In this context, it is almost disappointing that the UN’s Sustainable Development Goal 7 calls on us only to “by 2030, increase substantially the share of renewable energy in the global energy mix.” This “substantial increase” is already on its way and inevitable. The question for planet and humanity alike is whether this transformation will deliver energy access to all - and whether the switch to 100% renewable energy will be fast enough to prevent dangerous climate change.
Renewable energy can certainly meet the world’s energy needs. The Intergovernmental Panel on Climate Change recently confirmed that the technical potential is much higher than global energy demand. Many countries, such as Denmark, but also communities, regions, and megacities are already committed to making 100% renewables a reality.
Sydney, the most populated city in Australia, will switch to 100% renewable energy in electricity, heating, and cooling by 2030. Reykjavik has achieved a similar goal already. Even leading businesses like Ikea, Mars, Philips, or Swiss Re are campaigning to ensure that by 2020, 100 of the world's largest companies will run on 100% renewable power.
Dharnai, a solar-powered village in India, has shown how we can make this renewables boom deliver for all - including the rural poor. Dharnai is located in Bihar, one of the poorest provinces in India. The village faces extreme poverty, deep caste divisions, and very high illiteracy rates. But life in Dharnai has been transformed in the 10 months since an affordable solar energy grid arrived. Dharnai is the first village in India where all aspects of life are powered by solar. The 100 kilowatt (kW) system powers the 450 homes of the 2,400 residents, 50 commercial operations, two schools, a training center, and a health care facility. A battery backup ensures power is available around the clock.
Solar-powered lighting means children can now go out and play after school and finish their homework after sunset. Women feel safer venturing out after dark. The arrival of solar water pumps has brought new hope to many farmers for improving access to fresh water resources. With solar energy, more villagers have further been able to recharge their mobile phones regularly, so the solar grid has also opened up Dharnai to the world of the internet.
This is just the beginning. Improvements in the quality of life of Dharnai's residents have become the talk of neighboring villages that are eager to understand and replicate the Dharnai model. India has 80,000 villages that still need solar micro-grids.
And the story of Dharnai goes well beyond India. Hundreds of millions of people worldwide live without electricity. For them, the Dharnai solar-powered micro-grid could be a game-changer, a model for bringing clean reliable energy to all.
The switch to renewables can deliver for people in industrialized countries as well. For example, while Greece’s debt crisis has received worldwide attention, few are aware that energy poverty is one of the most dramatic symptoms of the Greek recession: six out of every 10 households are struggling to pay their energy bills.
From Dharnai to Greece, there is no question that all over the world, people and the planet will benefit if Sustainable Development Goal 7 is implemented in a truly ambitious manner. The world of energy is transforming fast and a real energy revolution is within our grasp. Governments must follow up the many fine words that will be spoken at the UN Sustainable Development Summit with actions that put our world on the path to 100% renewables by 2050.