[witrak]

Article in the second statement refers to the efficiency of natural plants' way of food production: "This process, however, is very inefficient, with only about 1% of the energy found in sunlight ending up in the plant." So comparing it to the current efficiency of photovoltaic sources of energy (up to 50% https://www.eia.gov/energyexplained/solar/photovoltaics-and-...) and allowing for a lot of losses of energy in the whole process it is still not unexpected to have a couple of times better effectiveness than of natural process. It's worth reading a bit more than the header...