Introduction "Laki 131" Ltd. is a small enterprise in the sector of light metal casting (NACE 2453). Its activities include energy-intensive processes such as melting, high-pressure casting, and metal processing, which generate an annual consumption of approximately 1,920,000 kWh. This accounts for 15-20% of operating expenses, estimated at 600,000–720,000 BGN at prices of 0.31 BGN/kWh in 2025. The existing photovoltaic power plant (PVPP) with a capacity of 110 kW generates 150–200 MWh annually, covering only 8–10% of needs. The project envisages the construction of a local energy storage system with a capacity of 119 kW, including batteries and a hybrid inverter, integrated with the existing PVPP. Key steps: Design and planning; Installation; Integration and testing: Connecting to the PVPP for accumulating surpluses; staff training for monitoring; Monitoring and reporting: Generating data on savings and emissions, with potential for expansion (e.g., EV integration). Investment focused on own consumption. Expected Results The project will reduce energy costs by 25–30% (150,000–216,000 BGN/year, or 12,500–18,000 BGN/month) through optimization of PVPP surpluses, avoidance of peak tariffs, and reduction of losses. Environmentally: CO2 reduction by 100–150 tons/year (equivalent to 200–250 trees). Operationally: Enhanced energy security (backup source during outages), 24/7 stability for casting, and reduced peak load. Strategically: Increased competitiveness in the EU market, support for national targets (32% RES by 2030), and conditions for regional growth (20% industrial progress). The result is financial sustainability, reduced carbon footprint, and positioning as a green SME. This project is a strategic investment in energy efficiency that transforms energy costs from a burden into an advantage. "Laki 131" Ltd. will achieve sustainability, innovation, and environmental responsibility, contributing to the green transition in Bulgarian metalworking.
None
