export interface PvgisResult {
    peakSunHoursPerDay: number;
    annualIrradianceKwhM2: number;
    annualEnergyKwhPerKwp: number;
}
export declare class PvgisService {
    private readonly logger;
    fetchIrradiance(lat: number, lon: number, tiltDeg?: number, azimuthDeg?: number): Promise<PvgisResult | null>;
}