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Earlier sources: Energy
Energy research and engineering concern how power is produced, stored, delivered, and consumed. Follow solar and nuclear power, fusion, geothermal systems, batteries, electricity grids, and changing power demand.
SYMTRI organizes observations from public sources into a living map. Connections reflect shared subject matter; they do not establish causation or endorse a source.
Open in the map ↗693 classified signals in the fourteen-day window. Recent momentum: steady. These counts include signals awaiting readable evidence.
Earlier sources
Up to ten sources with readable evidence, ordered by their feed timestamp. These archive sources can be older than the live fourteen-day window. This list is a sample, not a measure of total activity. Dates distinguish paper publication, repository creation, model/dataset activity, Hacker News posts, and KEV catalog additions. “First archived” records when SYMTRI first stored the signal.
- OpenAlex · Published · First archived
Spatially Informed Techno-Economic and Resilience Optimization of Hydrogen–Biogas Microgrids for Energy-Burdened Rural Communities ↗
Energy-burdened rural communities require hybrid renewable energy storage solutions that are not only economically viable but also resilient to extended generation shortfalls. This study develops a spatially informed techno-economic and resilience assessment framework for hydrogen–biogas renewable microgrids and applies it to Robeson County, North Carolina. A Hydrogen Priority Index (HPI) is used to identify locations where high household energy burden coincides with favorable renewable energy suitability. Four community-scale microgrid configurations are then evaluated in HOMER Pro under stan…
- OpenAlex · Published · First archived
Hybrid parabolic dish-fresnel lens solar system with transparent dual-aperture baffle-guided receiver: Comprehensive energy and exergy analysis ↗
This study proposes a transparent dual-aperture receiver with baffle-guided spiral flow for hybrid solar parabolic dish concentrator (PDC) and Fresnel lens (FRL) systems. Transparent walls on both faces admit the reflected and transmitted beams into the receiver's internal surfaces, while radial baffles guide the fluid across both irradiated surfaces in series. A transient framework coupling Monte Carlo ray tracing (MCRT), computational fluid dynamics (CFD), conjugate heat transfer, and exergy analysis is validated against experimental data with mean absolute percentage errors below 1.2%, with…
- OpenAlex · Published · First archived
Energy-efficient and trust-aware routing using quantum K-means clustering and hybrid PSO-SSO optimization for WSN-based IoT ↗
Wireless Sensor Network plays a crucial role in IoT applications, but they face numerous challenges such as limited energy, insecure routing, and inefficient cluster head selection, which lower the network lifetime and reliability. To overcome these challenges, this paper proposes a quantum K-means assisted trust-aware energy-efficient routing framework. The proposed method deploys a multi-dimensional trust model which integrates the direct, indirect, behavioural and energy trust to ensure the node is trustworthy. Moreover, Quantum K-means clustering has been employed to balance the clusters,…
- OpenAlex · Published · First archived
A Sensor-to-API Data Infrastructure for Building Digital Twins: Harmonizing Multi-Rate IoT Energy and Indoor Data Streams for Proactive Analytics ↗
Digital twins are increasingly used in smart buildings to monitor energy use. This requires reliable sensor data, geospatial information, and semantically rich 3D building geometry. However, building sensor data often has inconsistent sampling, missing timestamps, extreme spikes, and restricted access, hindering reproducibility and integration with spatial and 3D building models. This paper presents a sensor-to-API data infrastructure that prepares heterogeneous building sensor data for integration into a digital twin platform implemented at the GATE Institute. Circuit-level electricity data w…
- OpenAlex · Published · First archived
Silicon-Deposited Porous Carbon Anodes: A Design Paradigm for Next-Generation High-Energy-Density Lithium-Ion Batteries ↗
Silicon is a promising anode for high-energy-density lithium-ion batteries (LIBs) due to its exceptionally high theoretical capacity, yet severe volume expansion and interfacial instability hinder practical application. Silicon-deposited porous carbon (SiDPC), which spatially confines nanosized silicon within porous carbon frameworks, offers a distinct structural paradigm beyond conventional mechanically blended Si-C composites. This mini-review summarizes the evolution and engineering principles of SiDPC architectures, highlighting how structural regulation governs electrochemical performance…
- OpenAlex · Published · First archived
Multi-interfacial engineered waste cardboard aerogels enabling high thermal storage density and solar-driven temperature regulation in buildings ↗
Form-stable phase change materials (PCMs) are vital for building energy conservation, yet balancing thermal storage density, leakage prevention, and photothermal conversion remains challenging. Herein, a high-energy-density, solar-driven composite PCM was fabricated by upcycling waste cardboard into a robust 3D aerogel skeleton. The skeleton was cross-linked via sodium alginate/Ca 2+ and functionalized with carbon nanotubes (CNTs) using sodium carboxymethyl cellulose (CMC Na) as an interfacial binder, followed by vacuum impregnation of eicosane (EI) and polydimethylsiloxane (PDMS) coating enca…
- OpenAlex · Published · First archived
Degradation and Stabilization of Inverted Perovskite Solar Cells ↗
Inverted small-area perovskite solar cells fabricated in the laboratory have achieved a power conversion efficiency of 28%. Nevertheless, stability remains the key bottleneck. This review systematically analyses external stressors moisture, heat, light, oxygen, electric field, intrinsic ion migration and interfacial defects, alongside stabilization strategies including composition, passivation, 2D/3D heterojunctions, facets engineering, and encapsulation. Synergistic stressors produce nonlinear degradation; effective strategies must tackle multiple pathways simultaneously without impairing cha…
- OpenAlex · Published · First archived
Theoretical investigation on potassium storage performance of MoSe₂ with single/dual-element doping of vanadium and niobium ↗
Potassium-ion batteries (PIBs) offer the advantages of low cost and relatively high operating voltage and have emerged as promising energy-storage systems. Layered molybdenum diselenide (MoSe₂) is considered an attractive anode material for PIBs due to its high theoretical specific capacity and large interlayer spacing. In this work, based on first-principles calculations, single V-doped, single Nb-doped and V/Nb co-doped 1 T’-phase MoSe₂ systems were constructed to systematically investigate the modulation mechanisms of these dopants on potassium storage behaviors. The calculation results dem…
- OpenAlex · Published · First archived
Modeling of Actively Forced Close‐Contact Melting in Latent Heat Storage Systems for Performance Evaluation ↗
ABSTRACT Latent heat storage systems constitute a promising technology for thermal energy storage applications. They function by absorbing/releasing large amounts of energy during phase changes. A critical metric for these thermal storage systems is the charging and discharging rate. For latent heat storage systems based on a solid–liquid phase change material (PCM), it has been shown that the charging rate can be increased by actively forcing the solid PCM against a heat source. In this work, we focus particularly on the charging process of such a force‐assisted thermal storage system by pres…
- OpenAlex · Published · First archived
Techno-Economic Optimization of Vanadium Redox Flow Batteries for Large-Scale Stationary Storage: A Case Study at Fraunhofer Institute for Chemical Technology ↗
Integrating battery energy storage systems is crucial for increasing the flexibility of power systems with a high proportion of variable renewable energy sources. Although lithium-ion batteries dominate applications due to their high energy density and falling costs, their use in large-scale stationary settings is limited by rapid capacity fade, performance degradation, safety concerns and reliance on critical raw materials. Vanadium redox flow batteries (VRFBs) offer a promising alternative due to their scalability, long lifetime, inherent safety, and the recoverability of capacity fade assoc…
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How to assess evidence about Energy
Check each original source for its methods, release status, limitations, and supporting data. A repository announcement, a preprint, and a published study provide different kinds of evidence. SYMTRI’s subject classification helps discovery; it does not independently validate the source’s claims.
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