Seattle-based Calico Energy Services, which provides smart grid data management products for the utility and power industry, reported today that it has partnered with Digi International, a provider of gateways used for IP-based monitoring of home energy devices. According to the two, they have created an integrated smart grid solution for energy and demand management. Digi's hardware connects to Zigbee modules and other products in the home energy market. Calico Energy's software is used to manage demand side management and energy data collection for the power industry. Power utilities use demand side management programs to offload power demand by shutting down customer equipment, avoiding the need to boot up additional power plants and capacity. In exchange, those customers get better rates and incentives.