![](https://cannabis.net/drive/1000/3743_VBM4_solarpowercannabisgrowing.jpg?width=200&height=200)
As regards indoor cannabis cultivation, it is estimated that all equipment used in the cultivation of high-quality buds in a grow room of 3.5m3 will use approximately 13,000 kWh of electricity annually. Furthermore, the equipment used to cultivate healthy and happy cannabis plants produces so much CO2. To have a clear picture, cultivating a kilo of cannabis bud will give 4.3 tons of CO2.