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Electra One, a Single-Seat Electric Airplane, Wins the Lindbergh Electric Aircraft Prize
Written by Ulrich Bonne   
Monday, 08 August 2011 19:10

Elektra-One

Electra One a single seat electric airplane wins at airshow.

Elektra One performed a demo flight during the EAA AirVenture 2011 show in Oshkosh on Saturday, July 30. Elektra One was designed by Calin Gologan, PC-Aero, Germany. The 1-seat electric aircraft is able to fly with battery-power for up to 4 hours, for a range of 500 km. At 1,400 propeller RPM at cruising altitudes, Elektra One is nearly silent. The plane weighs 440 pounds, including battery, and can carry a payload of 220 pounds, including pilot. Elektra One flies consuming only 6 kW, with zero CO2-emissions. If small electric aircraft can fly, I think scaling up to large aircraft should be easy, technically and economically.

In combination with a Solar Hangar (SunAirport) - sponsored by SolarWorld, one of the biggest solar panel companies in the world - their goal is to combine energy efficiency, low noise and zero emission with low operating costs. See more at http://www.pc-aero.de/

The Elektra One made its maiden flight in March in Augsburg, Germany, where Gologan’s vision of marrying the aircraft with a solar-charging hangar was conceptually demonstrated. PC Aero will begin taking orders for the aircraft in Europe and the U.S. in 2012. Gologan intends for a complete system – solar-equipped airplane combined with a hangar – to be priced around $145,000, or 100,000 euro.

SolarWorld’s central business activity is selling quality modules into the installation and distribution trades and crystalline wafers to the international solar cell industry. SolarWorld is the largest U.S. manufacturer of solar panels for more than 35 years. SolarWorld and Germany’s PC Aero are working together to pioneer the world’s first comparatively affordable electric aircraft system complete with solar-equipped aircraft and solar-charging hangar.

 
Long-Term Electricity and Fuel Strategy
Written by Ulrich Bonne, Kailua-Kona, Hawaii, ulrichbonne@msn.com   
Friday, 06 May 2011 20:13
Abstract -- Assuming that we will phase-out importing oil in 10-20 years, we asked ourselves how much fuel to produce locally from clean electricity or bio-mass, and estimated the involved cost of alternatives. 
      Based on comparing such alternatives, we conclude that our long-term energy (electricity and fuel) security and independence strategy should be install as many clean and lowest-cost electricity generators as possible, but, besides feeding the grid system, electricity should be used only to either:
1.      Directly charge EVs and E-boats or
2.      Directly charge emergency or long-term (months) electricity storage systems (batteries, pumped hydro, compressed air and fuels), but
3.      Limit fuel production for emergency road and marine transportation; regular jet transportation; and for emergency generators, but certainly not for CVs to continue to operate with today’s IC engines.
 (To see a full pdf document, click |here|.

           This has implications on how much synthetic fuel to produce. For Hawaii County, two to three 10-15 MGGE/y (synthetic or bio-) fuel plants should take care of Hawaii County’s foreseeable jet fuel needs***. The remaining added generator investment for this County to replace today’s 120-150 MGGE/y of fuel for CVs, would then decrease from ~1200 MW(average) clean generators, to 120 MW(average) to simply and more efficiently charge EVs, after over 95% of all vehicles convert to EVs in the next 15-20 years. This time fits well with the needed ~10-year time to study, get permits, design and install 10-15 MGGE/y plants, after which they would produce for another 20-25 years, while the produced fuels are certified for aviation use, and cars and boats phase out of hydrocarbon fuels and into battery-powered equipment
*** Similarly, 150-200 MGGE/y should meet the needs for the State of Hawaii, rather then having to replace the total amount of ~750 MGGE/y consumed today.
 
Questions -- With such a strategy, one might do well to be prepared to answer questions like these:
1.       How can one expect to find customers willing to drive EVs with only ~100 miles with one charge? A.: Over the next 10-20 years, that 100-mile range is likely to expand to 300 or 400 miles, as battery technology advances, battery costs drop and (most importantly) also car weight drops, thanks to the use of lighter composites. Think of the 2500 MPGs (60-80 miles/kWh) achieved by cars in the 2011 Shell EcoMarathon[2]; we would only need 5-10 kWh batteries (not 40 kWh as in the Tesla) to achieve a 350-mile range.
2.      Why bother with synthetic H2 via electrolysis, if we could simply capture the gas coming out of our land-fills, which is now just wasted and flared? A.: The amount we could draw from land-fills would only be like a drop in a big bucket. On top of that, it may also cost more to purify and make H2 from it than starting with clean water.
3.      Is it realistic to assume that EVs and PHEVs will increase market share in Hawaii, in view of their high cost, small range and long-time to re-charge? A.: As mentioned above and demonstrated with the cars in the 2011 Shell EcoMarathon[2] and the huge MPG savings with lighter cars[3], we expect that while the cost of EVs comes down, their miles/kWh will increase due to weight reduction and the charging time will also come down due to smaller batteries and improved technology. Boat mileage might also improve as more light-weight materials are used, but may take more time to change.
 
Acknowledgments – The author is most grateful for the encouragement and many helpful discussions with Guy Toyama, Arne Laven, Chester Lowry and John Holbrook, without which this paper would not have been conceived and written.
 
Contribution of Batteries to the Economics of PV Systems
Written by Ulrich Bonne, Kailua-Kona, HI, ulrichbonne@msn.com   
Sunday, 12 September 2010 16:38
      Batteries are readily available for use as a means to even out the variable output of clean energy sources powered by sun, wind or ocean, and to provide power when the grid goes down, after a quick switch to “off-grid” operation. But one wonders about the proper size of such a battery, which clearly would depend on home load, its relation to the energy output of a PV system, with or w/o an EV or PHEV, the day-to-day variability of available sun and PV energy, and of loads; how battery size influences the annual NEM (Net Energy Metering) dollar balance with the utility or positively contributes to grid voltage stability, and last-not-least the economic benefits of permanent off- vs. on-grid operation of such a small but about 2x oversized 2-kW PV system.
      The over 300-days of recorded daily PV output data were the basis of this analysis. The data not only show that the PV output cycles are over 300 days in length, but that they may not even follow the expected seasonal variations expected from the sun's elevation. 
      To see the data and read the full paper, click here.
 
Hawaii Energy Topics, Data and & Documents
Written by Guy Toyama and Ulrich Bonne   
Thursday, 02 September 2010 19:09
To browse through all listed documents posted on Hawaii energy topics, please go to the Index at http://www.energyfuturehawaii.org/files/ or simply 
Read more...
 
An Energy-Neutral Residence in Oahu, Hawaii
Written by Bill Brooks, AIA, LEED AP, billb@ferrarochoi.com   
Tuesday, 31 August 2010 17:28

Our home in Kailua, on the island of O’ahu  is an energy-neutral residence.    The photovoltaic (PV) solar electric system and solar water heater (WH) system we installed produce all the energy we need. My wife and I have discovered that becoming an energy-neutral home in Hawai’i is a sound investment.

Read more...
 
Proposed Hawaii FIT Rates Discourages Installation of PV Systems below 3 kW
Written by Ulrich Bonne, Kailua-Kona, HI, ulrichbonne@msn.com   
Wednesday, 25 August 2010 17:17
This study shows that emerging legislation proposed with FIT rates of 0.218 and 0.274 $/kWh[1] (depending on applicable 35 and 24.5% State tax rebates, respectively) eliminates PV systems smaller than 3 kW from being economically viable, and is thus sadly and disappointingly discriminatory against average home PV systems, which rarely exceed 3 kW.
         To insure that our calculation method yields results consistent and comparable to those published by HECO, we verified that for small systems (7.04 $/W, used by HECO, which we inferred to correspond to a 2.83 kW PV size), our cost of PV-generated electricity of 26 ¢/kWh is close to HECO’s 25 ¢/kWh.   
           
To read the full pdf document, with Table and Graph, click here. Some key conclusions were:     
Read more...
 
Website Tools and Help
Written by Ulrich Bonne   
Saturday, 01 May 2010 19:06
-- Reminder to get full bullets into text -- use red print as reminder, which can be converted to black print after uploading. Highlight of text cannot be removed after uploading
-- Get text to wrap around image:
Click on "Insert/Edit Image" icon
Click on "Advanced"
Enter "Imageleft"or "Imageright" at "Stylesheet Classes" line (2nd from bottom)

-- Procedure to get pdf file loaded and available 17 Aug 2010:

1.  Highlight text to be linked
2.  Click on hyperlink icon
3.  Click on "Browse Server" if file not there yet, "Browse" to find file on your PC
4.  Upload and click on its file name. Then "OK" on new window
Another path: Up-load "pdf" icon to text: Go to "M_images" to find pdf image.
1.  Then click "Insert" to place in text,  alt; and click "Apply"
2.  Hyperlink this pdf image to server, to the browsed, (clicked on) uploaded file and "OK"
3.  See e.g.loaded file at e.g. http://www.energyfuturehawaii.org/files/TenantContacts-2010.pdf
-- Access to files in www.energyfuturehawaii.org/files -- Programs: FileZilla/Quickconnect/BlueBeach-etc/+/Files, Disconnect by click on Disc.Icon
-- Procedure to get Photogallery Images in Place from Folder -- Joe 1 May 2010
  1. Go to components
  2. Phoca Gallery
  3. Images
  4. Click Multiple Add Button (Located top right)
  5. Open correct folder (fish-market-apr-2010)
  6. Click the check box that selects all images. (very top box)
  7. Select the correct Category from the Category drop box. (If you do not see it go create it under categories from the main menu)
  8. When you hit Save from the top right. It will create all the images.
  9. Go view the images in the category.
 
Power Generation with High-Flying Kites, Sky Sails or Wings
Written by Ulrich Bonne, Kailua-Kona, HI, ulrichbonne@msn.com   
Friday, 30 April 2010 00:00
 
              High-altitude kites can be flown in higher elevations than wind-mills, where wind speeds, energy density and capacity factors are over 10x higher. This write-up attempts to present the fundamentals, development status and quantify the technical and economic benefits. Single kites are saving 10-35% fuel on 4 commercial freighters, each providing the equivalent of 1 MW of propulsion benefits; power plants of 13 and over 100 MW are being considered. From available data, this author estimates that electricity costs of 0.04 $/kWh with 10 MW plants appear possible. This cost is lower than present tariffs, even without subsidies.  
Read more...
 
Maximizing Clean Energy Economics within Present and Future Electric Utility Rate Rules
Written by Ulrich Bonne, Kailua-Kona, HI, ulrichbonne@msn.com, rev. 23 May 2010   
Sunday, 18 April 2010 20:12
 
           There are several factors influencing a business- or home-owner’s decision to install wind or solar PV (Photo-Voltaic or other. “clean” or “green” energy) generators, and making such investments attractive. Some of  factors or parameters influencing the economics are listed as inputs for the “Green Energy Return-on-Investment (ROI) Calculator”*[1]. Other factors such as noise (windmill rotation or humming of central inverters), safety are not. But the effect of escalation of fuel and electricity rates in future years should and will be added shortly. We here take a closer look at how the minimum monthly charge (MMC) on Net-Energy Metering (NEM) electricity bills detracts clean energy investments in Hawaii County. 
Read more...
 
Green Energy ROI and Electricity Cost Calculator
Written by Ulrich Bonne, Kailua-Kona, HI, ulrichbonne@msn.com, rev. 21 Oct. 2010   
Sunday, 21 March 2010 22:24
Overview -- This calculator is designed to output various forms of ROI (Return on Investment), payback time, cost savings, etc., resulting from installing green or “clean” electricity generators, such as solar PV (photo-voltaic), wind turbines and energy conservation measures (solar water heaters and energy-efficient appliances). But contrary to standard mortgage calculators, which start with a given term to pay back a bank loan, this calculator assumes that the generated average annual “clean” electricity reduces the electricity bill of the consumer or generator owner, and that this dollar amount, calculated for the first year, is equal to the “fixed,” annual loan-repayment thereafter.  
Read more...
 
Residential Wind Energy Application
Written by Sandy Babuka. Trehab Renewable Energy, Montrose, Pa. sbabuka@trehab.org   
Saturday, 20 March 2010 20:45

Aloha to all, let me introduce myself. I was scheduled to speak on February 27th, 2010, and as luck would have it – a Tsunami Warning came about…and thus our workshop was cancelled. I promised my daughters an adventure on the Big Island, and an adventure they got! The island was thankfully spared, the earth was quieted, and many of us have gotten back to wondering about wind energy, specifically residential or “small” wind. 

My presentation was intended to provide some general technical and economics background about the installation of residential wind turbines, with special consideration to the conditions on this Big Island, and to the potential benefits to its residents.

Read more...
 
HELCO Energy Services Advisory - March 2010
Written by Sue Gerrod, HELCO, susan.garrod@helcohi.com   
Tuesday, 09 March 2010 20:11
 
sue_garrod.jpgYou are probably aware of our "Blue Planet Foundation's Reliability Standards” report[1] filed recently in the Feed-in Tariff Docket with the Hawaii Public Utilities Commission. To be clear on where things stand right now:
Read more...
 
Nuclear Power for Hawaii?
Written by John Deveau, deveauj001@hawaii.rr.com, rev. 9 March '10   
Tuesday, 23 February 2010 00:07
altI do a presentation every Tuesday at the Natural Energy Laboratory of Hawaii for the Friends of NELHA that focuses on energy issues in Hawaii and the mainland.   Many of the guests who come to hear my presentation are from places outside of Hawaii and ask questions such as "why doesn't Hawaii have nuclear power plants?" and "would Thorium-based plants be safer than Uranium-based ones"?   Because of such questions, and because my background for many years has been in the nuclear power plant industry, I decided to write an article on this subject for the many readers of our newsletter.
 
First of all, one must look at what is the problem.  Presently, because Hawaii has no indigenous sources of energy such as oil, natural gas or coal, 90% of the electricity produced in the state is from imported oil making electricity prices nearly the highest in the nation. However, Hawaii has an ambitious plan to decrease the 90% of total oil-based energy (electricity generation, transportation, etc) to 30% by the year 2030.  One therefore wonders whether some form of nuclear power might help reach this goal?
Read more...
 
Solar PV Economics for Home, Industry & Government
Written by Ulrich Bonne, Kailua-Kona, ulrichbonne@msn.com, rev. 17 Apr. 2010   
Tuesday, 16 February 2010 23:52
Much information is available about the energy sustainability and independence benefits of PVs (solar Photo-Voltaics) but not much about the available economic resources to deploy them in our neighborhood. This write-up aims to show that:
(1) Borrowing non-government money for installation and operation of PVs is good business for the homeowner, the installer, utility, county, state, country and world locations with average peak sun hours over 15%, i.e. 0.15 x 24 = 3.6 hours per day, and
(2) The sooner we do this the better
Read more...
 
Efficient Electricity Use for Hawaiian Businesses
Written by Susan Garrod, HELCO Energy Services, susan.garrod@helcohi.com   
Sunday, 31 January 2010 12:50
 
altBusiness investments in energy-consuming equipment are critical components of revenue-generating operations, and therefore should be selected to perform at a competitive level of energy efficiency. Here are some suggestions for equipment, how to monitor energy use and its cost, and available rebates.
Read more...
 
Vermont PUC Rules on Interm FIT Rates for 2009
Written by Admin.; rev. 27 Feb. 2010   
Wednesday, 27 January 2010 14:00
 
Vermont's PUC (Public Utility Commision) has approved a FIT (Feed-in-Tariff) for solar PV (photovoltaic) rate that is over 2x the average rate for residential[1]
Read more...
 
Reliable Electricity Generation
Written by John Deveau   
Tuesday, 19 January 2010 10:24

John DeveauLow cost, reliable electrical generation is what all consumers want. This county needs a flexible generation system to meet our future needs. Currently 90% of electricity used in the state is supplied from oil. The State has mandated that we need to decrease our oil dependency to 30%, by the year 2030. To do this we need to use more Geothermal, Solar, Wave and Wind generation. 

The word reliable merits some discussion: 1) Utilities, nationwide, may prefer to have more small generating units, which present less of a challenge to the grid if one shuts down. This same option should be considered when planning new generation; and  2) The variability in energy output of solar and wind generators needs to be balanced via adequate storage or back-up fossil-based generators as discussed below.
 
Consider that solar generation peaks between ~8 AM, and ends ~4 PM. This is good in decreasing the oil fired base electric load, during this time frame. The daily base load peaks from ~4 PM thru ~10 PM, when we come home and turn electric components on. This peak in electric use is universal across our country; and costs the most per installed kilowatt (kW).  Typically the utility uses the generator that can most easily be output-modulated but may not be themost efficient generation equipment to supply this peak electric load. Why? Because the utility uses the most efficient generation equipment 24/7. The peak in our county is ~10%, more than the base load.  After 10 PM load drops significantly, which forces the electrical generating units to either back off generation or shutdown until early the next morning.

 

More than 35% of the county's electrical generation is from renewable sources including
Read more...
 
HELCO Energy Services Advisory - January 2010
Written by Sue Garrod, HELCO*   
Monday, 04 January 2010 14:00

sue_garrod.jpgHow is HELCO presently managing the integration of new Distributed Generation (e.g. from solar and wind) into the existing grid, while maintaining the expected reliable supply of electricity to all its customers? 

 
 
Read more...
 

 
Christmas Lighting Energy Calculations
Written by Administrator   
Saturday, 19 December 2009 09:21

Christmas lights create a festive mood for your home or business.  They can also help your business to be noticed and attract customers, especially during our long dark nights in Hawaii.  Interior lights create an inviting mood and memories for people to return.  The lighting can help improve visibility for your customers to see your products, or to read the menu.  In short, they may help to bring you new business, and repeat business, during this competitive time. 

Read more...
 
Study of a Newly Installed Home Solar PV System: Actual and Calculated Outputs
Written by Ulrich Bonne   
Sunday, 06 December 2009 14:00
 Kailua-Kona, HI, This e-mail address is being protected from spambots. You need JavaScript enabled to view it , rev. 23 May 2010

Ulrich. BonneThis past November '09 I had installed a 2.1-kW home PV system on my home in Kona and I wondered whether the actual output would meet or exceed expectations. I am happy to report that the actuals beat the calculated and predicted energy output by an average of 30%, despite November’s sun, VOG and cloud conditions in Kona!  Its total installed cost was 7.95 $/W. Below is a short description of that system.

Read more...
 
EPA: Greenhouse Gases Threaten Public Health and the Environment
Written by Administrator   
Sunday, 06 December 2009 14:00

 Science overwhelmingly shows greenhouse gas concentrations at unprecedented levels due to human activity

Read more...
 
HELCO Energy News – November 2009
Written by Sue Garrod, Energy Services, HELCO, Kailua-Kona, HI, susan.garrod@helcohi.com   
Monday, 16 November 2009 19:34

 

Sue GarrodHawaii Electric Light Company has been delivering power to the people of Hawaii Island since 1894.  Today, HELCO proudly services over 77,000 customers island-wide.

The power delivered to our customers has always come from many sources connected to our grid. 
Read more...
 
Hidden Health and Environmental Costs Of Energy Production and Consumption
Written by Administrator   
Monday, 26 October 2009 07:30

Report Examines Hidden Health and Environmental Costs Of Energy Production and Consumption In U.S.

Read more...
 
Can Hawaii County Really Be Energy Self-Sufficient?
Written by U.Bonne, ulrichbonne@msn.com, Kailua-Kona, Hawaii, rev. 6 Nov.’09   
Sunday, 18 October 2009 14:00

As Hawaii strives for renewable and sustainable electricity generation, this analysis found that potentially over 150% of our present electricity consumption may be generated via solar-PV on just 60-70% of our residential and commercial roof tops. 

Read more...
 



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