What’s the conversion efficiency, ie kCal of food per kWh of electricity? (This can, of course, be expressed as a dimensionless number since both numerator and

What’s the conversion efficiency, ie kCal of food per kWh of electricity? (This can, of course, be expressed as a dimensionless number since both numerator and denominator are in units of energy.) Also, how does this efficiency compare in absolute, quantitative terms to competing solutions like Calysta FeedKind?