As Boston building owners look to electrify their properties to comply with the state and city’s 2050 net-zero mandates, electrification is becoming a bigger roadblock than some anticipated. Massachusetts has some of the most ambitious sustainability goals in the country, and owners are racing to electrify buildings or buy credits to avoid penalties and fees. This heightened electricity demand is straining the grid and leading to higher costs across the board. Owners and sustainability experts who spoke at Bisnow's Boston Energy and Sustainability Summit on Wednesday said these costs are adding up, and with less federal help, it is hard to make building retrofit projects...