Are power and cooling limiting your data center?
I just read a great whitepaper by Eaton, the power products manufacturer, called "Is power your weakest link in data center flexibility?" The whitepaper talks about how higher densities and larger power footprints are causing companies to outgrow their data center power. Power is a limiting factor in data center growth.
Cooling is close behind, because for every 1 kW of power required to run IT equipment, about 1 kW of cooling is required to remove the heat.
Eaton's modular power is a sensible approach to building an incremental power infrastructure in-house.
Colocation is a sensible alternative to eliminate the power and cooling problems. But all wholesale colocation providers are not created equal. The provider will need to allow room for growth, and provide usage based power billing. This approach providers for more granular, incremental growth in the costs of operating data center floor space, power and cooling.