Not long ago I heard a shocking radio advertisement from the US Department of Energy and the Ad Council.

FORBES: A Revealing Ad Exposes The Department Of Energy's Hypocrisy

Some of the biggies include The BBC, Visa (NYSE: V), Cisco (Nasdaq: CSCO) and even the US Department of Energy.

FORBES: Splunk: Patience Can Make Billions

The bulb triumphed in the Bright Tomorrow competition run by the US Department of Energy that aimed to find an energy efficient alternative to the 60-watt incandescent light bulb.

BBC: Philips LED bulb

The US Department of Energy has underwritten more than a dozen demonstration projects using superconducting magnets, cables and wires, all directed towards more efficient and compact generation and use of electricity.

BBC: Last Updated: Monday, 5 March 2007, 08:38 GMT

Sandy-related power cuts were still affecting some 2.5 million customers in the US early on Saturday, according to the US Department of Energy's Office of Electricity Delivery and Energy Reliability, quoted by Reuters.

BBC: Storm Sandy: Power and petrol shortages dog recovery

The US Department of the Interior, the Department of Energy (DOE), and the US Army Corps of Engineers are quietly laying the groundwork for a renewable energy boom that you might not expect.

FORBES: Administration Lays the Groundwork for Hydropower Boom

They might also be reading documents from the International Monetary Fund, the US Energy Department, the OECD (the richer country's economic club) or from the UK Department of Energy and Climate Change (DECC), with its Fossil Fuel Price Projections.

BBC: Scottish independence: 'A tilt to the upside'

By US Department of Energy estimates, tribal lands hold solar energy potential equivalent to 4.5 times the national electricity consumption.

FORBES: Obama Administration Aims To Clear Roadblocks To Tribal Renewable Energy