  Developing countries often have access to limited energy resources, which
frequently results in power cuts and failures. During these power cuts,
enterprises rely on backup sources for power such as uninterruptible power
supplies (UPS) and electric generators. This paper proposes AnywareDC, an
architecture that builds on the recent work on Anyware to reduce energy
utilization in the presence of such intermittent power supplies. Anyware
reduces energy usage by providing enterprise users laptops instead of desktops,
while maintaining performance using a central compute cluster. Our basic
insight is that in the presence of power cuts, only the routers and the cluster
needs to be provided power: the laptops can continue to run on their own
batteries. This reduces both energy usage and UPS load allowing it to supply
power for longer, thus also saving generator fuel costs. Simulations show that
this architecture reduces energy usage by up to 80% compared to one not using
Anyware, and by up to 20% compared to Anyware.
