Solar Lighting Upgrade Project of Heydar Aliyev Centre Park, Baku, Azerbaijan

Project Overview

This lighting renovation project is located in Baku, capital of Azerbaijan. Heydar Aliyev Centre is a world-famous modern cultural landmark characterized by smooth and continuous curved architecture without sharp corners. It is equipped with a large landscape park, lakeside walkways, lawns and pedestrian squares for art exhibitions, cultural events and public recreation. Before renovation, the original wired lighting relied on municipal power supply with high cabling cost. Some walkways lacked lighting, leading to safety risks at night, while old fixtures consumed high power and required heavy maintenance. The upgrade covers the external landscape park, lakeside trails, lawn nodes and leisure squares. Total renovated park area is approximately 42,000㎡, and the total length of pedestrian paths is about 1,650m.

The scheme adopts solar garden lights and solar wall lamps. Solar garden lights are deployed along walkways and lawn nodes to provide soft functional lighting. Solar wall lamps are mounted on low walls and corridor facades to decorate curved building surfaces and create gentle night atmosphere. The whole system works on independent solar power without cable laying or mains connection. Warm-white static lighting is adopted, no colorful dynamic effects, matching the minimalist modern architectural style.

Local Environmental Conditions

Baku sits beside the Caspian Sea with subtropical semi-arid climate. It is hot and dry in summer, mild in winter, with sea breeze and salt mist in spring and autumn. Outdoor fixtures must resist salt corrosion and large day-night temperature differences and maintain stable energy storage during low sunlight periods. The park receives tourists and cultural events all year round with crowded visitors on holidays. The lighting system needs stable long-term operation for landscape effect and pedestrian safety.

Project Objectives

1. Raise the average illuminance of lakeside walkways from 6–11 lux before renovation to 18–24 lux, guarantee visitor safety at night.
2. Reach illuminance uniformity ≥0.65 for walkways to eliminate dark zones.
3. Deploy solar garden lights on lawns and paths, install solar wall lamps on corridor walls to build quiet gentle night scene.
4. Apply warm-white static lighting without coloured dynamic lights to fit the minimalist style of cultural centre.
5. Control annual luminaire failure rate within ≤3%, adapt to coastal salt mist and large temperature difference outdoor environment.
6. Remove cable wiring, shorten construction period, reduce maintenance workload by 58%~62% and cut continuous electricity cost.
7. Support night sightseeing and small cultural events, accommodating about 2,200 visitors daily.

Project Outcomes

After handover, the average illuminance of lakeside walkways reaches 21 lux within target range, with uniformity 0.68 meeting ≥0.65 requirement. Solar garden lights evenly arranged along lawn and trails deliver continuous soft path lighting. Solar wall lamps decorate walls, highlighting the flowing curved shape of the building with gentle light.

The solar lighting system stores energy by photovoltaic panels without external cables. It effectively resists Caspian sea salt mist, measured annual failure rate is 2.7% below target. Cable laying work is eliminated to reduce construction cost. Maintenance workload drops by 60% compared with old mains lighting with zero ongoing electricity expense.

The park enjoys quiet and elegant night view. Soft warm light from solar fixtures balances landscape atmosphere and pedestrian safety. This project becomes a benchmark solar landscape lighting case for modern landmark park in Azerbaijan.