Recently, some of the green dreamers of the University of Sussex from its SPRU (Science and Policy Research Unit) and IDS (Institute of Development Studies) launched an ambitious campaign named the Global Energy Movement. The GLOBAL ENERGY MOVEMENT (GEM) is a sociotechnical global movement that addresses the construction of a worldwide interconnected electrical super-grid mainly based upon only renewable resources. The fundamental idea of this campaign was proposed by Muhammad Talut from Bangladesh who is a student of Energy Policy at the University of Sussex and doing a feasibility study on a futuristic global renewable power grid.
In the line of sustainable socio-economic progress of human civilization on our beloved mother earth, to fight the climate change and environmental pollution, there is no alternative to the best use of renewable energy resources. Hopefully, with the rapid evolvement in energy technology concentrating on technical and economic efficiency, the renewable systems will triumph over the conventional ones by next thirty years. Then new challenges of energy distribution and resource allocation will arise in the energy arena since sustainable development will take sharp bends towards integrated global approaches. An interconnected Global Renewable Energy Grid can solve those issues. The campaigners found that the barriers to the deployment of this plan are not technological or economic, but rather social and geopolitical. This movement vows to construct such a network to provide incessant green energy from the diverse renewable resources around the world cutting down the necessity of expensive storage and wasteful energy curtailment.
One of the ardent constraints of harvesting green energy is the diverse localization of its abundance. Solar energy, being the king among renewable sources, is distributed around the globe so erratically and unevenly due to climatic variables that the average solar energy available for use after power purposes in a demarcated zone is not considered consistent and reliable enough yet. At night the sun is down, clouds often covers it up, at dawn and dusk the intensity is beyond usability. Only 3-4 solar hours are there for optimum use. The scenario is even disappointing in polar states where the sunlight is always dimmer than that of tropical, sub-Saharan or Arab regions. On the contrary in the places like deserts where insolation is abundant around the entire year, millions of acres of land permanently dried to barren and residence of no people. Only the available solar energy from five tiny dots on five deserts of earth can fill up the demand of 18 terawatts of total worldwide energy demand. But the problem is solar power is not intermittent, when one side of Erath is facing sun, the other is in dark. Therefore, a continuous global energy network is needed to be established to overcome the inconsistency of solar power originated from earth’s rotational motion. Things are to be working like a domino way; the regions will light up one after another with the rotation of earth! The spatio-temporal dispersion of renewable plants will smoothen the variability of energy flow from erratic resources to the most desired level and eradicate the reliability problem of such green power permanently. The wind power plants can contribute in the similar fashion. The submarine fibre optic internet cable network is a great evidence of global data transmission and communication made possible by human around the entire world connecting all the states. 160 years ago, we had a global network of telegraph transmission. In similar fashion, a global power web can be weaved too and thus energy can be transmitted intercontinentally through HVDC (High Voltage DC) technology. A tiny piece of sunny desert full of solar cells directly can light up a dark city apart from thousands of miles without any energy storage system. High Voltage DC (HVDC) power transmission has already been proved pragmatic and feasible for such kind of actions.
Direct or indirect, most of the global crises and conflicts are still arising actually from energy issues. In this nexus, Global Energy Network can be an essential tool to promote mankind brotherhood all over the world since it will establish an energy dependency among the nations to each other. No country will risk blackouts by jeopardizing diplomatic relations which indeed will promote the environment for global peace that the mankind always dreamt for. Global energy network is enough to be based on two green sources namely solar and the wind. Even though only solar seems more than enough, wind can be a reliable auxiliary backing against all odds. Considering all factors and parameters, this network is quite possible to realize within a decade or even less. Now, the only thing needed is a global movement in favour this noble objective. The campaigners welcome all the present and future political and technical leaders around the world to think over the matter for the sake of a greener and sustainable mother earth making it liveable for its children. They shouted, Let us get one for the greenest earth ever!