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Strategies to save energy in the context of the energy crisis: a review
New technologies, systems, societal organization and policies for energy saving are urgently needed in the context of accelerated climate change, the Ukraine conflict and the past coronavirus disease 2019 pandemic. For instance, concerns about market and policy responses that could lead to new lock-ins, such as investing in liquefied natural gas infrastructure and using all available fossil fuels to compensate for Russian gas supply cuts, may hinder decarbonization efforts. Here we review energy-saving solutions with a focus on the actual energy crisis, green alternatives to fossil fuel heating, energy saving in buildings and transportation, artificial intelligence for sustainable energy, and implications for the environment and society. Green alternatives include biomass boilers and stoves, hybrid heat pumps, geothermal heating, solar thermal systems, solar photovoltaics systems into electric boilers, compressed natural gas and hydrogen. We also detail case studies in Germany which is planning a 100% renewable energy switch by 2050 and developing the storage of compressed air in China, with emphasis on technical and economic aspects. The global energy consumption in 2020 was 30.01% for the industry, 26.18% for transport, and 22.08% for residential sectors. 10–40% of energy consumption can be reduced using renewable energy sources, passive design strategies, smart grid analytics, energy-efficient building systems, and intelligent energy monitoring. Electric vehicles offer the highest cost-per-kilometer reduction of 75% and the lowest energy loss of 33%, yet battery-related issues, cost, and weight are challenging. 5–30% of energy can be saved using automated and networked vehicles. Artificial intelligence shows a huge potential in energy saving by improving weather forecasting and machine maintenance and enabling connectivity across homes, workplaces, and transportation. For instance, 18.97–42.60% of energy consumption can be reduced in buildings through deep neural networking. In the electricity sector, artificial intelligence can automate power generation, distribution, and transmission operations, balance the grid without human intervention, enable lightning-speed trading and arbitrage decisions at scale, and eliminate the need for manual adjustments by end-users.
Journal Article
Harmonic healing
\"We live in an age of unprecedented flourishing of technology in medicine. So why are we experiencing such epidemic levels of pain, disease, emotional and mental stress, and just plain-old poor health--often at such uncommonly young ages?.. After guiding thousands of patients on their journeys back to health, Dr. Linda Lancaster has seen it is the interplay of invisible forces such as chemicals, heavy metals, radiation, and opportunistic parasites, that causes many of the health struggles we experience today ... In this six-week foundational program, you will learn how to cleanse your liver, neutralize environmental pollution, revitalize your energy and return to a balanced state of health, using solely nontoxic, inexpensive, and natural protocols.\"--Jacket.
Book
Hydrogen Fuel Cell Technology for the Sustainable Future of Stationary Applications
The climate changes that are becoming visible today are a challenge for the global research community. The stationary applications sector is one of the most important energy consumers. Harnessing the potential of renewable energy worldwide is currently being considered to find alternatives for obtaining energy by using technologies that offer maximum efficiency and minimum pollution. In this context, new energy generation technologies are needed to both generate low carbon emissions, as well as identifying, planning and implementing the directions for harnessing the potential of renewable energy sources. Hydrogen fuel cell technology represents one of the alternative solutions for future clean energy systems. This article reviews the specific characteristics of hydrogen energy, which recommends it as a clean energy to power stationary applications. The aim of review was to provide an overview of the sustainability elements and the potential of using hydrogen as an alternative energy source for stationary applications, and for identifying the possibilities of increasing the share of hydrogen energy in stationary applications, respectively. As a study method was applied a SWOT analysis, following which a series of strategies that could be adopted in order to increase the degree of use of hydrogen energy as an alternative to the classical energy for stationary applications were recommended. The SWOT analysis conducted in the present study highlights that the implementation of the hydrogen economy depends decisively on the following main factors: legislative framework, energy decision makers, information and interest from the end beneficiaries, potential investors, and existence of specialists in this field.
Journal Article
Desert energy : a guide to the technology, impacts, and opportunities
\"This book examines the key technologies being deployed in an effort to tap the potential presented by world's deserts for siting large-scale solar power applications, and surveys the feasibility of such projects given the remoteness and the hostility of these environments Focusing on large scale photovoltaics and concentrating solar thermal power, it explains how the systems work, projects that are being planned, the required scales, and the technical difficulties they need to overcome to function effectively. It then moves on to examine the economics of such projects (including financing) and the social and environmental effects they may have. Illustrated throughout by reference to built or planned projects, and written in a clear, jargon-free style, this is a must-read for anyone interested in the development of large scale solar applications\"-- Provided by publisher.
Book
Impact of Electricity Pricing Policies on Renewable Energy Investments and Carbon Emissions
We investigate the impact of pricing policies (i.e., flat pricing versus peak pricing) on the investment levels of a utility firm in two competing energy sources (renewable and conventional), with a focus on the renewable investment level. We consider generation patterns and intermittency of solar and wind energy in relation to the electricity demand throughout a day. Industry experts generally promote peak pricing policy as it smoothens the demand and reduces inefficiencies in the supply system. We find that the same pricing policy may lead to distinct outcomes for different renewable energy sources due to their generation patterns. Specifically, flat pricing leads to a higher investment level for solar energy, and it can lead to still more investments in wind energy if a considerable amount of wind energy is generated throughout the day. We validate these results by using electricity generation and demand data of the state of Texas. We also show that flat pricing can lead to substantially lower carbon emissions and a higher consumer surplus. Finally, we explore the effect of direct (e.g., tax credit) and indirect (e.g., carbon tax) subsidies on investment levels and carbon emissions. We show that both types of subsidies generally lead to a lower emission level but that indirect subsidies may result in lower renewable energy investments. Our study suggests that reducing carbon emissions through increasing renewable energy investments requires careful attention to the pricing policy and the market characteristics of each region.
This paper was accepted by Serguei Netessine, operations management
.
Journal Article
Transition to hydrogen : pathways toward clean transportation
\"This book is a comprehensive and objective guide to understanding hydrogen as a transportation fuel. The effects that pursuing different vehicle technology development paths will have on the economy, the environment, public safety and human health are presented with implications for policy makers, industrial stakeholders and researchers alike. Using hydrogen as a fuel offers a possible solution to satisfying global mobility needs, including sustainability of supply and the potential reduction of greenhouse gas emissions. This book focuses on research issues that are at the intersection of hydrogen and transportation, since the study of vehicles and energy-carriers is inseparable. It concentrates on light duty vehicles (cars and light trucks), set in the context of other competing technologies, the larger energy sector and the overall economy. The book is invaluable for researchers and policy makers in transportation policy, energy economics, systems dynamics, vehicle powertrain modeling and simulation, environmental science and environmental engineering\"-- Provided by publisher.
Book
Renewable energy for sustainable development in India: current status, future prospects, challenges, employment, and investment opportunities
The primary objective for deploying renewable energy in India is to advance economic development, improve energy security, improve access to energy, and mitigate climate change. Sustainable development is possible by use of sustainable energy and by ensuring access to affordable, reliable, sustainable, and modern energy for citizens. Strong government support and the increasingly opportune economic situation have pushed India to be one of the top leaders in the world’s most attractive renewable energy markets. The government has designed policies, programs, and a liberal environment to attract foreign investments to ramp up the country in the renewable energy market at a rapid rate. It is anticipated that the renewable energy sector can create a large number of domestic jobs over the following years. This paper aims to present significant achievements, prospects, projections, generation of electricity, as well as challenges and investment and employment opportunities due to the development of renewable energy in India. In this review, we have identified the various obstacles faced by the renewable sector. The recommendations based on the review outcomes will provide useful information for policymakers, innovators, project developers, investors, industries, associated stakeholders and departments, researchers, and scientists.
Journal Article
The body in balance : qigong healing at any age with energy, breath, movement, and 50 nourishing recipes
Unlock connection with your body and harness the power of self-healing. A fifth-generation practitioner of medical qigong, Master FaXiang Hou has dedicated a lifetime of study to women's health. Qigong is the traditional Chinese practice of low-impact body movement based on the ancient theory that the beneficial flow of energy-or oqio-through the body restores vitality and regulates the functions of the mind, body, and breath. Drawing on centuries-old knowledge, the practice protects against disease and other complications that arise when the meridians through which energy flows are blocked. Qigong has had spectacular results in patients, eliminating the need for medication and surgery that Western doctors often recommend for concerns that are simply part of the natural stages of a woman's life.a This guide contains qigong exercises with photo instructions, as well as mindful breathing techniques, acupressure, herbal remedies, a seasonal fasting plan, and 50 delicious healing recipes, including Ma Po Tofu and Lotus Root and Asian Pear Stir-Fry. Master Hou teaches women at any stage in their lives how to manage their internal energy, awaken their own powers of self-healing, and gain insight into the deep connections within their bodies. Women seeking in natural solutions to sleeping soundly, strengthening the immune system, thriving during childbearing years, taking menopause in stride, and achieving overall wellness in their lives will find answers here.
Book
The clean energy claims of BP, Chevron, ExxonMobil and Shell: A mismatch between discourse, actions and investments
The energy products of oil and gas majors have contributed significantly to global greenhouse gas emissions (GHG) and planetary warming over the past century. Decarbonizing the global economy by mid-century to avoid dangerous climate change thus cannot occur without a profound transformation of their fossil fuel-based business models. Recently, several majors are increasingly discussing clean energy and climate change, pledging decarbonization strategies, and investing in alternative energies. Some even claim to be transforming into clean energy companies. Given a history of obstructive climate actions and “greenwashing”, there is a need to objectively evaluate current and historical decarbonization efforts and investment behavior. This study focuses on two American (Chevron, ExxonMobil) and two European majors (BP, Shell). Using data collected over 2009–2020, we comparatively examine the extent of decarbonization and clean energy transition activity from three perspectives: (1) keyword use in annual reports (
discourse
); (2) business strategies (
pledges and actions
); and (3) production, expenditures and earnings for fossil fuels along with investments in clean energy (
investments
). We found a strong increase in discourse related to “climate”, “low-carbon” and “transition”, especially by BP and Shell. Similarly, we observed increasing tendencies toward strategies related to decarbonization and clean energy. But these are dominated by pledges rather than concrete actions. Moreover, the financial analysis reveals a continuing business model dependence on fossil fuels along with insignificant and opaque spending on clean energy. We thus conclude that the transition to clean energy business models is not occurring, since the magnitude of investments and actions does not match discourse. Until actions and investment behavior are brought into alignment with discourse, accusations of greenwashing appear well-founded.
Journal Article