcpu * gridIntensity / 1000
 * Returns kg CO2 per month.
 */
export declare function calculateIdleComputeEmissions(vcpus: number, instanceFamily: string, region: string, idleHoursPerMonth?: number): number;
/**
 * Calculate CO2 for storage (EBS, S3).
 * Approx 0.000392 kWh per GB per month for HDD, 0.000652 for SSD.
 */
export declare function calculateStorageEmissions(sizeGb: number, region: string, storageType?: "ssd" | "hdd"): number;
/**
 * Estimate monthly cost savings from switching instance generation.
 * Old-gen Intel instances are typically 30-40% more expensive than Graviton.
 */
export declare function estimateInstanceSwitchSavings(currentHourlyCost: number, savingsPercent?: number): number;
/** Translate kg CO2 into human-understandable equivalents */
export declare function getCarbonEquivalents(kgCo2PerMonth: number): CarbonEquivalent[];