Home Power 40, April & May 1994
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THE HANDS-ON JOURNAL OF HOME-MADE POWER ISSUE #40 April / May 1994 $3.50 U.S. $4.95 CAN. Display until June 1 Introducing the LINK 2000 Integrated Battery Monitoring and Inverter Control QUESTION: Can the LINK 2000 be used as a battery monitor only? ANSWER: YES! The LINK 2000 monitors the battery and sources independently of the inverter. Consider it an “Inverter ready monitor/control system” compatible with the Freedon Series of U.L. listed Residential inverters. Control Monitoring Green LED indicates on. Green LED INVERTER may be turned indicates selection On or Off independently Selects BATTERY #1. from charger. RESET A hrs to zero. Selects BATTERY #2. IDLE MODE sets load sensitivity while idling, expressed in Watts. TYPE # sets battery chemistry: Range = 0W, 4W, 6W, 15W. 1=Liquid, 2=Gel CHARGER may be turned Green LED indicates On or Off independently parameter displayed. from inverter. CHARGE EFFICIENCY PWR SHARE sets the AC current FACTOR of selected limit at which the battery charge battery displayed as rate is reduced to avoid percentage. overloading limited AC sources. AMBIENT TEMP sets default Expressed in Amps. Range = 10A, Charging Voltage for selected 15A, 20A, 30A, 50A temperature range. Default value = 70°F. Range 30–120°F in 10° increments SET UP allows the selection of various functions and values. AMP-HOURS consumed from selected Press for 5 seconds to enable Set Up. The Green LED battery displayed as a negative number. will flash at 1 second intervals. Then press the Over-charge A hrs displayed as positive function to be set up. The present value will be displayed. After 3 seconds, with the button pressed, number. the display will began scrolling. When the desired BATT CAP sets battery capacity. value appears, release the button. Default value = 200 Ahrs. Range 20–2000 Ahrs Flashing Green LED indicates Set Up in 20 Ahr increments. mode. The LED of the function being set AMPS charging into the selected battery are up also flashes. displayed as a positive number. Discharge Amps displayed as a negative number. Range ± 500 Amps with 0.1A resolution below 27A and 1.0A START EQUALIZE function of charger by resolution above 27A. pressing SET UP button for 5 seconds followed by CHARGED % sets the current that the charge rate must fall simultaneously pressing the VOLTS and A hrs below for the battery to be considered full. Default value = 2% buttons. of battery capacity, (Ex: 4 Amps = 200 X 2%). Range 1–7% in Red CHARGE LED flashes when in equalize mode. 1% increments. VOLTAGE of selected battery is displayed. Range 8.5–50 STATUS indicators for AC power and charge cycle state. Volts with 0.05V resolution. CHARGED V sets the Voltage the battery must be above to be considered full. Default value = 13.2V or 26.4V Sets default automatically for 12V or 24V systems. Range 13–40V in 0.1V increments. AC IN: Green LED on when AC is present. Compatible with CHARGE: Red LED on when charger is in bulk charge mode. Heart Interface Inverter models: Flashes Red when charger is in Equalize mode. Freedom 10 ACCEPT: Orange LED on when charger is in Acceptance mode. Freedom 20 FLOAT: Green LED on when charger is in Float mode. Freedom 25 The LINK 2000 is a joint venture of two Valley Forge companies: 811 1st Ave. S. Kent, WA 98032 (206) 859-0640 Mfg. by Cruising Equipment Co. 6315 Seaview Ave. NW Seattle, WA 98107 (206) 782-8100 HOME POWER THE HANDS-ON JOURNAL OF HOME-MADE POWER Issue #40 April / May 1994 Features 50 EV Happenings Michael Hackleman 6 Two in Maine describes events in the Chris LaForge travels East electric vehicle arena. How to install solar systems for do EVs do in crash tests? two couples. Learn why The photos tell all.... power sheds are the answer One Step Closer for homes in the shade! 54 Denet Lewis shares his experiences designing and It’s How Cold? 14 racing electric vehicles from Linda Wallin tells of living on childhood through college. solar power in Montana and making improvements to a 64 Book Review: Convert It cold Wattsun tracker. Richard Perez reviews Michael Brown’s book on Burning Ring of Fire 18 electric vehicle conversions. Christian Brunner writes about RVing on solar power. 66 Electric Vehicle Chargers Shari Prange describes Getting Active About 24 electric vehicle chargers. Passive Solar Which one is for you? Emilis Prelgauskas explains using natural forces to cool homes in arid climates. Homebrew 28 The Fire Within 40 Washing Machines Richard Perez chronicles the Bruce Johnson explains how development of solar to make a wringer washer concentration and explains run on DC power. how it works. See why PV concentrators are now the cheapest solar electricity going! Things that Work! 44 The Folk Ram Pump GoPower Michael Welch tests the Folk Ram Pump. Learn how 58 High School Electrathon water power pumps water! Racing Alan Kearney talks about 92 DC Halogen Light building and racing a small Therese Peffer tests a electric vehicle in his auto 12 VDC quartz halogen mechanics class. light. 20 Watts for $14. Cover: A Horlacher Sport Two electric vehicle and wind turbines in Switzerland. Story on page 51. Fundamentals Columns Access and Info 32 Computers, Printers and 94 Code Corner Access Data Inverters John Wiles explains battery Home Power Magazine Elliott S. Frank explains how safety. POB 520, Ashland, OR 97520 computer power supplies USA differ and how they run off 98 Ask NREL Editorial and Advertising: modified sinewave inverters. A breakthrough in low cost 916-475-3179 voice and FAX efficient PV technology. Subscriptions and Back Issues: 36 Solar Heating Basics 916-475-0830 VISA / MC Tom Snyder explains how 100 Power Politics Computer BBS: 707-822-8640 solar collectors work and Michael Welch on utilities, Paper and Ink Data how to use off-the-shelf nukes, & the energy budget. Cover paper is 50% recycled (10% materials to make them. postconsumer and 40% preconsumer) 104 Back to the Basics Recovery Gloss from S.D. Warren Paper DC to DC Converters Company. 70 Therese Peffer runs a stereo James Van Bokkelen runs Interior paper is recycled (30% on battery & solar power. postconsumer) Pentair PC-30 Gloss his 24 Volt pump from his 48 Chlorine Free from Niagara of Wisconsin Volt battery. 107 IPPP Paper Corp. Independent Photovoltaic Printed using low VOC vegetable based Mail Order Shoes inks. 72 Power Providers unite! Richard Perez discusses the Printed by human side of system 108 Home & Heart St. Croix Press, Inc., design. You don’t have to be Kathleen Jarschke-Schultze New Richmond, Wisconsin satisfied with Cabin System cooks on her efficient range. Legal #6 anymore! Home Power (ISSN 1050-2416) is 113 The Wizard speaks... published bi-monthly for $15 per year at 78 Water Pumping for the P.O. Box 520, Ashland, OR 97520. on solar hydrogen. Independent Home International surface subscription for $20 U.S. Second class postage paid at Windy Dankoff leads us Ashland, OR and at additional mailing through choosing a water Regulars offices. POSTMASTER send address corrections to Home Power, P.O. Box 520, pump: ac vs. DC. Ashland, OR 97520. 4 From Us to You Copyright ©1994 Home Power, Inc. 82 More on Methane 80 HP’s Subscription form All rights reserved. Contents may not be Al Rutan describes reprinted or otherwise reproduced without improvements to his 81 Home Power’s Biz Page written permission. methane digester. While Home Power Magazine strives for 110 Happenings — RE events clarity and accuracy, we assume no Site Analysis for Wind responsibility or liability for the usage of 86 this information. Generators 114 Letters and Q&A Mick Sagrillo shows how to estimate wind speed at your 125 Micro Ads location. Index to Advertisers 128 Recycled Paper Recyclable Paper People Christian Brunner Carr Clifton Sam Coleman Windy Dankoff Elliott S. Frank Chris Greacen Michael Hackleman Kathleen Jarschke-Schultze Bruce Johnson Alan Kearney Stan Krute Christopher LaForge Denet Lewis Don Loweburg Therese Peffer Karen Perez Richard Perez Shari Prange Emilis Prelgauskas Al Rutan Mick Sagrillo Bob-O Schultze Tom Snyder Byron Stafford James Van Bokkelen Linda Wallin-Smith Michael Welch Flowers in the Spring John Wiles Every year Spring amazes me. Everything starts growing “ Think about it…” anew. This issue of Home Power celebrates renewable energy’s spring — a time for new ideas and new devices. And “...But the truth is all life is spring seems to be happening everywhere for RE. A German one life. There is only one company is marketing hydrogen hydride/ fuel cell systems. This game in progress. There is one spring sprouts a bumper crop of new wind generators. PV race, many different shades....Truth is truth. If you modules, made in Australia, are now finding homes here in hurt someone, you hurt self. If America. Why RE is sprouting everywhere! you help someone, you help Maybe an idea obtains enough veracity to suddenly become self. Blood and bone is in all apparent to everyone, everywhere. Maybe renewable energy’s people. It’s the heart and spring has finally arrived and we can enjoy its flowers. intent that different.” Richard Perez for the entire HP Crew The Real People Mutant Message Downunder 4 Home Power #40 • April / May 1994 Solec full page black and white on negative this is page five Systems A few years back, when Amy and I started working in the renewable energy field, Paul Wilson told us we’d have to get over there some day and build him a system. In the interim his original house burned to the ground (with notable fireworks) so a new one was in order.