Hi. I´m modeling an office building and I have a question about the electricity peak demand. When I include a water boiler that works with electricity in the HVAC system, the electricity peak demand for interior lighting and interior equipment is reduced by up to 90% during wintertime. It is good to point out that for these two loads I am working with constant schedules throughout the year. But when I change the fuel type of the boiler from electricity to natural gas, the problem is solved. Does anybody know why it happens? Because I need that the whole HVAC system to work with electricity. Thanks!