Executive Summary: This review examines the initial SPP CPP implementation to provide assessment of the aspects that can be transferable to other planning regions. The review provides areas where the CPP is transferable with the Flex and Invest approach and should be able to be universally...

KEY FEATURES -Regional curtailment -Thermal generator outages -Price maps -Non-RTO region data -Emissions information -Real-time clean energy records...

KEY FEATURES / USED IN - Capacity expansion & production cost modeling - Resource adequacy modeling - Public load, resource & transmission data - Western US 2026 RA case study - Eastern Interconnection RA analysis...

KEY FEATURES -Record of all WesTTrans paths -Forward-looking TTC & long-term firm ATC -Market price points, 3-year periods -25 key Western transmission paths...

This slidedeck presents results from a study that seeks to understand the linkage between transmission deliverability and resource adequacy. The collaboration between GridLab and Telos Energy was motivated by the need to answer a critical question: Do current rules for interconnecting power plants to the...

This fact sheet summarizes results from a study that seeks to understand the linkage between transmission deliverability and resource adequacy. The collaboration between GridLab and Telos Energy was motivated by the need to answer a critical question: Do current rules for interconnecting power plants to...

ERCOT’s energy-only market traces back to the 1990s, beginning with wholesale competition furthered by Senate Bill 7 in 1999 which unbundled much of the investor-owned utility sector ahead of retail choice in 2002...

As utilities across the country rush to build new gas power plants to meet surging electricity demand from data centers, a new report from Current Energy Group (CEG) and GridLab reveals that the price tags regulators are approving systematically understate what customers will actually pay...

This paper compares California’s investor owned utilities’ electricity distribution and transmission costs with peer utilities in the US to understand whether California’s costs are higher on a unitized basis, and if so, how long that trend has been present...

This paper examines the history of electricity rate and cost changes in California over the last 25 years. It aims to support a broader conversation on solutions that stabilize and reduce electricity costs and rates in the state...

While recent industry projections suggest rapid growth in electricity demand from data centers and AI, historical context and current data point to a more complex reality...

The energy industry faces an urgent challenge: unprecedented demand growth from data centers, electrification, and re-shoring is colliding with multi-year delays in bringing new supply online. This creates a fundamental tension between the speed at which we need new capacity and the energy affordability customers...

While Battery Energy Storage System (BESS) deployment is increasing across the U.S., growth remains concentrated in California and Texas. This report examines why Eastern markets, including PJM, MISO, and SPP, have not kept pace, identifying key regulatory and market design barriers such as interconnection delays...

This collaboration between GridLAB and GridCo Partners offers a strategic reference for stakeholders to support alignment between technical standards and emerging grid‑modernization requirements...

This collaboration between GridLab and Sylvan Energy Analytics examines Phase 1 of a recent resource adequacy study conducted by E3 on behalf of electric utilities in the Pacific Northwest and provides an independent analysis of winter resource adequacy risks based on the weather and hydro...

This report provides a comprehensive assessment of IEEE Standards relevant to electric distribution systems, identifying gaps and opportunities for future IEEE activities...

Large loads present many unique challenges to electric power systems. Primary among them is the size of these loads. In its work across multiple states, EFG sees integrated resource plans (“IRPs”) or IRP related filings with levels of load growth that will double, triple...

GridLab appreciates this opportunity to provide input on the U.S. Department of Energy’s (DOE) Accelerating Speed to Power Request for Information. GridLab is a non-profit, non-partisan, 501(c)(3) focused on identifying and overcoming the technical barriers to energy infrastructure deployment. GridLab applauds the DOE’s effort to...

The State of Hawaii faces a critical decision regarding its energy infrastructure to meet the 100% Renewable Portfolio Standard (RPS) by 2045. This working paper evaluates the proposal to utilize Liquefied Natural Gas (LNG) as a transitional fuel for power generation on Oahu, specifically analyzing...

A GridLab commissioned analysis executed by Aurora Energy Research estimates that had just a fraction (10%) of the land-based renewable and battery storage projects in PJM's existing interconnection queue been built in time for the 2026/27 delivery year...

Through a collaboration with RMI, Tata Power, National Renewable Energy Laboratory (NREL), Electric Power Research Institute, and Vaisala, GridLab is developing datasets and tools that can support power system planning for India. This Q&A document provides answers to technical questions regarding the weather and renewable...

This fact sheet provides critical insights from a study that evaluated data center flexibility in the context of resource adequacy planning using NV Energy as a case study...

This slidedeck summarizes a study that explores how data center flexibility could be brought into resource adequacy planning. NV Energy is used as a case study to demonstrate the proposed approach...

The capital costs for new gas combustion turbine (CT) and combined cycle gas turbine (CCGT) power plants in the United States have increased significantly in recent years. While anecdotes of these higher costs are becoming more common, the specific data isoften difficult to access. Much...

Through a collaboration with RMI, Tata Power, National Renewable Energy Laboratory (NREL), Electric Power Research Institute, and Vaisala, GridLab is developing datasets and tools that can support power system planning for India...

Smarter deployment of home batteries, electric vehicle chargers, and smart thermostats can help avoid costly grid upgrades up to $13.7 billion in savings for California. The study identified that strategically harnessing distributed energy resources to meet the state’s goal of 3.5 GW of load shift...

Transmission expansion can unlock new lower cost generation, increase system reliability, and reduce pollution. For this reason, it is important for energy advocates of all types to understand and engage in their region’s transmission planning process...

In 2024, Energy Strategies, in partnership with GridWorks and GridLab, completed the Connected West study, an unprecedented long-term western US transmission plan based on high load growth and high energy system decarbonization. One of the scenarios tested in this study was a strategy based on...

To face this pivotal moment in our energy history energy system planners and regulators need to better synthesize the worlds of electric generation and transmission. This report, "Right-Sizing Future Electric Transmission Systems," highlights that while unprecedented expansion will be necessary to increase reliability, maintain affordability...

In this collaboration between GridLab and Telos Energy, we evaluated resource adequacy across the Eastern Interconnection using the open-source modeling platform, GridPath, and publicly available datasets. With a near-term study year of 2028, we analyzed the role of interregional transmission in mitigating loss of load...

This fact sheet provides critical insights from a study that evaluated resource adequacy across the Eastern Interconnection using the open-source modeling platform, GridPath. With a near-term study year of 2028, we analyzed the role of interregional transmission in mitigating loss of load risk across diverse...

This report provides a novel methodology for planning regional transmission system upgrades using advanced conductors (ACs) and evaluates their impact on the Bonneville Power Administration (BPA) transmission system's reliability and stability. The study highlights that reconductoring existing lines with ACs offers a cost-effective and time-saving...

These slides were presented by Derek Stenclik and Sam Hostetter of Telos Energy at a webinar hosted by the Energy Systems Integration Group on July 1 2025. The material is based on a study in which resource adequacy across the Eastern Interconnection was evaluated for...

This slidedeck summarizes a study conducted by Telos Energy in which we evaluated resource adequacy across the Eastern Interconnection using the open-source modeling platform, GridPath, and publicly available datasets. With a near-term study year of 2028, we analyzed the role of interregional transmission in mitigating...

The practice of requiring long-term firm point-to-point transmission rights for new generators in the Pacific Northwest traditionally supported reliability for utilities that rely on BPA transmission, but has not adapted well to an environment with increasing penetrations of renewable resources. This paper describes reforms to...

Grid-Forming (GFM) Inverters GFM have received a lot of attention recently in power system organizations including NERC. The technology promises to address many of the stability issues facing the transmission system as the resource mix moves from spinning assets to inverter based resources. However...

This report describes the transmission system reliability risks associated with the retirement of synchronous generators, such as coal and natural gas plants, and the shift towards inverter-based resources like solar PV and battery energy storage systems (BESS). It highlights the essential reliability services provided by...

This report provides an outline of the current state of Large Load interconnections including data centers. It includes recommended questions for regulators and utilities to develop more robust interconnection processes. It also provides template data collection forms that can be used when requesting data from...

Surplus interconnection refers to the practice of allowing new electricity supply resources to connect to the grid using the same interconnection rights that have already been allocated to existing generators.7 As outlined in the Surplus Interconnection Technical Whitepaper, hundreds of gigawatts (GW) of power plants...

The U.S. electric grid is facing a triple threat of rising rates, rapid demand growth, and increasing reliability risks. These issues have wide ranging impacts on the future of America’s economic growth, industrial competitiveness, and national defense. Meanwhile, there remain challenges to quickly bring enough...

The power grid has emerged as the primary bottleneck to meeting growing electricity demand with low-cost clean energy. Demand for electricity—and especially clean electricity—has soared, driven by electrification in various sectors, the rise of data centers for artificial intelligence (AI), and booming investment in clean...

MANAGING GRID RELIABILITY IN A CHANGING WORLD Summers and winters are introducing new grid reliability risks in the form of extreme heat and cold, both exacerbated by the climate crisis.12 Heat waves cause people and businesses to crank their air conditioners for relief, spiking electricity demand...

How much solar power capacity is available in the wholesale power market managed by the California Independent System Operator? According to the California Independent System Operator (CAISO) as of 11/07/2024 there were 19,853 megawatts (MW) of solar generation connected to the CAISO grid. As of...

Capacity expansion models are the primary method for developing resource portfolios in electricity planning exercises, including integrated resource plans and transmission plans. These models are complex and imperfect, primarily because investments in the electricity...

Capacity expansion modeling is a crucial part of power system planning. It’s the foundation of the utility’s IRP, setting a roadmap for net investments, retirements, and meeting policy goals of renewable energy production or emissions reductions. It also serves a central role for deregulated markets...

Power system planning has grown in both importance and challenges in recent years. In parallel with rapid integration of variable renewable energy sources and storage, the electric industry is facing rising load growth, evolving weather and natural disaster risks, and increasing operational complexity...

One of the pressing challenges of the clean energy transition is that getting needed new sources of electricity supply are being stymied by a combination of multi-year delays in the interconnection study process, supply chain constraints, and siting and permitting challenges...

Connected West is a 20-year transmission planning study aimed at forecasting long-range transmission infrastructure needs of the Western grid required to support a highly decarbonized and electrified economy. The study focuses on identifying “next generation” transmission investments, targeting the identification of portfolios of new transmission...

In this latest installment, the Center for Energy Efficiency and Renewable Technologies (CEERT) provides a review of California’s transmission planning, interconnection, and permitting processes so far in 2024. This report focuses on recent California...

The primary objective of the Montana resource adequacy (RA) assessment is to identify capacity needs for NorthWestern Energy (NWE) in the next 5-7 years given resource plan uncertainties and evolving coordination opportunities through the Western Resource Adequacy Program (WRAP). NWE is currently one of 22...