We implemented sensegrow energy management system last year. We have been monitoring 390 energy meters over the web. The meters send data to sense grow energy management platform. You can then log in on the http://www.ioeye.com to view energy or managment reports. The best part of the system is that you can access it from any where. It supports almost any kind of energy meters. Has support for carbon emission calculations. The only thing i found missing was manging other fuels on their platform. But they are working on that and would be released soon.