Bosch microwaves are of varying energy efficiency. As a leading brand in the home appliance market, Bosch does produce some good quality microwaves featuring a high energy efficiency.
The Bosch HMB 8050 reviews as being one of the most energy efficient microwaves on the market. However, as a brand overall, Bosch does not lead the market in energy efficiency in microwaves, as of 2015. When compared to the energy usage of a conventional oven, a microwave is usually a far more efficient option, using up to 80 percent less energy, and also being far more time efficient as a microwave does not require pre-heating.