Digitalization uses digital technologies and systems to improve, transform, or create processes, operations, and services. It involves integrating digital tools and technologies, especially computers and
In 1898, H. Riall Sankey developed a diagram illustrating steam engine efficiency, leading to the widespread use of Sankey diagrams for visualizing energy flows in various systems. They effectively display energy extraction, transformation, consumption, and losses while mapping the roles of primary and secondary energy sources across different usage sectors.
In 2023, US drivers consumed 376 million gallons of gasoline daily, with superusers accounting for 35% of usage. Rural areas have more superusers, spending 10.2% of their income on gasoline. They also tend to drive larger, less fuel-efficient vehicles. Electric vehicle policies targeting superusers could reduce energy burdens and emissions, benefiting low-income households.
The efficiency of a thermal power plant is the ratio of the electricity output to the energy input, taking into account the heat losses. Over the years, the average efficiency of thermal power plants using fossil fuels in the United States has significantly increased, from 4% in 1900 to 43% in 2023. This improvement is attributed to reducing heat loss in the three main energy conversion processes: fuel combustion, steam generation, and electricity generation.
Throughout human history, the development of new machines to replace and enhance human and animal labor has played a major role in the energy sector. Key advancements include combustion engines and turbines, which convert fuels like gasoline and natural gas into useful work.
The world energy system is experiencing seismic shifts, with a rapid expansion of low-carbon fuels and energy efficiency. However, fossil fuels still dominate investments despite the need to reduce greenhouse gas emissions. Different countries prioritize energy RD&D in diverse ways, and state-owned enterprises play a significant role.
Weatherization offers energy and non-energy benefits to households. It involves insulating homes, installing energy-efficient systems, and reducing energy bills. Non-energy benefits include improved health outcomes, such as reduced thermal stress and asthma symptoms. However, challenges like deferred assistance, low coverage, and bias against renters limit the program’s impact.
Renew Boston Trust is a program launched by the City of Boston to improve energy efficiency in municipal buildings. By implementing energy conservation measures, such as lighting upgrades and weatherization, the program aims to reduce energy use and lower greenhouse gas emissions