A call to action for realizing smart distribution grids
Reliable, secure, and affordable energy is essential for continued economic development and prosperity. It underpins progress in agriculture, business, communications, education, healthcare, and transportation. Although our electricity power systems provide the basis for the energy that drives our economies, yet they face several critical challenges:
Increased economic development and changes to industrial processes demanding more electricity;
Strengthening the system to ensure resilience to extreme weather events;
Shifts in generation technologies and energy mix, requiring new regulatory, policy, and operational paradigms;
Facilitating new major load types, such as data centres powering AI;
Continuing to develop new safety protection systems;
Ensuring a skilled workforce to tackle these challenges; and
Meeting these needs in a just, inclusive, and affordable way.
Smart distribution networks are critical to achieving these goals, and the ISGAN Lighthouse Project Knowledge Hub provides a platform for sharing international experiences to reduce the risks associated with country-level action.
At COP28, the world committed to ambitious goals, including tripling renewable energy capacity by 2030, doubling the rate of energy efficiency improvements, and accelerating inclusive energy transitions. Modernising distribution grids and adopting smart grid technologies is central to achieving these targets, as they are vital for supporting the energy system transition. With the rapid growth of electrification and the increasing of renewable energy integration, the modernisation of low- and medium-voltage grids is no longer optional — it is imperative.
Extensive investment in smart grids is now recognised as far more urgent than previously anticipated. The International Energy Agency (IEA) estimates that global smart grid investments must nearly double to over USD 600 billion per year by 2030, emphasising the need to digitalise and upgrade thousands of local grids. Without coordinated action, the security, affordability, and quality of energy services could be compromised.
Severe weather events such as hurricanes, floods, and heatwaves, as well as growing cyber threats, require resilient grid infrastructure. Incorporating climate adaptation into smart grid planning is essential for long-term stability.
The scale of these challenges necessitates a departure from traditional planning methods. Uncertainties surrounding the integration of renewables, the evolution of technologies, and the impact of climate change highlight the need for adaptive, forward-looking strategies. Improving our approach to planning and modernising smart grids is crucial to ensuring resilience and efficiency as we work towards achieving our global energy transition goals.
Navigating uncertainties in the long-term planning of distributions grids
Uncertainty in long-term distribution grid planning poses a significant challenge to key actors such as policymakers, local governments, and distribution system operators. These uncertainties arise from ‘known unknowns’, such as the location of new renewable energy connections and new loads including heat-pumps and electric vehicles, and ‘unknown unknowns‘, like geopolitical shifts and the effects of climate change, including the frequency and impact of natural disasters.
Grid planning has traditionally always involved some level of uncertainty, but the scale and scope have grown significantly. The growing dependence on weather-dependent energy sources, such as wind and solar power, and the electrification of various sectors add an extra layer of unpredictability. For example, the timing and location of investments by households and businesses at the grid edge, as well as related consumption patterns, are becoming less predictable, which complicates the grid expansion process.
Exploring alternatives to traditional grid investments, such as demand- and production-side flexibility and smart grid technologies, is essential for cost-effective grid expansion. However, these solutions often fall outside the direct control of grid planners or depend on changes to the regulatory framework conditions and incentive structures, which introduces additional uncertainty. Moreover, the lengthy lead times for grid extensions exacerbate uncertainty further, as many factors can change between the planning stage and project completion.
Adding to the complexity is the involvement of more actors and stakeholders, each with different interests that could impact the grid. The evolving production mix and new types of loads mean that grid planners must anticipate and manage a wider range of scenarios, making forward-looking planning more challenging than ever.
Universal challenges, diverse regional realities
Countries worldwide face many shared challenges in the long-term planning and implementation of smart distribution grids due to rising uncertainty. Common concerns include integrating renewable energy sources, managing increased electrification, and adapting to evolving technologies and to climate change. However, these challenges manifest differently across regions, with varying levels of economic development providing very different starting points for grid modernisation efforts. While grid upgrades in wealthier nations may focus on enhancing existing infrastructure, developing countries may prioritise expanding access to electricity as an essential service to a growing population. Geographic and climatic differences further compound this variation in resources and priorities.
For example, urban areas may struggle to upgrade existing grids, while rural or mountainous regions face logistical issues extending infrastructure over vast or challenging terrain. Countries with abundant solar or wind resources face different integration challenges, while those with access to consistent hydropower can use it to balance variable loads. These regional differences necessitate bespoke approaches to grid modernisation that reflect regional strengths and limitations.
The mechanisms that provide access to and the reliability of the grids, as well as the regulatory environments, further shape these efforts. While some countries have well-established regulatory guidelines that incentivise the adoption of smart grid technologies, others lack the necessary frameworks to foster innovation or to apply agile, forward-looking planning processes. This creates uneven progress in grid modernisation.
Given these universal challenges and despite the diverse contexts, international knowledge exchange is crucial. Sharing insights and best practices enables countries to learn from each other and develop effective, tailored solutions to their specific challenges, accelerating the global transition to smarter, more resilient grids.
