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The briefing challenges three myths regarding the role of renewables and distributed energy resources (DERs) in Puerto Rico's grid recovery. It asserts that renewables and energy storage are now cost-competitive with fossil fuels, with energy storage costs dropping 70 percent between 2010 and 2016. The text highlights that renewable infrastructure proved more durable than transmission networks during the 2017 hurricanes, noting that 90 percent of utility-scale solar and wind capacity remained operational or ready. Furthermore, it argues that these technologies can be deployed quickly, citing examples of large-scale storage projects completed in months, and recommends a coordinated effort by the Puerto Rico government and utility to prioritize these projects for a more resilient energy future.

The document argues that emerging energy technologies—including solar PV, wind, battery storage, and microgrids—are now cost-competitive and more resilient than traditional fossil-fuel-based systems. It highlights that while the 2017 hurricanes caused the longest sustained outage in U.S. history, the resulting damage provides an opportunity to rebuild the grid using distributed resources that can be deployed quickly and reduce reliance on expensive imported fuels.

The document argues that 'business-as-usual' energy solutions fail the poorest populations, particularly women and those in rural Sub-Saharan Africa and Asia. It proposes two primary pathways for acceleration: integrating energy services into social protection safety nets and empowering women as entrepreneurs within the energy value chain. The paper highlights the role of digitalization and mobile money in improving targeting and financial inclusion, while noting significant gaps in evidence and funding for decentralized energy projects compared to general subsidies.

This guide explains the role of electric utilities and Public Utilities Commissions in US energy policy, while detailing specific mechanisms like distributed generation, community solar, net metering, and decoupling that facilitate the transition to renewable energy.

The document argues that the traditional cost-of-service regulation (COSR) model creates a capital bias that hinders the integration of distributed energy resources (DERs). To transition utilities into distribution system optimizers (DSOs), the author proposes integrated distribution planning (IDP) to reveal the locational value of DERs. Two regulatory pathways are examined: an information-intensive approach that separates the DSO function from asset ownership to create competitive markets, and an outcome-focused approach using performance-based regulation (PBR) to align utility profits with system optimization and public policy goals.

The document examines the challenges RTOs face as the U.S. grid shifts from large central generators to variable renewables and distributed energy resources (DERs). It argues that 'flexibility'—the ability to respond to changes in supply and demand across various timeframes—is essential for reliability and cost minimization. The authors recommend eliminating self-scheduling for all generators and imports, preserving negative pricing, and improving the coordination between natural gas and electricity markets. It also suggests creating technology-neutral products that value specific capabilities, such as ramping and frequency response, and highlights successful examples like MISO's Dispatchable Intermittent Resource category and CAISO's Flexi-Ramp product.

The document analyzes the challenges that high levels of variable renewable energy (VRE) pose to current restructured wholesale electricity markets, specifically regarding the erosion of the price-duration curve's central gradient used for long-term cost recovery. It proposes two future market paths: one continuing to rely on spot markets enhanced by demand elasticity and storage, and another 'bifurcated' model that separates a long-term 'firm market' for capital-heavy assets from a residual spot market for real-time balancing.

The policy brief analyzes the decentralized solar market in Brazil, finding that consumer uptake is driven primarily by demand-side factors rather than natural resource availability. Analysis of 5,563 municipalities reveals that areas with higher GDP, larger populations, and higher electricity tariffs have more photovoltaic units, while regions with the highest solar potential, such as the Center and Northeast, have lower adoption rates. The authors recommend that climate risk mitigation policies address these demand-side barriers to encourage solar penetration in the poorest regions with the highest solar potential.

The research finds that demand-side factors are the primary drivers of distributed solar PV adoption in Brazil, often outweighing the availability of solar resources. Analysis shows that municipalities with higher GDP, larger populations, and higher electricity tariffs have more PV units, while solar radiation only becomes a significant positive predictor when comparing municipalities within the same electricity distributor's concession area. The authors argue that current subsidy policies in the Northeast region artificially lower tariffs, hindering PV growth in areas with the highest solar potential. They conclude that climate mitigation policies must address demand-side frictions and tariff structures rather than focusing solely on natural resource availability.

The report examines the intersection of urban growth, aging electricity infrastructure, and climate change in Canada, arguing that the deployment of smart grid technologies is essential for decarbonization and grid resiliency. It identifies a significant financing gap for modernization, estimating a need for CAD 350 billion in investment over 20 years. The document outlines four emerging business models—Energy Service Provider, Customer Energy Marketplace, Local Balancing Authority, and Smart City—and notes that their adoption varies by region. It highlights barriers to smart grid deployment, including technical complexity, cyber security risks, and regulatory frameworks that treat smart investments as traditional capital infrastructure. The report concludes by calling for a National Vision on Grid Modernization to coordinate stakeholders and align the energy transition with mid-century climate goals.

The report examines the role of microgrids in the global energy transition, highlighting how falling costs of solar and wind energy enable these small networks to provide reliable, low-carbon power. It compares connected microgrids, which can operate independently during outages, with isolated microgrids, such as those in the Caribbean, which must be self-sufficient. The text emphasizes that both types face similar challenges in balancing variable renewables with firm energy sources and suggests that knowledge sharing, particularly from island nations leading in renewable integration, can accelerate the global transition.

The briefing examines how blockchain's inherent properties—such as tamperproofing, decentralization, and public-private key cryptography—can protect the electrical grid from cyber-threats. It highlights the risks posed by the proliferation of Internet-connected energy devices and proposes blockchain as a solution to obsolete authentication methods and data manipulation. While noting that blockchain introduces a new risk of key mismanagement, the author suggests that integrating keys into physical devices can mitigate this issue.

The report examines the potential for electric vehicles to act as flexible loads to balance electricity supply and demand, particularly to mitigate the 'duck curve' caused by high solar penetration. It analyzes technical barriers, utility roles, and rate designs, concluding that managed charging can reduce system costs and emissions if aligned with clean energy availability.

Amory B. Lovins of RMI argues that subsidies for distressed nuclear plants are unjustified because closing high-cost nuclear units and reinvesting their operating expenses into energy efficiency can reduce more carbon than maintaining the plants. He contends that 'baseload' power is not a grid requirement and that variable renewables are more resilient and cost-effective than central thermal plants.

RMI defends its research on grid defection, asserting that while full disconnection from the utility may currently only be economical in Hawaii, the declining costs of distributed energy resources (DERs) create a risk of stranded utility assets. RMI critiques a Rochester Institute of Technology (RIT) study for focusing only on present-day costs and a limited set of DER options, arguing that the threat of future defection empowers customers and necessitates reforms in utility business models and retail pricing to achieve an integrated, cost-optimal grid.

The report addresses the conflict between the Northeastern U.S.'s aggressive renewable energy targets and its limited available land. It argues that meeting these goals requires a combination of innovative siting on low-conflict lands (such as brownfields and prison lands), the acceleration of offshore wind, the use of distributed energy resources, and the import of Canadian hydroelectricity. The authors emphasize that overcoming local opposition through early community engagement and 'Smart from the Start' principles is critical to avoiding project delays and failures.

The analysis finds that high utility demand charges are a primary barrier to the profitability of public DCFC operators, sometimes accounting for over 90% of electricity costs. By modeling current usage data from 230 California stations across four future EV growth scenarios, the report demonstrates that proposed EV-specific tariffs from Southern California Edison (SCE) and San Diego Gas & Electric (SDG&E)—which reduce or eliminate demand charges—would significantly lower costs and enable a more sustainable business model. The authors argue for a shift toward time-varying volumetric rates and the socialization of some infrastructure costs to meet California's transportation electrification goals.

The document outlines a structured approach to grid modernization, emphasizing integrated distribution planning and the use of outcome-oriented metrics for affordability, resilience, and environmental performance. It suggests tying utility revenue to these performance targets through conditional rates of return or budget caps with shared savings to align utility incentives with public benefits.

The report identifies a significant investment opportunity in U.S. community-scale solar (CSS), estimated by NREL to be between $8.2 and $16.3 billion by 2020. It argues that CSS, typically sized between 0.5 and 5 MW, offers a cost-effective middle ground between residential and utility-scale solar. To unlock this potential, the document suggests adapting existing project finance and securitization models, utilizing innovative tools like New Markets Tax Credits, and implementing risk mitigants such as anchor tenants and subscription cushions to address customer attrition and regulatory uncertainty.

The document outlines eight key areas for electricity innovation in 2017, focusing heavily on the integration, valuation, and management of distributed energy resources (DERs). It highlights the shift toward technology-agnostic DER valuation, the potential for electric vehicles to serve as grid assets, and the need for alternative capital planning to displace traditional infrastructure. The text also addresses the necessity of evolving utility business models, establishing distribution system operators (DSOs), improving customer engagement, and expanding DER access to low- and moderate-income customers.