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Ihering Alcoforado

Biofuels: indirect land use change and climate impact - 0 views

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    "The objective of this study is to:  compile the available recent literature on ILUC emissions;  compare these emissions with the assumed gains of biofuels;  assess how ILUC changes the carbon balance of using biofuels;  formulate policies to avoid these extra emissions associated with ILUC. Trends in land use, with and without biofuels All the studies on global agricultural markets reviewed predict that new arable land will be required to meet future global demand for food and feed. Although there will be increased productivity on current arable land (intensification), food and feed demand will probably grow faster, which means that mobilization of new land is likely to occur. Biofuels produced from crops (the current mainstream practice) will add extra demand for crops like wheat, rice, maize, rapeseed and palm oil. This will increase prices for these crops (as well as for land) and lead to two impacts: intensification of agricultural production and conversion of forests and grasslands to arable land. In this report we consider the issue of indirect land use change initiated by EU biofuels policy and seek to answer the following questions:  What is the probability of biofuels policies initiating land use changes?  What greenhouse gas emissions may result from indirect land use change, expressed as a factor in the mathematical relation given above?  What technical measures can be applied and what policy measures adopted to limit or entirely mitigate indirect land use change and the associated greenhouse gas emissions? We first (Chapter 2) broadly discuss the mechanism of indirect land use change. We next discuss why there is a perception among stakeholders that there is a serious risk that EU biofuels policy will initiate indirect land use change (Chapter 3) and consider the figures cited by other studies as an indication of the magnitude the associated greenhouse gas emissions  (Chapter 4). We then broadly consid
Hans De Keulenaer

Energy Outlook - 0 views

  • Oil commodity futures are in demand as financial instruments in a different way than when they were used primarily as a way for refiners and distributors to manage the risk on their physical market activities. As that demand grows--as more individuals, companies, and hedge funds want to participate in the oil market, without a link to any physical supply or demand for the commodity--then the price of these instruments ought to rise, in tandem. But with the price of most physical oil pegged to a futures market, whether for WTI or European Brent crude, that demand can influence the physical market, as well, without changing the real supply or demand by one barrel.
Hans De Keulenaer

The Impact of PV Solar on Peak Electric Demands | The Energy Collective - 1 views

  • PV solar proponents often claim because PV solar power “is there” during peak demand periods when higher spot prices are likely to occur, PV solar power should be evaluated against the higher spot prices for all hours of peak demand. 
davidchapman

Technology Review: Gadgets to Spur Energy Conservation - 0 views

  • Can glorified glow lamps stop blackouts and slash energy costs? Manhattan-based ConsumerPowerline thinks so. This winter, about a thousand participants in the company's energy-conservation program will receive small plug-in boxes that glow red when power demand peaks, urging them to turn off space heaters, defer dishwasher runs, or otherwise save electricity.
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    Can glorified glow lamps stop blackouts and slash energy costs? Manhattan-based ConsumerPowerline thinks so. This winter, about a thousand participants in the company's energy-conservation program will receive small plug-in boxes that glow red when power demand peaks, urging them to turn off space heaters, defer dishwasher runs, or otherwise save electricity.
Hans De Keulenaer

Capital-energy substitution: Evidence from a panel of Irish manufacturing firms - 2 views

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    "We use a translog cost function to model production in the Irish manufacturing sector over the period from 1991 to 2009. We estimate both own- and cross-price elasticities and Morishima elasticities of substitution between capital, labour, materials and energy. We find that capital and energy are substitutes in the production process. Across all firms we find that a 1% rise in the price of energy is associated with an increase of 0.04% in the demand for capital. The Morishima elasticities, which reflect the technological substitution potential, indicate that a 1% increase in the price of energy causes the capital/energy input ratio to increase by 1.5%. The demand for capital in energy-intensive firms is more responsive to increases in energy prices, while it is less responsive in foreign-owned firms. We also observe a sharp decline in firms' responsiveness in the first half of the sample period."
Colin Bennett

Water-to-water Heat Pumps to the Rescue? - 0 views

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    By Jorge Moreno, Environmental and Building Technologies, Frost & Sullivan With more end users focusing on reducing energy costs, energy-saving water-to-water heat pump (WTWHP) chillers are being deployed to reduce a facility's utility bills. A WTWHP chiller is a water-cooled chiller that is designed to produce hot water at a specified temperature. The use of a WTWHP chiller is very similar to a conventional centrifugal chiller except for the fact that it uses two compressors, slightly different piping configurations, and more advanced controls in order to balance cooling and heating loads. In a conventional chiller, cold water is produced for comfort cooling, and the hot water that is extracted from the refrigeration process goes into a cooling tower and is released into the atmosphere. In a WTWHP chiller, this hot water is captured and relocated to a second heating stage, where the temperature is raised and the water is used as a heating source for a building's heating requirements. The key strength of WTWHP chillers is the high coefficient of performance (COP) that translates into significant energy savings and a shorter payback period. On the other hand, the key weakness is that it can only provide such benefits in a narrow range of applications primarily due to its coincident need for cooling and heating requirements throughout the year to ensure efficiency. A coincident need means that the application demands sizable water heating load along with the typical high cooling requirements in summer, and a sizable chilled water load along with the typical heating requirements during winter. Cooling output is directly dependent on the demand for heating, and vice versa. Consequently, in the absence of sufficient heating requirements, there is only a limited amount of cooling that can be produced. Any excess heating or cooling cannot be stored and hence, it is critical to align the cooling with the expected heating requirements. Coincidentally, in the absence of suf
Hans De Keulenaer

» Demand Response and Renewables Integration Will Drive the Growth of Short-T... - 0 views

  • Due to the prohibitive cost of storing electricity on a major scale, short-term power markets are relied on to balance generation and load on a 24/7 basis.  These markets typically take the form of a day-ahead market that provides a preliminary forecast of the next day’s power generation and consumption, and a real-time market, which is used to balance the actual generation to load.
Colin Bennett

Solar Shortages Looming With Boom in Worldwide Demand - 0 views

  • First Solar, the world’s cheapest solar panel maker, is reporting that they cannot meet this years demand for solar panels, and three more major manufacturers; Suntech, Yingli and Trina are also signaling that they are sold out, according to Reuters.
Hans De Keulenaer

The Energy Roadmap - The future of electricity: A guide to the Smart Grid - 0 views

  • The world runs on electricity. Demand for electron power in emerging economies is often 3-4 times greater than demand for oil. Because the old model of the electricity grid does not seem adequate in meeting the new demands of the 21st century, many energy pundits argue that access to electricity is the world’s biggest strategic energy issue.
Sergio Ferreira

Clean Energy Can't Meet Growing Demand - 0 views

  • Demand for renewable energy is outstripping supply, pushing up prices and raising the specter that some states may not meet clean-energy mandates. Behind the shortage is the growing number of states requiring utilities to include clean energy in their power mix, as well as surging demand from big businesses.
Colin Bennett

Energy in China: Innovation, Competition, and Meeting Soaring Demand - 1 views

  • In light of this, The Energy Collective's latest webinar seeks to explore how China may rise to the challenge of meeting its rising energy demand while fighting climate change, and how those efforts will impact energy markets and technology in the rest of the world:
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    Event co-sponsor, Siemens Corp.
Hans De Keulenaer

IndustRE: Flexibility for variable renewable energy in energy intensive industries - Yo... - 2 views

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    The combination of demand-side management in industry and renewables provides a powerful recipe for decarbonisation.
Hans De Keulenaer

Trends and Innovations in copper demand - 3 views

  • The International Copper Association (ICA) is the leading authority on the fundamentals of future copper demand and substitution. ICA’s portfolio of material demand and substitution work covers global studies, surveys and detailed data sets. Full studies and data sets are used by ICA and its members for market development purposes, and select information is available to market commentators.
Hans De Keulenaer

Appliance Efficiency and Long-Run Energy Demand | Precourt Energy Efficiency Center (PE... - 1 views

  • This project will examine how people make decisions about appliance purchases and the effect that these choices have on energy demand. Currently, approximately half of U.S. greenhouse gas emissions are attributable to residential appliance use. However, consumers can reduce their long-run energy needs by replacing old appliances with ones that are more energy efficient. It is not surprising, then, that efficiency standards have been the cornerstone of U.S. energy conservation efforts to date. Unfortunately, the effect of these standards on appliance purchase behavior is not well understood. There are two primary reasons why. Current datasets lack crucial information, and even with appropriate data it is difficult to accurately model the dynamic aspect of appliance purchase behavior. This project addresses both of these issues.
Hans De Keulenaer

Businesses increasingly demanding renewable energy to cut costs | The Green Business Guide - 0 views

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    Launched today, the 2012 Corporate Renewable Energy Index (CREX) ranked over 300 companies globally according to their voluntary renewable energy procurement, as well as how and why they do it. The report found that CREX companies tend to fall in...
Colin Bennett

Variable-speed Drives Control Up To Three Motors Each - 0 views

  • With PFC enabled, the drive uses its internal PI regulator to control the speed of the first of the three motors to match the demand for pressure, temperature or flow. When the first motor is running at full speed, the drive issues a command for the second motor to start. Similarly, when demand exceeds capacity with two motors running, the drive starts the third.
Colin Bennett

Website on renewable resources trade launched in Suzhou - People's Daily Online - 0 views

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    Meanwhile, it provides the latest market information for scrap metal, plastic scrap and waste paper every day; and updates on supply and demand including daily waste rubber, waste electronic/electric equipment, waste glass and waste leather.
Colin Bennett

Climate Change = More Heat Waves = More Blackouts « Earth2Tech - 0 views

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    a report published today in the Journal of Applied Meteorology and Climatology details research from scientists at Lawrence Berkeley National Laboratory, which estimates that electricity demand could outstrip supply by as much as 17 percent on the hottest days in the coming decades.
Hans De Keulenaer

IBM to prime pump for smart-grid start-ups | Green Tech - CNET News.com - 0 views

  • The idea is to create a common set of communication protocols and data formats that utilities and smart-grid start-ups can adhere to.
  • The benefit of a more intelligent infrastructure is that load can be curtailed as needed and problems spotted more quickly. By flattening out spikes in demand, utilities may not need to build new power plants, which are expensive and opposed in some places for environmental and health reasons.
davidchapman

New Record: Wind Powers 40% Of Spain : MetaEfficient - 0 views

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    40% of Spain's demand met by wind during recent windy weekend. It would be interesting to know more - what was the demand, what percentage of available wind capacity was used, how variable was the wind, how was this variability managed, etc. Does anyone know anyone who knows?
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