The global energy and environment challenges cannot be addressed through a local, regional, or even a national approach. They require a global outlook and a much broader vision, a Global Renewable Energy Grid [GREG]. 

Global Renewable Energy Grid

A high voltage direct current [HVDC] transmission system must be built to serve as the bulk electrical power transport medium, with centralized energy storage facilities placed within GREG as needed. And perhaps most importantly, the set of socio-political overseeing institutions from each of the world’s nations needs to network together and administer just as seamlessly as the physical grid.

After a brief overview of energy economics along with political obstacles, we offer technological suggestions as to how a global grid might be implemented.  HVDC transmission is recommended as a clear choice for most efficient and reliable long-distance delivery of electrical power 24/7/52.  And centralized storage mega-plants are proposed for balancing supply and demand across a network of mostly intermittent sources.

If we are to address the rapidly deteriorating climate due to fossil fuel power plants, then creation of a Global Renewable Energy Grid is critical enough to warrant our highest priority.  The United States, for example, invested judiciously in its interstate highway system starting in the 1950s. The rapid growth of the US economy, centered on road transportation after the second world war, can be directly attributed to this highway infrastructure.  Similarly, the “Dotcom” boom of the nineteen nineties can be directly linked to the wired and wireless global electronic highway.  Therefore, we need not wonder whether our economies can afford the GREG.  We must recognize that global economies would actually expand and get stronger because of it. 

Construction of any global, high-voltage, high-power grid [GREG] would require comprehensive analysis of its socio-economic benefits.  Increased electrical reliability and efficiency should be included as quantifiable advantages.  However, if we are to address the challenge of global warming and CO2 emissions, then the design alternatives should be evaluated in thermal and emission units, not in monetary units manipulated by a handful of bankers.  Since GREG would eventuallfy lower the energy costs for all nations, the projected cost of electricity to all consumers would substantially decline over the long term

Administration and Regulation

The most formidable obstacles to creating GREG lie in the socio-political realm.  But  corporations deeply invested in fossil fuel energy will oppose the change.  Top energy administrators must prioritize social responsability, not maximization of ROI, when planning the transition to renewables.  Policy makers will have to regulate based on long-term objectives, while acknowledging possible conflicts among regional operators, and between producers and consumers in the short-term.  Right-of-ways, electricity markets and pricing will be considered acknowledging the varied interests of producers, utilities, system operators and prosumers customers with their own wind and solar generators.

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