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Showing posts with label Electric. Show all posts
Showing posts with label Electric. Show all posts

Monday, 7 December 2015

Municipal electric supplier announces deal for wind energy

Published 9:14 am, Monday, December 7, 2015



OKLAHOMA CITY (AP) — A power supplier for 42 municipal electric systems across Oklahoma has signed a purchase agreement to buy about 150 megawatts of wind-powered electricity from a wind farm in northern Oklahoma.


Oklahoma Municipal Power Authority announced the signing Monday with Apex Clean Energy subsidiary Grant Plains Wind, LLC.


Grant Plains is a wind farm in Grant County in north-central Oklahoma that is expected to come online next year.


OMPA general manager David Osburn says the agreement gives it the opportunity to increase its wind power from 12 percent to 17 percent of its overall portfolio.


The company also provides power generated from hydro, landfill gas, natural gas and coal from plants in Oklahoma, Texas, Louisiana and Arkansas.




Municipal electric supplier announces deal for wind energy
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Saturday, 12 September 2015

LA police, city vehicles go green with 160 new electric cars

The sounds of city vehicles on Los Angeles streets are about to get a bit quieter.


Mayor Eric Garcetti announced Friday the city will least 160 pure battery electric vehicles, which reduce greenhouse emissions and also make less noise.


The Los Angeles Police Department will use 100 of the vehicles, while the fire department, general services and water and power department will lease the remaining 60. More than 100 plug-in hybrid electric vehicles will also be acquired.


Garcetti says the new vehicles will make Los Angeles home to the largest city-owned fleet of pure battery electric cars in the country.


General Manager Marcie Edwards with the LADWP says the vehicles include plug-in hybrid trucks which are friendlier to neighborhoods because they are better for air quality and also quieter.



LA police, city vehicles go green with 160 new electric cars
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Wednesday, 3 June 2015

Great River Energy promotes 'wind energy' for electric car owners

Great River Energy on Thursday unveiled a program that ties the owners of electric vehicles to the wind power created by the utility.


In actuality, there’s no way for utilities to direct electricity from a specific source — whether fossil fuel like coal or a renewable like solar or wind — to a specific consumer. All supplies of power end up on a grid that disperses electricity widely.


However, the Maple Grove-based utility is using the “currency” it gets from compliance with state mandates for generation of non-fossil fuel power, called renewable energy certificates, as a kind of guarantee for an electric vehicle owner.


Under Great River Energy’s Revolt program, owners of plug-in electric vehicles or plug-in electric hybrid vehicles who are in its service area can apply for the guarantee that the electricity being used to power up their car is generated by wind.


The company will take certificates it has earned by generating wind power, and retire them based on the consumption of the vehicle owner instead of either keeping them or trading them with utilities that don’t generate as much renewable energy.


Great River Energy supplies power to 28 co-ops with more than 650,000 customers throughout Minnesota. Fifteen percent of the power that the utility generates or purchases each year is from wind.


“One of the reasons many people would choose to drive an electric vehicle is because of the green effect,” said David Ranallo, program manager for Great River Energy. “This is a way to promise a customer that wants to drive an electric vehicle for that reason that there are virtually zero emissions tied up in their source.”


The utility will not charge any additional fee for participation in the program, he said. An earlier program aimed at assuring that electricity for homes or farms comes from wind carried a slight premium to Great River Energy’s usual rates.


About 5 percent of new cars sold in Minnesota are hybrids or electric-powered. The utility’s program only covers plug-in cars, which make up a smaller portion of sales than the hybrid cars that don’t plug in.


 


 



Great River Energy promotes "wind energy" for electric car owners
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Wednesday, 18 March 2015

Energy costs are low but electric bills aren't

PhotoThe National Association of Homebuilders recently studied the consumer costs of owning a home. The biggest, far and away, was paying the monthly electric bill.


In every state electric utilities are regulated, but even so the rates consumers pay to keep the lights on and, in some cases heat and cool their homes, has been going up. Because different states have different ways of regulating utilities, the average monthly electric bill can vary widely, depending on where you live.


Outside of Alaska and Hawaii, the states with the highest average monthly bill are located in the west south central U.S. and include Arkansas, Louisiana, Oklahoma, and Texas. The average monthly electric bill in that region was $126.75 in 2013, according to the Energy Information Administration (EIA).


In the Pacific region, made up of California, Oregon, and Washington, the average bill is the lowest in the U.S. – $90.84. The state with the highest average monthly electric bill was Hawaii at $190.36 or nearly 2.5 times the average electric bill in New Mexico, which was the lowest in 2013 at $76.56.


Not all energy is getting cheaper


It may seem counter-intuitive for consumers, but at a time when they are paying sharply reduced prices for gasoline to power their cars and trucks, they are paying more to their utility for electricity. In fact, the EIA stats show residential consumers are paying more for electricity that businesses.


The average retail price paid by residential consumers in 2013 was 12.13 cents/kWh. The average retail price paid by commercial consumers was 10.31 cents/kWh while industrial consumers paid 6.88 cents/kWh.


While an overabundance of oil is mostly responsible for driving down the price of gasoline at the pump, electricity “supplies” are not increasing nearly as fast.


As we reported last week, U.S. utilities are projected to add 20 gigawatts (GW) of generating capacity to the power grid this year but are expected to remove 16 GW of capacity – mostly coal generating plants. That leaves a net gain of only 4 GW.


Much of the new capacity is being generated through alternative energy sources, most notably wind. But EIA points out not all power sources deliver the same bang for the buck.


“Because different types of generating capacity have very different utilization rates, with nuclear plants and natural gas combined-cycle generators having utilization factors three to five times those of wind and solar generators, capacity measures alone do not directly show how much generation is actually provided by new capacity of each type,” EIA said in a report.


What to do


For consumers who have endured a bitterly cold winter and look forward to higher air conditioning bills in the months ahead, conservation measures are the best way to keep electric bills in check.


If you have an electric water heater, lower the temperature. Most homes heat water at higher than necessary temperatures, requiring additional electricity to maintain that level.


The Environmental Protection Agency (EPA) estimates a water heater set at 140 degrees or hotter can waste more than $60 in energy costs were year.


Change your HVAC air filter on a regular basis. If possible, replace the disposable filter with a reusable one. When filters fill up with dirt and lint it increases the work load on the air handler, using more electricity.


If your appliances are old, consider an update. New appliances are much more energy efficient. If you are going to eventually have to replace them, doing it sooner rather than later will start saving on your monthly electric bill.


A programmable thermostat can quickly pay for itself. By raising the home’s temperature during the hours no one is home and then restoring the comfort level just before the family is scheduled to return, a programmable thermostat can dramatically trim electricity costs.



Energy costs are low but electric bills aren"t
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Monday, 9 March 2015

Local power company warns consumers about higher electric bills

electric


HAMPTON S.C. (WJCL) — As a result of a cold February, Palmetto Electric is alerting consumers to the effects of the cooler weather on energy consumption. Palmetto Electric services Hampton, Beaufort and Jasper counties.  “With the cold temperatures comes increased usage and higher electric bills,” said Berl Davis, president and CEO of the utility.


Palmetto Electric saw a significant increase in both peak demand and energy usage in February 2015 compared to February 2014.  “Peak demand increased by over 23 percent and energy sales were up by 22 percent,” according to Davis.  February 2015 was 57 percent colder than February 2014 and 52 percent colder than normal for the month based on local weather data.


To help offset the increases caused by cold weather Palmetto Electric recommends a thermostat setting of 68 degrees in the winter.  For every degree above this setting consumers will add approximately 4-8 percent to their heating cost.  “Consumers should be especially cautious about not switching their thermostat to the ‘Emergency Heat’ setting as this will cause usage to skyrocket,” emphasized Davis. Each winter we determine that many high bills result from consumers mistakenly switching from the “Heat” setting to “Emergency Heat.”


Other energy saving tips include:


  • Set thermostats at 55 degrees in a home that is vacant for a week or longer.

  • Caulk around all doors and windows. Loose or cracked caulking should be removed or replaced.

  • Weather-stripping is a real key to preventing heat loss. Doors and windows should be sealed to prevent drafts. Door bottoms are also culprits; install inexpensive “sweeps” on doors to keep out the cold. Don’t forget to weather-strip your attic access.

  • Central heating systems should be given an annual cleaning and tune-up by a qualified technician.

  • Keep air filters clean. The air filter of a central heating system should be replaced once a month during the heating season if a disposable filter is used.

  • Have your chimney checked by a qualified chimney sweep and check your fireplace damper to be sure it opens and closes properly.

Consumers can view more information on ways to help keep electric bills down during cold weather by visiting Palmetto Electric’s website at www.palmetto.coop and click Together We Save.



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Local power company warns consumers about higher electric bills
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Sunday, 7 December 2014

Arkansas electric co-op adds wind


LITTLE ROCK, Ark. (AP) — A southeastern Oklahoma wind farm is providing Arkansas Electric Cooperative Corporation with 150 megawatts of potential wind energy through a long-term power purchase agreement.


The wind power is being generated by the Origin Wind Farm in Murray and Carter Counties in southeast Oklahoma. The expected annual output from the 75 turbines on the 17,600 acre farm is 650,000 megawatt-hours, about enough energy to serve 50,000 homes.


AECC has a long-term commitment to generation diversity. It is one of the top generation and transmission cooperatives in the nation with assets of more than $1.6 billion. AECC owns three natural gas/oil plants, four natural gas-only plants, co-owns portions of four low-cost coal-plants and three hydroelectric stations.




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Sunday, 15 June 2014

Solar Sidewinder - Insertable Heat Exchanger for an Electric Water Heater

ABOUT THE PRODUCT: The Solar Sidewinder Heating Element (Patent Pending) is a screw-in heat exchanger for electric water heaters. It is a component part of a closed-loop solar water heating system. It is designed to create a hybrid solar-electric hot water tank (or an auxiliary solar hot water tank) out of an existing electric water heater. This product does not work with gas fired water heaters.

TECHNICAL SPECS: Single wall dielectric design optimized for steel tanks; Max Heat Transfer Fluid Operating Temperature: 200 F @ 20 PSI or 180 F @ 100PSI; Must be used with non-toxic heat transfer fluid such as water mixed with propylene glycol. Fits all 1″ female NPT/FPT heating element receptacles; Can be used with a flange adapter to fit flange type heating element receptacles; Standard I/O Plumbing Fittings: Input ½” Male NPT/MPT, Output ½” Female NPT/FPT; Built to last with lead free metals and heat resistant CPVC; Requires Teflon thread tape for a water tight installation and seal (Not Included). Each Sidewinder can be used with a solar water array up to 13 square feet of insulated solar surface area in climates with high solar insolation. Solar surface area is limited by the probability of overheating the CPVC to near or above 200 F.

HEATING CAPACITY: The US Dept. of Energy (DOE) suggests sizing a solar water heater to 1.5 gallons of water for every square foot of flat plate solar collector. Each Sidewinder is recommended to heat up to 20 gallons of water when using the recommended maximum of 13 sq ft of insulated flat plate solar collectors. This product will not achieve desired results when used with non-insulated polymer based solar arrays/collectors (such as solar pool/spa heaters) due to the collector’s inability to reach or maintain temperatures above 130F. In addition, large energy losses may occur when heated fluid lines are not well insulated. For tested and proven results, use with Heliatos products.


Product Features


  • Replaces screw-in electric heating element(s) to create a Solar Water Heater

  • Fits nearly all U.S. models of Electric Water Heaters that are 18″ or wider

  • Can be used with a flange adapter to fit flange-type heating element receptacles

  • For more detailed and technical information, visit www.solarsidewinder.com

  • For tested and proven results, use with Heliatos products

Click Here For More Information



Solar Sidewinder - Insertable Heat Exchanger for an Electric Water Heater
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Monday, 2 June 2014

New silent wind turbine could generate half of a homes electric needs, says company The ...



Megan Treacy of Treehugger reports Silent rooftop wind turbines could generate half of a household’s energy needs


A Dutch company cased The Archimedes has developed a small, highly efficient, and silent rooftop wind energy generator called the Liam1, which it claims could generate half the power a typical house would need, and which they say would be ideal for combining with solar rooftop PV panels.



The company states that the Liam F1 turbine could generate 1,500 kWh of energy at wind speeds of 5m/s, enough to cover half of an average household’s energy use. … When used in combination with rooftop solar panels, a house could run off grid. “When there is wind you use the energy produced by the wind turbine; when the sun is shining you use the solar cells to produce the energy,” The Archimedes CEO Richard Ruijtenbeek said.


The Liam’s blades are shaped like a Nautilus shell. The design allows it to point into the wind to capture the most amount of energy, while also producing very little sound. The inventor of the turbine Marinus Mieremet says that the power output is 80 percent of the theoretical maximum energy that could be harnessed from the wind.


“Generally speaking, there is a difference in pressure in front and behind of the rotor blades of a windmill. However, this is not the case with the Liam F1. The difference in pressure is created by the spatial figure in the spiral blade. This results in a much better performance. Even when the wind is blowing at an angle of 60 degrees into the rotor, it will start to spin. We do not require expensive software: because of its conical shape, the wind turbine yaws itself automatically into the optimal wind direction. Just like a wind vane. And because the wind turbine encounters minimal resistance, he is virtually silent,” said Mieremet.



The Archimedes is now working on an even smaller turbine that could fit on top of lamposts, boats, and smaller applications.


With the announcement today of the EPA’s proposed new standards for reducing carbon emissions, we have all the more reason to look to renewable energy options to supply our energy needs.



Here is a link to the embedded video below that the company offers to explain the history of the Liam1 turbine. The Archimedes windmill movie ENG high quality






New silent wind turbine could generate half of a homes electric needs, says company The ...
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Friday, 28 February 2014

Solar Electric Handbook: Photovoltaic Fundamentals and Applications - Textbook / eBook Bundle

Bookstores or instructors purchasing this textbook for a technical solar training program, please call SEI directly at 970-963-8855 x102 for discounted bulk rates.

Approved by the NABCEP PV Installation Professional Exam Committee as a Primary Reference, this textbook / eBook bundle is the leading adopted textbook by solar training programs all over the United States and internationally. Solar Energy International, the author of Solar Electric Handbook: Photovoltaic Fundamentals and Applications was selected by the Department of Energy to be part of the Solar Instructors Training Network. The curriculum used to train these solar professionals includes the technical resources found in this textbook / ebook bundle. Get access to the same technical resources the Pros use with SEI’s Solar Electric Handbook: Photovoltaic Fundamentals and Applications!

Since 1991, Solar Energy International (SEI) has been dedicated to renewable energy education providing in-person instruction, hand-on labs, and online training. Now the solar industry is growing like never before, and SEI remains the number one choice for information and education, both for those new to the field and industry veterans who wish to further their knowledge.

Completely updated, printed in full color, and loaded with photos of real-world installations, interviews with industry insiders, and extensive examples, the Solar Electric Handbook: Photovoltaic Fundamentals is an in-depth exploration of the core concepts necessary to design and install photovoltaic (solar electric) systems, including: The industry: Renewable energy, solar electricity, the business and finance of solar, and opportunities in the field How photovoltaics (PV) work: Introduction to electricity and the photovoltaic effect, quantifying the solar resource, and siting arrays Designing systems: Module and inverter selection and integration for grid-direct systems System sizing: Accurate estimation of energy production to meet customer expectations for grid-direct systems Electrical components: Requirements for conductors, disconnects, and overcurrent protection Installing systems: Mounting options, roof work, and safety considerations Commissioning: Equipment and procedures for proper system installation and commissioning

Table of Contents

Unit 1: Overview of Renewable Energy and the Solar Industry
Chapter 1: The Case for Renewable Energy
Chapter 2: An Overview of Photovoltaics and the Solar Industry

Unit 2: Electricity and Components
Chapter 3: Basics of Electricity
Chapter 4: Components

Unit 3: Modules, Series and Parallel, and Meters
Chapter 5: Photovoltaic (PV) Modules
Chapter 6: Series and Parallel Connections with Modules
Chapter 7: Testing Modules with a Multimeter

Unit 4: Solar Site Analysis and Mounting
Chapter 8: Solar Site Analysis
Chapter 9: Mounting
Chapter 10: Roofing Systems

Unit 5: Grid-Direct System Sizing
Chapter 11: Implementing Efficiency
Chapter 12: Grid-Direct Inverters
Chapter 13: Grid-Direct System Sizing

Unit 6: Grounding, Wiring, and Overcurrent Protection
Chapter 14: Grounding
Chapter 15: Wiring
Chapter 16: Disconnects, Overcurrent Protection, and Series Fusing
Chapter 17: Basics of Service Panel Connections

Unit 7: Safely Installing and Commissioning Grid-Direct Systems
Chapter 18: Jobsite Safety Chapter 19: Safe Procedures for Installation and Commissioning

Unit 8: Battery-Based Systems
Chapter 20: Battery-Based Systems Overview
Chapter 21: Introduction to Battery-Based System Sizing


Click Here For More Information



Solar Electric Handbook: Photovoltaic Fundamentals and Applications - Textbook / eBook Bundle
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Wednesday, 26 February 2014

Solar Electricity Handbook - 2012 Edition: A Simple Practical Guide to Solar Energy - Designing and Installing Photovoltaic Solar Electric Systems

The Solar Electricity Handbook is a practical and straightforward guide to using electric solar panels. Assuming no previous knowledge of solar panels, the book explains how solar panels work, how they can be used and explains the steps you need to take to successfully design and install a solar electric system from scratch using photovoltaic solar panels.


This is an up to date 2012 Edition of the book with even more diagrams, details and up-to-the-minute information on this exciting technology.


Accompanying this book is a solar resource website containing lots of useful information, lists of suppliers and on-line solar energy calculators that will simplify the cost analysis and design processes.


Why buy the Solar Electricity Handbook?


  • The Handbook is a simple, practical guide to using electric photovoltaic panels.

  • The book is suitable for enthusiastic novices, students and building professionals.

  • Clear examples, diagrams and example projects are given to demonstrate the true capabilities of these systems.

  • The Handbook is updated yearly, providing an up-to-date reference for anyone planning to use electric photovoltaic technology.

  • It is the most comprehensive book on solar electric systems available today.

  • It is backed up by the most powerful online calculator tools available, to make your design and calculations as straightforward as possible.

  • With comprehensive detail in the book for all around the world, the Handbook provides you with information that is relevant to you and your project – where ever you live.

Product Features


  • Used Book in Good Condition

Click Here For More Information



Solar Electricity Handbook - 2012 Edition: A Simple Practical Guide to Solar Energy - Designing and Installing Photovoltaic Solar Electric Systems
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Monday, 17 February 2014

Solar Electricity Handbook - 2014 Edition: A Simple Practical Guide to Solar Energy - Designing and Installing Photovoltaic Solar Electric Systems

Solar electricity is a wonderful concept. Take free power from the sun and use it to power electrical equipment. No ongoing electricity bills, no reliance on an electricity socket. ‘Free’ electricity that does not harm the planet. Of course, it is not as simple as that. Yet generating electricity from sunlight alone is a powerful resource with applications and benefits throughout the world. But how does it work? What is it suitable for? How much does it cost? How do I install it? This best selling internet-linked book answers all these questions and shows you how to use the power of the sun to generate electricity yourself. This sixth edition includes more information, with new and improved chapters for grid-tie systems and brings the book right up to date with the latest technology and information. In short, the Solar Electricity Handbook is a practical and straightforward guide to using photovoltaic solar panels. Assuming no previous knowledge, the book explains how solar panels work, how they can be used and explains the steps you need to take to successfully design and install a solar photovoltaic system from scratch. Accompanying this book is a solar resource website containing lots of useful information, lists of suppliers and on-line solar energy calculators that will simplify the cost analysis and design processes.


Click Here For More Information



Solar Electricity Handbook - 2014 Edition: A Simple Practical Guide to Solar Energy - Designing and Installing Photovoltaic Solar Electric Systems
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