Quantity   Component name
4 × square aluminum bars 23.5x23.5 mm (thickness 1,5 mm) length 1 meter http://www.futurashop.it/tubo-quadrato-alluminio-23,5mm-1metro-8856-ALF25170?tracking=59edd5fa0038e
8 × angular joint for square aluminum tube 23.5x23.5 mm http://www.futurashop.it/giunto-angolare-tubo-quadrato-alluminio-23,5mm-8856-ALF28524?tracking=59edd5fa0038e
1 × solar charge controller http://www.futurashop.it/regolatore_di_carica_solareg10?tracking=59edd5fa0038e
1 × 120VDC power motor generators for wind turbines http://www.futurashop.it/motore-dinamo-120VDC-55w-2846-wgm55w?tracking=59edd5fa0038e
1 × 2 meters long PVC gutter channel with 125 mm diameter https://amzn.to/2XFZbhZ
1 × M8 threaded bar length 55 cm https://amzn.to/2ZxIZ4j
4 × Ball bearings 8x22x7 mm https://amzn.to/2XJflr8
4 × Flat Washer Internal Diameter M8 – 8 mm Outer Diameter 21 mm Thickness 1,6 mm https://amzn.to/2XK0mwP
1 × Battery 12 VDC 2 Ah or more https://www.futurashop.it/batteria-ricaricabile-fiamm-12-v-2-ah-5420-np21-12?tracking=59edd5fa0038e
1 × 100 W (or bigger) DC 12V to AC 220V modified sine wave Inverter http://www.futurashop.it/inverter-sinusoidale-modificata-300w-12vdc-220vac-USB-FR670M300?tracking=59edd5fa0038e