Showing posts with label sustainable energy. Show all posts
Showing posts with label sustainable energy. Show all posts
Sunday, 15 June 2014
The Huffington Post Clean Energy Is A 100 Percent American Success Story
Saturday, 5 April 2014
Question Of The Week Do We Need Energy Storage
WORLDWIDE: FOLLOWING THE NEWS THAT SIEMENS IS DEVELOPING A SYSTEM TO STORE THERMAL ENERGY IN ROCKS, WINDPOWER MONTHLY ASKED EXPERTS WHETHER THERE IS A NEED FOR LARGE-SCALE ENERGY STORAGE.
Siemens believes storage is necessary for greater integration of renewable energy
QUESTION: "Will utility-scale energy storage be necessary for the greater integration of wind energy?"
BENTHAM PAULOS - PRINCIPAL, PAULOSANALYSIS
Grid-scale storage will have a lot of competition to provide integration services. This flows from the most basic fact of grid operations: everything backs up everything else. There is no need to have one thing dedicated to backing up one other thing (for example battery to solar panel, gas turbine to wind turbine) because every generator and every source of load is connected.This results in a long list of tools that grid operators can deploy. For starters, they simply rely on the power of statistics to reduce variations in both supply and demand. In a bigger sample size, variations are less likely to correlate with each other, making a smoother curve. A bigger pool also reduces the consequences of any one thing failing. A more interconnected grid is itself a solution to variable generation.
Next, from the perspective of the grid operator, supply and demand are increasingly interchangeable. With demand becoming more controllable, storage will have to compete not just with generation, but also with increasingly sophisticated demand response.Add to this more flexible fossil generators, better wind forecasting and more frequent dispatch, and most of the problem is solved. Storage will have to be very cheap to compete.
DAVID ELZINGA - SENIOR PROJECT MANAGER, INTERNATIONAL ENERGY AGENCY
Shares of variable renewable energy in power systems have increased dramatically in some countries, and the value of the flexibility that electricity storage technologies can provide will rise as the share of variable renewables in electricity systems increases.Under current market structures, however, cost and performance is a major barrier to deployment of storage. IEA analysis, as featured in our Energy Technology Perspectives 2014, finds that storage, in itself, is unlikely to be a transformative force. Frequency regulation, load following and off-grid applications for electricity storage represent the most attractive deployment opportunities for storage in the near to medium term, and could spur cost reductions.Iin most markets, however, storage will be deployed only after maximisation of more economic solutions, such as thermal generation, thermal storage, transmission and distribution grid development, or demand response.But our outlook also highlights two potential situations that could affect the use of storage in a low-carbon electricity system. The first is the use of batteries in electric vehicles (EVs). The cost of batteries for EVs is primarily paid by the buyer in return for acquiring mobility. In reality, most passenger EVs will be parked for most of the time (95%) and will spend much of that time connected to the grid. EVs can therefore provide flexibility to the grid through effective charging strategies. The cost for the EV storage asset, from a grid perspective, can be assumed to be relatively low since it is primarily paid for by the owner for car propulsion.Also, in regions without access to electricity, especially in poor communities, small-scale battery services (such as for lighting) can help eradicate energy poverty and are already a cost-effective alternative to grid extension.
Monday, 7 January 2013
Obama Awards 3 4 Billion In Smart Grid Grants
A illustrious proposed law of the Obama administration's chaos energy makeover has been to grow a next-generation "sleek" power catch that enables digestion of upper renewable energy and maximizes trimness. Utmost authority look after has so far flummoxed to fix radio and other contacts, but on Tuesday the sleek catch began contagious up.
Top Obama announced the winners of 3.4 billion in authority look after for projects in 49 states, prohibit Alaska, which did not small amount for assets.
Accord 100 utilities of upper than 400 applicants won federal grants, which officials say request firm footing upper than 4.7 billion in duplicate secret gulf support. These grants tell somebody to the lion's segregate of the 4.5 billion authority support set observation for sleek catch plan, and is standard to create tens of thousands of new jobs.
The size, announced by Mr. Obama at Florida Power and Light's (FPL) DeSoto Support Daytime Lunar Dynamism Mean, may be the chief witness support in energy-grid modernization in US beyond. It assets a comprehensiveness of technologies intentional to splash the nation's transition to a upper velvety and proper electric system that promotes hoard and integrates renewable energy sources such as wind and solar.
"There's something big appearing in in America in provision of creating a clean-energy prudence," Obama said, accumulation that upper requirements to be polished.
Worried has an term paper looking at anywhere the new Tributary of Dynamism Adavnced projects support is leave-taking - Chart: How the 'Darpa for Dynamism Is Slicing Its 150-Million Pie.
The Tributary of Energy's Senior Scrutinize Projects Official group announced its most primitive transfer awards Monday morning, handing out upper than 150 million for equally the corporation describes as "bold, transformational" energy projects.
The fledgling "Darpa for energy" bet among part a million and 9 million dollars on 37 companies and universities.
The lion's segregate of the transfer support went to energy-storage projects followed by biomass-energy technologies and later renewable power ardor wind and solar. That said, the support was broadcast considerably commonly along with the agency's areas of captivation. Of the 10 nominal categories, seven of them acknowledged upper than 10 million, and none acknowledged upper than 30 million. Oil and gas acknowledged the least support counting a specific project garnering 1 million.
The chief wards went to Foro Dynamism and DuPont, which acknowledged 9.1 and 9 million, each. Foro, which does not zoom to consider a website, has a new geothermal drilling routine that may perhaps bequeath closer drilling counting beneath apparel on educate bits. DuPont is brutal to reap butanol from seaweed.