Grid Reliability In The Clean Energy Transition

Reliability indices characterize the ability of the electrical system to supply customers with electricity as needed by measuring the frequency, duration, and scale of supply interruptions. While we would like to say that fusion energy is the answer to this issue, it is unlikely to have a meaningful impact in time, and it still doesn’t answer the actual issue of grid equipment unreliability. Utilities are exploring new technology and operational strategies to keep the electrical grid stable and dependable as demand grows and more renewable energy is integrated. The current rate at which we’re relying on fossil fuels to power our world is setting off alarm bells across the globe. It’s the job of the utility company to manage electricity supply, demand and transmission in a safe and sufficient way so end users can trust that their lights will turn on when they flip a switch.

The requirement for increased utility infrastructure is causing electricity prices to increase and forcing utilities to seek measures that would make data centers cover more of the risk in their investments. Additionally, governments and regulatory bodies may offer financial incentives for investments in infrastructure upgrades, DER integration, or resilience technologies. Regulatory https://dallasrentapart.com/a-new-unmanned-aerial-vehicle-was-created.html and policy frameworks play a crucial role in promoting power system reliability by mandating standards and incentivizing best practices.

And particularly when they include batteries, DERs can provide the very type of flexible and reactive power necessary to respond to rapid fluctuations in output from large-scale renewable energy generation. Resources that function as part of the distribution system are often called “distributed energy resources,” or DERs, and include, among others, rooftop-solar photovoltaic (PV) panels or backyard wind turbines; microgrids; storage; and demand response (each described in more detail below). By offering special compensation to fossil resources that are thought to be needed for reliability, grid operators guarantee the continued operation of certain fossil resources, and, in doing so, undermine state and federal climate policies. Yet rather than improve wholesale market rules, regulators and grid operators seem increasingly inclined to pick and choose the resources that are needed to keep the lights on and then ensure that those resources are able to recover their costs. In response, rather than fix the rules that create insufficient performance incentives, grid operators and regulators often opt to provide side payments to a predefined set of resources that are thought to be needed to keep the lights on. Often, utilities play outsized roles in these regional processes as well—including by reporting reliability conditions that justify their own preferred grid outcomes.46

of the U.S. Grid and Why Renewable Energy Can Help Keep the Lights On

In contrast to what some policies suggest, renewable resource deployment has not worsened reliability outcomes. Utilities in more than half of states do not conduct comprehensive integrated system planning that includes the distribution system. However, current data collection practices obscure which component(s) failed during an outage, making it difficult to align investments with the true drivers of customer interruptions.

Disconnection Data Is Finally Available. What Does It Tell Us?

Different reliability investments affect these components in different ways and come with very different costs, ranging from low-cost operational and maintenance measures to capital intensive infrastructure investments. Yet https://shipsbusiness.com/energy-efficiency-measures-ballast-water-management.html public policy is currently focused on rising energy demand, which does not address distribution system needs and extreme weather risks. Over the past decade, extreme weather and failures on the distribution system — the lower-voltage wires connecting homes and businesses to the bulk electric grid — have been the primary causes of customer outages nationwide. To that end, we decided to take a close look at the numbers to see if the data backs current strategies to enhance reliability. Our work is supported by philanthropy as well as partnerships, including fee-for-service engagements. We publish research like this to inform decision-makers and drive real-world impact.

• There is no reliability authority for natural gas pipelines, including intra- and inter-state pipelines.
• Regulatory and policy frameworks play a crucial role in promoting power system reliability by mandating standards and incentivizing best practices.
• Yet public policy is currently focused on rising energy demand, which does not address distribution system needs and extreme weather risks.
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A variety of power generation technologies contribute to a reliable grid.

As a result, it can take decades to finance, plan, and obtain permits for interstate electric transmission lines since companies must obtain regulatory approval from multiple states applying different regulatory standards and which have varying interests in favor of or against the project in question. States control the construction of most generation resources and dictate whether intra- or interstate transmission lines may be built by controlling the siting (location) of those lines.30 Yet FERC—working through RTOs—controls transmission planning and, in many regions, administers markets to incentivize generation capacity additions. Beyond inadequate jurisdictional authority, the many federal and state actors responsible for reliability are housed within distinct silos, both https://thecolumbianews.net/why-electric-boats-are-the-future-of-sustainable-boating.html horizontally (at the same level of government), and vertically (at different levels, such as state and federal authority). As suggested above in the introduction to grid governance, regulatory jurisdiction over the construction, operation, and pricing of the electric grid is significantly fractured—far more so than for other types of energy infrastructure. Altogether, this governance system—the product of accretive statutes, court decisions, and regulatory rulemakings over more than 100 years—has historically been largely successful in keeping the lights on. These include, for example, fuel production facilities (such as natural gas wells) and non-transmission line energy transport infrastructure (primarily railroads for coal and natural gas pipelines for gas).

Where does your state rank heading into 2026?

• Over the past decade, extreme weather and failures on the distribution system — the lower-voltage wires connecting homes and businesses to the bulk electric grid — have been the primary causes of customer outages nationwide.
• It is essential, then, that reliability policies for natural gas avoid expanding natural gas infrastructure where reliable zero-carbon energy would otherwise have been built.
• We have already demonstrated the ability of the grid to maintain reliable operation with high levels of variable renewable energy.
• In contrast to what some policies suggest, renewable resource deployment has not worsened reliability outcomes.
• U.S. power companies are charging more to cover investment in upgrading the grid and supporting increased demand from data centers, electric vehicles, and other electrification pushed by the Biden administration.
• From January to June, fossil fuels produced 55% of the nation’s electricity, down from 56%, with nuclear power and renewable energy, including hydropower, producing the rest.

Microgrids are small-scale versions of a larger electrical grid that generate local energy directly to a community or group of users. The power grid typically comes to public attention when there are large-scale failures, like outages caused by a storm. As more states begin to use higher percentages of power from renewable projects, there’s no doubt storage will play an important role. Renewables and storage technologies hold a potential solution for grid reliability.

Modest Reforms to Ameliorate Coordination among Silos

• This white paper argues that the primary threat to grid reliability is not the changing energy mix but rather failures in grid governance.
• These include broader federal jurisdiction and increased coordination among all reliability actors; the infusion of more public oversight in grid governance; and substantive changes to the rules that govern transmission planning, electricity markets, and demand-side solutions.
• New Energy Innovation research walks through the basics of grid reliability and explains why clean energy helps keep the lights on.
• In these areas, transmission operators called “regional transmission organizations” (RTOs) or “independent system operators” (ISOs) have operational control of the transmission grid, although individual utilities maintain physical ownership of the wires.
• Wind and solar resources tend to be maximized due to their inexpensive operating costs ($0 fuel costs).
• As we discuss further in Part V, FERC has more authority than it has yet used to control how distributed energy resources—including storage, microgrids, demand response, and small-scale renewables—interface with wholesale markets and interstate transmission.

New Energy Innovation research walks through the basics of grid reliability and explains why clean energy helps keep the lights on. To ensure the highest level of privacy while still allowing central operators to manage the generation of distributed resources to improve grid reliability, Liu’s team will develop and implement cryptology-based and non-cryptology-based privacy-preserving methods. Existing distributed frameworks have yet to address scalability issues resulting from the growing number and diversity of distributed renewable resources like rooftop and community solar panels, electric vehicles, smart thermostats. Now more than ever, a highly scalable, resilient power system that can minimize the operational challenges of renewable generation is needed to meet the nation’s grid decarbonization goals. Ramping traditional power plants up and down to offset renewable energy is costly and inefficient, and grid operators will increasingly have to manage oversupply as renewable generation increases.

Examples include replacing overhead lines with underground cables, reinforcing poles and towers, and elevating or waterproofing substations in flood-prone areas. Smart grid technologies enhance reliability by integrating advanced communication, sensing, and automation across the power system. Redundant lines, transformers, and backup generators allow the system to reroute power or increase generation when a component fails, significantly improving reliability and operational flexibility. Additionally, technologies like Fault Location, Isolation, and Service Restoration (FLISR) automate the restoration process, significantly reducing outage durations and affected areas. Adaptive protection systems adjust their settings in real-time based on changing grid conditions, maintaining effectiveness across varying operating scenarios. The cost of improvements is also high, so in practice a balance is sought to reach an “adequate level of reliability” at an acceptable cost.

Moreover, those utilities that own generation may have incentives not to construct transmission lines that would lower the power prices the utility receives in constrained areas. Membership, in turn, is largely comprised of industry insiders, most of whom have strong financial interests in the outcomes of changes in RTO tariffs and operating agreements and NERC standards. While FERC supervises these entities, it does so under relatively deferential standards of review.42 This largely privatized model of grid governance presents particular challenges for managing reliability under changing circumstances. For example, efforts to expand natural gas pipelines solely for reliability should be viewed skeptically, as batteries, microgrids, or other resources, rather than gas, can often fill reliability gaps. It is essential, then, that reliability policies for natural gas avoid expanding natural gas infrastructure where reliable zero-carbon energy would otherwise have been built. A broader reliability authority, however, is necessary to address the many potential failures of natural gas pipelines that can reduce gas supply to power plants, including, for example, freezing equipment on pipelines.