export interface Total {
    kilowattHours: number;
    co2e: number;
    cost: number;
}
export type Totals = {
    [key: string]: Total;
};
export declare function initialTotals(serviceNames: string[]): Totals;
export declare const displayServiceName: (key: string) => string;
export declare const displayWattHours: (kilowattHours: number) => string;
export declare const displayCo2e: (co2e: number) => string;
export declare const displayCost: (cost: number) => string;