DULUTH, MN (KDAL) - Minnesota Power has announced a newly updated "Solar Sense" program that makes solar energy more affordable to residential and commercial customers while promoting Minnesota manufacturers. Rebates and incentives include rewarding customers who choose solar products, equipment and systems manufactured in Minnesota, offers bonus rebates to customers with a proven history of energy efficiency and recognizes non-profit customers with higher rebates for community renewable energy projects. The 22nd Annual Energy Design Conference and Expo is being held Tuesday and Wednesday at the DECC in Dululth.