Since we are growing indoors and not under the sun we need to use artificial lighting to make our crops grow strong and beautiful. However the very same condition, that we are growing indoors and that we are able to fully control the farm environment, also makes us able to grow a lot more efficiently than traditional outdoor farms.
So yes, at the moment we do use more electricity to power our lights than what is needed out on the fields. But the fact that we grow in Sweden enables us to almost entirely rely on renewable energy, and we reuse the excess heat to warm up the surrounding building which makes the overall energy use more efficient.
Also the techniques we use in the industry develop by the day, and to us that is an indicator that we’ve only seen the beginning of efficiency improvements - which hopefully will lead to significant decrease of electricity used per kilo of greens.