Refer to the input text as context and select the correct relationship between 'Manitoba Hydro' and 'electricity' from the available options.
Options: member of, headquarters location, product/material produced, distributed by

The business of hydro: Premier Greg Selinger and Manitoba Hydro interim president Darren Rainkie announced today that SaskPower will buy a minimum of 100 megawatts of electricity from Manitoba beginning in 2020.
product/material produced