That results in an "adjusted adder" per energy from the energy storage system of US$20 USD/MWh * 3. Where P B = battery power capacity (kW), E B = battery energy storage capacity ($/kWh), and c i = constants specific to each future year. . The LCOE of battery storage systems meanwhile has halved in just two years, to a benchmark of US$150 per MWh for four-hour duration projects. news that below two-hours duration, batteries are. . Energy system of Chad In Chad, only 4% of the population has access to electricity. This goes hand-in-hand with low rates of access to basic services such as drinking water, basic. System Capacity: A 10kWh residential system averages $6,000-$8,000, whereas industrial-scale. . You know, Chad's capital N'Djamena currently faces chronic power shortages affecting 85% of its 1. With electricity demand growing at 7% annually [3], the city's aging diesel generators simply can't keep up. But here's the kicker – solar radiation levels here average 5. 40 % for high le 130GWh, a year-on-year growth rate of 170%.