{ "power_radius_data":{ "source":"tpi2003cost", "length_unit":"meter", "power_unit":"MW", "data":[ {"radius":30, "power":1.4}, {"radius":50, "power":4.0}, {"radius":70, "power":7.6} ] }, "relative_energy_by_component":{ "source":"Lenzen2002339", "units":"percent", "data":[ {"Component":"Blades","Percent":8.7}, {"Component":"Hub and Mounting","Percent":6.5}, {"Component":"Transmission","Percent":9.7}, {"Component":"Generator","Percent":11.5}, {"Component":"Nacelle Cover","Percent":0.9}, {"Component":"Tower","Percent":43.6}, {"Component":"Foundation","Percent":9.8}, {"Component":"Electrical","Percent":9.4} ] }, "energy_intensity_by_component":{ "source":"Lenzen2002339", "units":"MJ/kg", "data":{ "Blades":61.8, "Hub and Mounting":36.8, "Transmission":36.8, "Generator":86.2, "Nacelle Cover":61.8, "Tower":36.8, "Foundation":3.2, "Electrical":86.2 } }, "relative_mass_by_component":{ "source":"Lenzen2002339", "units":"percent", "data":[ {"Component":"Blades","Percent":2.7}, {"Component":"Hub and Mounting","Percent":3.5}, {"Component":"Transmission","Percent":5.2}, {"Component":"Generator","Percent":2.6}, {"Component":"Nacelle Cover","Percent":0.3}, {"Component":"Tower","Percent":23.3}, {"Component":"Foundation","Percent":60.3}, {"Component":"Electrical","Percent":2.1} ] }, "relative_cost_by_component_EWEA":{ "source":"european2009economics", "units":"percent", "blade_length (meters)":45.3, "data":[ {"Component":"Tower","Percent":26.3}, {"Component":"Blades","Percent":22.2}, {"Component":"Power conversion","Percent":5.01}, {"Component":"Generator","Percent":3.44}, {"Component":"Hub","Percent":1.37}, {"Component":"Bearings","Percent":1.22}, {"Component":"Main shaft","Percent":1.91}, {"Component":"Main frame","Percent":2.8}, {"Component":"Yaw system","Percent":1.25}, {"Component":"Pitch system","Percent":2.66}, {"Component":"Transformer","Percent":3.59}, {"Component":"Brake system","Percent":1.32}, {"Component":"Nacelle housing","Percent":1.35}, {"Component":"Cables","Percent":0.96}, {"Component":"Screws","Percent":1.04}, {"Component":"Gearbox","Percent":12.91} ] }, "relative_cost_by_component":{ "source":"wilburn2011wind", "note":"Table 1, 2003 column", "units":"percent", "data":{ "Blades":16.6, "Hub":7.2, "Pitch drive":4, "Brakes":0.6, "Yaw drive":1.8, "Shafts":2.3, "Bearings":1.3, "Couplings":0.7, "Gear boxes":13.4, "Generators":6.7, "Case":1.9, "Frame":3.8, "Tower":20.6, "Tower foundation":5.4, "Controller":3.4, "Convertor":2.5, "Cooling system":0.3, "Sensors":0.8, "Power electronics":6.7 }, "mapping":{ "Blades":["Blades"], "Hub and Mounting":["Hub"], "Transmission":["Pitch drive","Brakes","Yaw drive","Shafts","Bearings","Couplings","Gear boxes"], "Generator":["Generators"], "Nacelle Cover":["Case","Frame"], "Tower":["Tower"], "Foundation":["Tower foundation"], "Electrical":["Controller","Convertor","Cooling system","Sensors","Power electronics"] } }, "manufacturing_labor":{ "comment":"From Sandia report: Cost Study for Large Wind Turbine Blades", "total_hours_30":450, "data":[ {"Category":"High Pressure Skin", "Power":2.66, "Percent_30":18.0}, {"Category":"Shipping", "Power":1.55, "Percent_30":1.1}, {"Category":"Low Pressure Skin", "Power":2.66, "Percent_30":18.0}, {"Category":"Root Stud", "Power":1.6, "Percent_30":3.3}, {"Category":"Assembly Prep", "Power":1.57, "Percent_30":4.9}, {"Category":"Finishing", "Power":1.28, "Percent_30":5.7}, {"Category":"Inspection", "Power":1.54, "Percent_30":4.1}, {"Category":"Leading Edge Shear Web", "Power":2.68, "Percent_30":12.3}, {"Category":"Material Kitting", "Power":2.42, "Percent_30":10.1}, {"Category":"Testing", "Power":0.87, "Percent_30":2.5}, {"Category":"Bonding", "Power":1.64, "Percent_30":7.9}, {"Category":"Trailing Edge Shear Web", "Power":2.68, "Percent_30":12.3} ] }, "blades":{ "comment":"From Sandia report: Cost Study for Large Wind Turbine Blades, blade radius, meters, rated power, MW, Cost breakdown for blade material, dollars", "blade_30":{ "radius":30, "power":1.4, "cost_by_material":{ "Fiberglass":7374, "Core":991, "Resin":2329, "Adhesive":674, "Root Studs":874 }, "mass_by_material":{ "Fiberglass":2523.00, "Core":190.00, "Resin":1252.00, "Adhesive":77.00, "Root Studs":66.00 }, "tool_area (m2)":148.4, "tool_cost (dollars)":239669, "tool_runs":400, "plant_throughput (blades/day)":6, "plant_floor_area (m2)":15329, "plant_cost_per_floor_area (dollars/year)":86.1 }, "blade_50":{ "radius":50, "power":4.0, "cost_by_material":{ "Fiberglass":33700, "Core":4828, "Resin":10785, "Adhesive":1660, "Root Studs":4550 }, "mass_by_material":{ "Fiberglass":11590.00, "Core":864.00, "Root Studs":414.00, "Resin":5800.00, "Adhesive":189.00 }, "tool_area (m2)":409.3, "tool_cost (dollars)":660883, "tool_runs":400, "plant_throughput (blades/day)":2, "plant_floor_area (m2)":21370, "plant_cost_per_floor_area (dollars/year)":86.1 }, "blade_70":{ "radius":70, "power":7.6, "cost_by_material":{ "Fiberglass":89530, "Core":14531, "Resin":28874, "Adhesive":3193, "Root Studs":12950 }, "mass_by_material":{ "Fiberglass":30857.00, "Core":2313.00, "Resin":15527.00, "Adhesive":363.00, "Root Studs":1177.00 }, "tool_area (m2)":826.9, "tool_cost (dollars)":1335166, "tool_runs":400, "plant_throughput (blades/day)":1, "plant_floor_area (m2)":28328, "plant_cost_per_floor_area (dollars/year)":86.1 } } }