{ "pv":{ "loss": 0.98, "cost_per_kW": 200, "lifetime": 15 }, "ess":{ "loss": 0.98, "cost_per_kW": 300, "lifetime": 8 }, "grid":{ "loss": 0.98, "sell_price": 0.2 , "capacity": 5000 }, "pv_capacities":{ "begin": 10000, "end": 50000, "groups": 3 }, "ess_capacities":{ "begin": 10000, "end": 50000, "groups": 3 }, "time_interval":{ "numerator": 15, "denominator": 60 } }