Leroy Merlin  Leroy Merlin () is a French headquartered home improvement and gardening retailer serving several countries in Europe, Asia, South America, and Africa. Generally established on the outskirts of major towns and cities, Leroy Merlin stores are large centres (9000 m2 on average) providing self-service and sales assisted services. Its business is centred on six main sectors: DIY, building, gardening, sanitary equipment, renewable energy, and interior decoration. In 1923, Adolphe Leroy and Rose Merlin, associates in private and business life, opened a business of American surplus. Strengthened by this first success, they decided to sell DIY products and supplies at moderate prices. In 1960, the firm was named Leroy Merlin. It became a precursor, as it was the first company to offer free delivery services. Spanish electricity utility Endesa has installed a 100 kW solar plant, covering 1700 m² with 670 photovoltaic panels, for Leroy Merlin at its superstore in Rivas Vaciamadrid, Spain.