5 problems the internet of energy can solve
Two technological revolutions are shaping the dawn of the 21st century: the development of the internet and the shift towards a carbon-free global energy system. The latter received a boost in 2015, when the Group of Seven (G7) countries pledged to phase out fossil fuels by 2100. With the advent of the internet of things, these two revolutions are rapidly converging and ultimately will result in an "internet of energy."
Decarbonization, decentralization and digitization are transforming the energy sector. These three global trends are changing the way we produce, distribute and consume power. As a result, the conventional energy landscape — with a few large power plants — is disappearing. Our accelerating shift towards renewables requires a completely new systemic approach. Millions of small generating units are being added to the energy system, such as wind turbines and solar systems. They must be organized and managed for maximum efficiency. Moreover, there is a new class of "prosumers" — those who produce and consume as well as sell and buy electricity.
In this decentralized system, innovative networking technologies will become increasingly important. Here are five reasons why we need to transform our old grids into an internet of energy:
1. Soaring global demand for clean energy
More than 1 billion people live without access to electricity, according to a report from the United Nations initiative Sustainable Energy for All. This particularly affects sub-Saharan countries that are experiencing rapid population growth. Universal access to electricity is both morally imperative and economically necessary, but it poses a dilemma. What would happen if the rest of the world were to consume energy at the rate of developed countries?
After all, the global population is projected to increase by nearly 2 billion people by 2040, according to U.N. estimates. This growth primarily will take place in developing countries. What would be the impact on our environment if roughly half of the power consumed by this growing population were generated by fossil fuels? Certainly the world’s climate goals would be at risk, particularly the objective of limiting global warming to a maximum of 2 degrees Celsius.
We are already seeing a similar trend in the transportation sector. Traffic-related emissions are about 60 percent higher today than they were in 1990. This is mainly due to the dramatic increase in the number of vehicles in developing countries. In China alone, that number more than quadrupled within the last decade to roughly 200 million.
Demand for electricity is also growing worldwide. Experts expect an 80 percent rise in global electricity generation by 2040. This is not just a matter of pent-up demand in developing countries. The spread of computers, phones and other devices in industrialized countries is also fueling demand for electricity.
Clearly, the solution to this dilemma is to generate power from renewable energy sources in a way that is as climate-neutral as possible. But this radical shift presents us with tremendous technical challenges that require an entirely new way of managing our energy system.
2. Centralized grids are no longer adequate
As our energy system grows more complex, the old, centralized grid is struggling to keep up. This problem will worsen as more decentralized units, such as solar panels, are integrated into the system.
For example, the German power grid is considered a role model for industrialized countries, with nearly 100 percent availability. However, the energy transition towards renewables already has affected it considerably. In recent years there has been a massive increase in the number of times network operators have had to intervene to stabilize the grid.
European grid operator TenneT said that it had to spend almost 1 billion euros in 2017 on emergency interventions to stabilize its power network, due largely to fluctuations caused by increasing amounts of renewables added to the grid. Consumers end up paying for these interventions via charges on their electric bills.
3. Smarter grids ensure a more reliable supply
To manage a more complex energy system, we need to make power grids smarter. By using digital technology, the smart grids of the future will connect individual producers and consumers to form an internet of energy that ensures a reliable, stable power supply.
The fragmentation of our energy supply means that systems and boundaries that were once fixed, such as the walls between public utilities and consumers, are breaking down. Instead, there are new networks of producers and consumers, and completely new business models for buying and selling energy. These changes have led to many ideas for a convergence of industries, technologies, value chains and commercial processes.
Digitization also can increase the competitiveness of renewable energies. In Germany, for example, contracts recently were awarded to the first large offshore wind farms to be completely financed by the market price for electricity, without any public funding. This was possible only thanks to efficiency gains through digitization.
Digitization drives efficiency. Efficiency drives competitiveness. And competitive renewables help combat climate change.
4. Dealing with mountains of data
Our increasingly complex, decentralized energy landscape is generating huge volumes of data. To see how this is changing, we can look to the jump in the number of networked devices.
In 2003, about 500 million devices were connected to the internet. The number of connected devices has grown quickly and is widely expected to continue at a swift pace.
Gartner predicts the number of connected devices will jump to more than 20.4 billion, from 8.4 billion in 2017. Ericsson has a different way of counting, but expects growth at a similar scale. The company sees connected devices increasing to more than 25 billion in 2020 and to 29 billion in 2022, from more than 17 billion in 2017.
The overall volume of data is also growing quickly. The global datasphere is likely to grow to 163 zettabytes by 2025 (PDF), about 10 times the 16.1 zettabytes generated in 2016, according to market research firm IDC. (One zettabyte is equal to 1 trillion gigabytes.)
A major challenge is how to use this data to improve our systems.
5. Artificial Intelligence and quantum computing are transforming the energy sector
We can’t meaningfully exploit these huge amounts of data with conventional technologies. The industry must instead look to technologies that were still within the realm of science fiction only a few years ago, such as artificial intelligence. In fact, artificial intelligence is already starting to transform the energy sector in all kinds of ways. For example, Siemens uses AI to manage and maintain gas turbines.
Artificial intelligence in the form of machine algorithms has helped achieve longer service intervals for these gas turbines. Algorithms automatically analyze operating data, environmental conditions and component properties better than human experts could.
Quantum computing is another groundbreaking technology that the sector is already exploring intensively. These computers rely on operating principles that are based on the properties of quantum theory. Quantum computers directly use subatomic particles and harness their quantum properties for data storage and data processing. This world made up of the tiniest of particles will help us solve the problems of the big world around us.
We will need these new technologies as we shift towards cleaner energy, and as the global population expands and demand for electricity soars.
An internet of energy for all
As the history of the internet has shown, every new participant in a network increases the possibilities and opportunities for the overall system. The same goes for the energy system. Its value grows when a simple power grid evolves into a comprehensive energy network.
In such a network, surplus electricity from one source can provide the basis for generating other forms of energy in another sector. When electricity is converted into heat or used to extract heat, when it serves as the basis for providing mobility, or when it is employed to produce hydrogen or methane, completely new and flexible sources of energy become available.
Networking technologies will gain new meaning in this process of transformation. Rather than simply transmitting and distributing electricity, the power grid will develop into a new, world-changing network: the internet of energy.
This article has been edited from the original version to include two recent forecasts by Gartner and Ericsson about the number of internet-connected devices.