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  • Renewable Energy and Energy Efficiency : Assessment of Projects and Policies
    Renewable Energy and Energy Efficiency : Assessment of Projects and Policies

    The recent rise to prominence of renewable energy and energy efficiency has been driven by their potential to lower the environmental impacts of energy use.As these technologies mature they must demonstrate not only their environmental benefits, but also their economic competitiveness.The relative costs and benefits of each potential project, whether large or small, must be systematically modelled and assessed before they can be financed and implemented. Renewable Energy and Energy Efficiency: Assessment of Projects and Policies deals with the appraisal of such projects against financial and non-financial criteria, illustrating the assessment tools necessary to make appropriate, evidence based decisions as efficiently as possible.The most important technologies are first described, stressing their economic and performance characteristics.Key project appraisal concepts are then introduced, approaches to modelling the cash flows in energy projects are described, and the issues of uncertainty and optimisation are fully discussed.These financial concepts, together with methods for estimating greenhouse gas emissions, are extended to address aspects of energy policy.Illustrated with many case studies this is an ideal introduction to financial and non-financial appraisal techniques as applied to energy efficient and renewable energy technologies.

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  • Formal SQL Tuning for Oracle Databases : Practical Efficiency - Efficient Practice
    Formal SQL Tuning for Oracle Databases : Practical Efficiency - Efficient Practice

    The target of SQL tuning is the improvement of the existing execution plan. The authors discuss the removal of brakes in the execution plan.Such "brakes" or bottlenecks can be recognized by a formal analysis of the execution plan.For this purpose no data model knowledge is needed. This is especially beneficial for database administrators because they are usually not or insufficiently familiar with the data model.The book presents numerous practical examples with this method.

    Price: 49.99 £ | Shipping*: 0.00 £
  • Sewage Treatment Plants : Economic Evaluation of Innovative Technologies for Energy Efficiency
    Sewage Treatment Plants : Economic Evaluation of Innovative Technologies for Energy Efficiency

    Sewage Treatment Plants: Economic Evaluation of Innovative Technologies for Energy Efficiency aims to show how cost saving can be achieved in sewage treatment plants through implementation of novel, energy efficient technologies or modification of the conventional, energy demanding treatment facilities towards the concept of energy streamlining.The book brings together knowledge from Engineering, Economics, Utility Management and Practice and helps to provide a better understanding of the real economic value with methodologies and practices about innovative energy technologies and policies in sewage treatment plants.

    Price: 120.00 £ | Shipping*: 0.00 £
  • Agricultural Planting Efficiency High Efficiency Side Port Transplanter
    Agricultural Planting Efficiency High Efficiency Side Port Transplanter

    Features: *Side-mouth transplanter handheld farm implement: This innovative farm implement features a side-mouth design that allows for easy and efficient plant transplanting. *Fast and precise: This tool features a handheld design that allows for quick and precise transplanting, saving time and effort. *Easy to use and reliable: Made from high-quality materials, this transplanter can withstand rigorous use in a variety of soil conditions. *Comfortable grip: The ergonomic handle provides a comfortable grip, reducing hand fatigue during prolonged use. *Versatile: Suitable for a variety of agricultural environments, this tool is an ideal tool for transplanting small plants. Specifications: *Product name: Side-mouth transplanter handheld farm implement *Material: Stainless steel *Size: As shown in the picture *Color: Silver *Fitment: Farm implements *Number of pieces: 1 Package content: 1×Side-mouth transplanter handheld farm implement Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.

    Price: 22.63 € | Shipping*: 0.0 €
  • What is the efficiency of a space heater with 100% efficiency?

    A space heater with 100% efficiency would convert all the electrical energy it consumes into heat, making it extremely efficient. This means that all the energy input is converted into useful output, with no waste. However, it's important to note that achieving 100% efficiency in real-world devices is extremely difficult due to factors such as heat loss and other inefficiencies in the system.

  • What is energy efficiency?

    Energy efficiency refers to using less energy to perform the same task or function, ultimately reducing energy waste and lowering energy costs. This can be achieved through various methods such as using energy-efficient appliances, improving insulation in buildings, and implementing energy-saving practices in industrial processes. Energy efficiency is an important aspect of sustainable development and can help reduce greenhouse gas emissions and mitigate the impact of climate change. By improving energy efficiency, we can conserve natural resources and create a more sustainable and environmentally friendly energy system.

  • What is the efficiency?

    Efficiency is a measure of how well resources are utilized to achieve a specific goal or outcome. It is often expressed as the ratio of output to input, showing how much output is produced per unit of input. High efficiency means that resources are being used effectively and wastage is minimized, leading to optimal results. In contrast, low efficiency indicates that resources are not being utilized efficiently, resulting in lower productivity and potentially higher costs.

  • Can the efficiency be zero?

    No, efficiency cannot be zero. Efficiency is a measure of how well a system or process uses inputs to produce outputs, and it is always a positive value between 0 and 1. A value of zero would indicate that no useful work is being done, which is not possible in a functioning system. If a system is not producing any useful output, its efficiency would be close to zero but not exactly zero.

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  • Sustainable Home Refurbishment : The Earthscan Expert Guide to Retrofitting Homes for Efficiency
    Sustainable Home Refurbishment : The Earthscan Expert Guide to Retrofitting Homes for Efficiency

    A retro-fit offers many benefits: cutting electricity and heating bills, increasing the resale value of homes, slashing carbon emissions and creating a healthier place to live.This book is the guide to making it happen. It looks at: draught-proofing, insulation and damp ventilation, heating and cooling electrical efficiency and renewable energy water use and re-use materials' life cycles and incorporating nature protection from climate change impacts - modelling energy flows and embodied energy how we can meet the need to cut carbon emissions from dwellings by eighty percent by 2050. Projects can apply to apartment blocks, recent builds and older, solid-walled properties.Enlivened with helpful diagrams and photographs, plus plenty of pointers for further information, it provides a comprehensive resource handbook for any building professional and contractor, students – or any homeowner serious about efficiency (cash and carbon) savings.

    Price: 36.99 £ | Shipping*: 0.00 £
  • Energy Efficiency Matters
    Energy Efficiency Matters


    Price: 11.99 £ | Shipping*: 3.99 £
  • Efficiency Lodge Cartersville
    Efficiency Lodge Cartersville


    Price: 307 € | Shipping*: 0.00 €
  • Wild Tornado Powerful Sink & Drain Cleaner High Efficiency Clog Remover & Clean
    Wild Tornado Powerful Sink & Drain Cleaner High Efficiency Clog Remover & Clean

    Wild Tornado Powerful Sink & Drain Cleaner High Efficiency Clog Remover & Clean

    Price: 6.25 £ | Shipping*: 0 £
  • What are power and efficiency?

    Power is the rate at which work is done or energy is transferred, and it is measured in watts. It represents the ability to exert force or to perform work. Efficiency, on the other hand, is a measure of how well a system or process uses energy or resources to accomplish a task. It is the ratio of useful output to total input, and it indicates how effectively energy is being converted into useful work. In summary, power is the capacity to do work, while efficiency is the measure of how well that work is being done.

  • What is an efficiency gain?

    An efficiency gain refers to the improvement in productivity or output that is achieved by using fewer resources. This can be achieved through streamlining processes, reducing waste, improving technology, or increasing the skills of the workforce. Efficiency gains are important for businesses as they can lead to cost savings, increased profitability, and a competitive advantage in the market. Overall, efficiency gains help organizations to achieve more with less, ultimately leading to improved performance and success.

  • How high is the efficiency?

    The efficiency is very high, as the process is streamlined and optimized to ensure maximum output with minimal resources. By eliminating unnecessary steps and focusing on key tasks, the efficiency is greatly improved. This allows for tasks to be completed quickly and accurately, resulting in higher productivity and overall success.

  • What is efficiency in physics?

    Efficiency in physics refers to the ratio of useful work output to the total energy input in a system. It is a measure of how well a system can convert input energy into useful output energy. A system with high efficiency will waste less energy and be more effective in its operation. Efficiency is an important concept in physics as it helps in evaluating the performance of various systems and technologies.

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