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4 The Electric Current May 2011

Contents +

PRESIDENT/PUBLISHERGlen Hobson - 205-733-1341SALES DEVELOPMENT MANAGERHank Underwood - 205-733-1343NATIONAL SALES MANAGERRick Harless - 205-733-1324CIRCULATION DIRECTOR/WEB DESIGNJacklyn HobsonCREATIVE DIRECTORDerek GaylardART DIRECTORDavid Todd

Executive and Advertising Offices2070 Valleydale Rd,Suite # 6 Hoover, AL 35244toll free: 866.981.4511phone: 205-733-1341fax: 205-733-1344www.theelectriccurrent.com

The Electric Current is distributed free to qualified sub-scribers. U.S. Postage paid at Birmingham, Alabama andadditional mailing offices.

The Electric Current is distributed to to qualified ownersand managers in the electrical industry. Publisher is not li-able for all content (including editorial and illustrationsprovided by advertisers) of advertisements published anddoes not accept responsibility for any claims made againstthe publisher. It is the advertiser’s or agency’s responsi-bility to obtain appropriate releases on any item or indi-viduals pictured in an advertisement. Reproduction ofthis magazine in whole or in part is prohibited withoutprior written permission from the publisher.

POSTMASTER: Send address changes toThe Electric Current 2070 Valleydale Rd.,Suite #6 Hoover, AL 35244

P R I N T E D I N T H E U S A

1806

06U.S. Government relies on AETto provide Solar mounting solutions for Military installation

188 Items Electricians Need to Consider When Going Solar26Making Use of Portable Video Inspection Tools in Underground Vaults

28Stiebel Eltron Thermal Solar Water Heating System

34Hyster Company Names Dealer of Distinction RecipientsRecipients honored with special celebration

36Advertiser Index

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U.S. GOVERNMENT

RELIESON AET

Feature Story +

to provide Solar mountingsolutions for Military installation

In February of 2010, AppliedEnergy Technologies (AET) receivedan inquiry, not unlike hundreds of others,about their stainless steel mounting sys-tem. The system (trademarked as Ray-portô) was identified by PV integratorand installer DRI as a potential candidatefor a large project located at the Navalbase in Pearl Harbor, Hawaii, that thecompany had recently been awarded bythe US Navy through a local Hawaiiandeveloper, Niking.

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Visit us at: www.aetenergy.com



for the buildings that would house the PVarrays. A proposal was required withinweeks. This call turned into a bit more ofa challenge than the normal project, saidAaron Faust, VP of Business Developmentat AET.Through layout and loading analysis,

along with design modifications to theRayportô Stainless Series Roof Ballast Sys-tem, AET was off and running to meet itspotential new customers’ requirements.

Following normal protocol, AET beganto discuss the common variables neededto be identified in order to bring a projectto life: panel type, panel angle, andweight limitations on the building, givenwind speed and height factors. Therewere three major requirements of themounting system. It needed to be stain-less steel, be able to hold the panels at a0-degree (horizontal) tilt, and meet theaggressive weight restrictions established

In less than three weeks, a joint site visitby DRI and AET was completed, layoutdrawings were assembled, loadinganalysis was complete, and the projectwas a go for AET.As the only stainless ballasted system

available on the market, the Rayportôturned out to be the right choice for DRIand the Navy. ìIn contrast to other bal-lasted racking systems in the industry, thestainless material provides advantages

Feature Story +

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In aluminum or standard steel, the an-odized or galvanized layer needs to bepenetrated in order to reach the conduc-tive raw material underneath. This is es-tablished by the use of surfacepenetrating fasteners, thus adding costthrough both component counts and in-

over typical anodized aluminum or gal-vanized steel, said Faust. Along with in-creased corrosion protection, groundingof the stainless steel system is big part ofthe appeal. Stainless steel is a conductor,and its surface does not need to be pen-etrated to bond components electrically.

creased assembly times on the job site.With the Rayportô mounting systemgrounding is made substantially easieron the job site; the racking only needsgrounding once every 20 rows. ìThe factthat Rayportô is linked through thecolumns allows the installer to use mini-mal grounding lugs and copper, thus tan-gibly saving time and money on theinstall, explained Faust.

Ease of ordering and installation are two

Ease of ordering and installationare two morebenefits of the Rayportô mounting system.

Feature Story +

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cated without any fabrication work. Nodrilling or cutting is required. The Ray-portô is also elevated off the roof, al-lowing water to pass under the system.In many cases it naturally accommodatesroof vents, conduit, and drains, mini-mizing the need to work around obsta-cles. This flexibility of the system adds toease of installation on non-uniform roofsurfaces.On the Pearl Harbor project one

more consideration was the addi-tional weight required to hold the bal-lasted system on the roof. Additionalbuilding weights are finite and haveto be accounted for when adding aballasted system. Panel angle, windspeed, building height, surroundingbuildings and landscape (categoryzone), and seismic factors all deter-mine the amount of weight requiredto hold the system down. Steeper tilt

more benefits of the Rayportô mounting sys-tem. Rayportô is the fastest of the flat roofsystems to install.We designed this systemwith the end user in mind, said Faust. Wecame from the auto industry where com-ponents must be designed in essence tobuild themselves. Our philosophy is notto design in a vacuum. We spoke withinstallers to find out what worked anddid not work for them. Listening to in-stallers, AET engineered the system tosimplify the entire process for installersfrom ordering (there are only four partnumbers) to installation.Another highlight of the Rayportô is the

modular design. Unlike most solutions onthe market, adjusting the placement ofthe Rayportô module on the array iseasy. In the event that an obstruction ismis-measured or not accounted for (i.e.an air condition unit or roof drain) theRayportô modules can be easily relo-

angles, higher wind speeds and tallerbuildings can greatly affect the finalloading numbers on ballasted pro-jects,î said Faust. ìFor the Pearl Har-bor project, we were able to analyzeeach building and come in at theweights they needed. The zero-de-gree tilt of the panels was a majorfactor.Through their full-service approach,

AET delivered a product that met the re-quirements of DRI, Niking, and the Navy.AET offers mounting solutions that fit everysolar panel on the market. The modularnature of its mounting systems accommo-dates all solar module sizes and sub-stantially simplifies the design andordering process. For every project AETprovides a full layout and loading analy-sis. These factors all contributed to thesuccess of the Pearl Harbor project. Formore information visit AETenergy.com. �

Feature Story +

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should go through and become familiarwith when thinking about entering the so-lar industry. This is not everything youneed to know, but it is a start. Each itemwill not be comprehensive either, but itwill give you a template for further re-search that you’ll want to complete whenthinking about the industry. We wanted

A t HeatSpring Learning Institute,we do a lot of NABCEP certifiedsolar training for electricians

who are going to be starting companiesin solar or moving their existing businessinto solar. After 4 years and 500 solaralumni who have gone through our train-ing, this is the list that every electrician

to focus on a few of the most important el-ements an electrical contractor should befamiliar with when looking at solar.1. What do you want to do in Solar?2. What you know vs. what you need tolearn.

3. How to Pull a Solar Permit?4. What’s the deal with incentives?

After 4 years and 500solar alumni who have

gone through our training,

this is the list that every

electrician should go through

and become familiarwith when thinking about

entering the solar industry.

Feature Story +

8 ItemsElectricians Need to

Consider When Going Solar

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5. Training – Make Sure Not to WasteYour Money

6. A huge list of resources.

1. WHAT DO YOU WANT TO DOIN THE SOLAR INDUSTRY?The first question you need to ask your-

self is what you want your role to be inthe solar industry. The answer to thisquestion will determine how much andwhere you need to put your effort. Thereare three main paths for electricians. Thefirst, starting or running a company thatis installing solar. The second, workingas a project manager coordinatingcrews for the installation of projects. Thelast, simply working in the field installingarrays.If you’re a small or mid-sized business

owner running a solar company, youneed to know everything, and it’s verylikely you’re going to be wearing manyhats, similar to any small business. You’llneed to be an incentive expert, under-stand sales and permitting, and knowhow to select proper partners for yoursolar business.If your goal is to become a project

manager, you will probably not be deal-ing with sales and incentives, but you willneed to be familiar with solar code (sec-tion 609 NEC), roofing and structuralloading of the building, and DC wiring.If your goal is to use your license to be-

come an installer, you’ll need to be veryfamiliar with solar code and best prac-tices but will never be touching incentives,sales, roof or structural issues.Understanding what your specific

goals are in solar will be critical to mak-ing the right decisions about training youwill need, and identifying what aspectsof the solar industry you lack and need toresearch.For the sake of this article, I will be as

thorough as possible and will write forthose who plan on starting a business orexpanding a business into solar as it isthe most extensive list.

2. WHAT YOU KNOW VERSUS LACKOn the surface, because solar is pro-

ducing electricity, is seems to be a jobclearly in the realm of electricians. How-ever, because of the overlap with policy,the roof, and the structure of the building,

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you. This requires more sales skills be-cause typically you need to find cus-tomers, visit them, show them theeconomic value and put a fire in themthat makes them want solar.Incentives Paperwork: Aside from

structural and sales, incentives are thethird element that sets solar apart fromthe typical electrical contracting busi-ness. Be prepared to become a solar in-centive master. You’ll not only need tounderstand this to sell the job but alsoto apply for interconnection with the lo-cal utility and make sure that you getpaid.

3. UNDERSTANDING HOWTO PULL A PERMITAs a contractor, you’re familiar with

the process of applying for permits. Thereis no standard process for permitting asolar job. Your best bet is always to callthe local building department and ask,“What do I need to pull a solar permit?”Recently, fire departments are becomingmore active when it comes to permittingsolar jobs, so you’ll want to contact thefire department as well.

Here are the elements you’ll typicallyneed to provide in order to permit a solarjob:1. Electrical License - For the electricalwiring

2.Construction Site Supervisors License -For the building/structural work

3. Three Line Diagram with PE Stamp - Adetailed three-line diagram of the sys-tem, with all necessary calculations

there are many more trades involved withsolar than just electrical.

What electricians know well:ACWiring: The one thing that all elec-

tricians in the USA are very familiar withis AC wiring. This means that you’ll bevery familiar with everything

from the inverter into the existing service.What you’ll need to brush up on:Structural: The main issue that solar

companies need to deal with, that anelectrical contractor would not normallyhave to deal with, is structural loading is-sues. Other than financing, structural is-sues with the roof are the main obstaclesthat stop small and light commercial pro-jects from getting permitted. On occasion,there are residential roofs that will needsome reinforcing as well to meet code. Ifyou want to get into solar, you need tofind a good structural engineer to workwith.DC Wiring: It is likely you will not be

as familiar with DC wiring, particularlywith DC combiner boxes and discon-nects. There is no specific training to take,and it is something that is typically pickedup on the first couple of jobs.Sales: The main difference between so-

lar and electrical work is that in solar youneed to convince the customer to go so-lar and pick your contracting company.When submitting bids to wire a house,the homeowner will be getting electricity--they just need to pick the contractor theywish to work with. This means that youbid on the job and wait, no real salesskills required. With solar, you must con-vince the customer to go solar and pick

stamped from a professional engineer4. Structural Diagram with Stamp - A di-agram providing that the existing roofcan hold the weight of the panels, liveloads, and snow loads stamped by aprofessional engineer

5. Cut Sheets - The cut sheetsprovided by the manufac-turer for all the products youwill be using in the product.Mainly AHJ want to makesure everything is UL listed

4. INCENTIVESIncentives are the largest dif-

ference between solar and elec-trical contracting.There are six main types of

incentives that the governmentuses to incentivize the adoptionof solar technology. It will beimportant that you understandeach one. Also, you’ll need tobecome very familiar with your

region. The incentives change by utility,state, and local municipality.1. Tax credit - Tax credits are a reductionin the amount of tax’s that must bepaid to the government. Typically, theyare given in a lump-sum for a systemor per kW rated size of the system.Note that only organizations with atax appetite can use tax credits. Also,some laws will allow you to use a taxcredit over multiple years if an orga-nization’s tax appetite is not largeenough to use it in one year.

2. Grant - Where a tax credit is a reduc-tion of money that an organizationneeds to pay, a grant is an actualcheck from the government directly tothe organization. The benefit is thatthe money comes faster and can beapplied to all organizations, tax ap-petite or not.

3. Feed-in-Tariff - Also known as a FiT, aFeed-in-Tariff is a structured payment,where the utility will pay for everykWh produced by a solar power sys-tem. This is a production-based systemas opposed to a credit. Production-based incentives are determinedbased on the produced kWh AC ofthe system and not the rated installedcapacity in kW DC.

4. SREC - SRECs stand for Solar Renewable

If you want to getinto solar, you needto find a goodstructural engineerto work with.

Feature Story +

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Energy Credits and are a production-based incentive similar to the FiT, ex-cept their exact price is determined bythe market instead of the government.The purchaser is the same. If you wantmore information, see HOW SRECsWORK - http://blog.heatspring.com/how-do-srecs-work/

5. Accelerated Depreciation - Depre-ciation is a tax-based incentive thatthe federal government uses to de-crease the cash investment of a so-lar investment on the first few yearsof operation. Accelerated depreci-ation allows an organization witha tax appetite to write up 100% ofthe system cost within the first fiveyears of operation on a specifiedschedule. This will decrease theamount other organizations pay intaxes.The ALL-in-ONE Incentive Database is

called DSIRE - http://www.dsireusa.org/. Become very familiar with this website.It can be a little hard to interpret, but allthe information about every single incen-tive is listed here and is updated often.

5. TRAININGBUYER BEWARE; when purchasing

training, there are a lot of trainingproviders coming into the market. Someare good, but some are bad. You’resmart--just do your homework.Everyone looking to get into solar

should take some quality technicaltraining so they understand how thesystems work, how they are designed,solar code and some basics of salesand incentives. It doesn’t matter if youare going to be selling, installing,managing, or designing--everyonewill benefit from quality trainingabout solar.Here’s a list of the top six characteris-

tics of quality training that every contrac-

tor should look into when purchasingtraining to make sure you don’t wasteyour money.1. Quality Trainer - Ideally the best trainerwill have been in the solar industry forat least five years--better if more thanten. This is rare, but only with this levelof experience can an instructor answerall questions you might have.

2. Licensed Electrician - Understandingcode is key to quality jobs. Don’t takeyour first training with a trainer who isnot an electrician. You’ll also want tomake sure the trainer is an ISPQ Certi-fied Master Training. You can find thelist of ISPQ Certified Master Trainershere: http://irecusa.org/irec-pro-grams/ispq-training-accreditation/ispq-awardees/. Also, you’ll want to makesure the instructor is NABCEP Certified.You can find that list here:http://www.nabcep.org/installer-locator

3. Certification - Make sure the first train-ing you go to has been certified by IRECwith the ISPQ certifications. This is aquality control measure to make surethat the training properly addressed allthe elements of solar, which is muchmore than electrical work. You can findthat list here: http://irecusa.org/irec-pro-grams/ispq-training-accreditation/ispq-awardees/eastern/

4. Location/Timing - Some trainingproviders only have a few locationsand require you to spend a lot of timetraveling. Try to find a local trainingprovider.

5. Product Agnostic - Product training isgreat after you understand the tech-nology. Make sure your first trainingor two is in product agnostics so thatyou can focus on learning the technol-ogy and not be sold a product.

6. Alumni Resources - Make sure yourtraining provider helps to support theiralumni after the training. Ask for refer-

rals from the company--spend 20 min-utes and make a few phone calls. Ifyou’re just entering the industry, you’llsurely have some questions aboutproducts, sales, and how to select adistributor, and you’ll want someoneyou can rely on for help.

6. RESOURCESHere is a comprehensive list of solar

resources you’ll need to become familiarwith for success in the solar industry. �

Publications:Home Power -

http://homepower.com/home/Solar Pro - http://solarprofessional.com/home/Solar Today -

http://www.ases.org/index.php?option=com_content&view=article&id=14&Itemid=22Solar Industry -

http://www.solarindustrymag.com/home.phpPhoton International - http://www.photon-

magazine.com/HeatSpring Magazine –

http://blog.heatspring.com

TextbooksPhotovoltaic Design and Installation Manual -

http://www.amazon.com/Photovoltaics-Installa-tion-Solar-Energy-International/dp/0865715203Photovoltaic Systems -

http://www.amazon.com/Photovoltaic-Systems-James-P-Dunlop/dp/tags-on-prod-uct/0826913083NEC 2011:

National Electric Code NFPA 70 -http://www.amazon.com/National-Electrical-Code-Bundle-Package/dp/0840022255

OrganizationsAmerican Solar Energy Society -

http://www.ases.org/Solar Energy Industry Association -

http://www.seia.org/

Industry EventsPV America Series -

http://www.pvamericaexpo.comSolar Power International -

http://www.solarpowerinternational.com/2011/custom/spi/index.htmNECA - http://www.necanet.org/Mid West Renewable Energy Fair -

https://www.midwestrenew.org/InterSolar - http://www.intersolar.us/

It doesn’t matter if you are going to be selling, installing,managing, or designing--everyone will benefit fromquality training about solar.

Feature Story +

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Making Use of Portable VideoInspection Tools in Underground Vaults

Day-to-day underground operationsmay involve preventative maintenance.Remote viewing pole cameras help in-spect the general condition of a vault(hangers, conductors, conduit, and gen-eral structural integrity) from above-ground. In most cases, conduit numberand conductor tags can also be readfrom aboveground. Another use for thistechnology has been for auditing con-ductors and other vault components inpreparation for future work to make surethe actual assets match the future plans.

Many urban utility companies are re-stricted from opening and spending toomuch time at a manhole site when it dis-rupts traffic. For some applications aquick look with a pole camera cangreatly reduce the time required.

Zistos Portable Video Systems has aversatile pole camera system that is usedby several power utility companies for anumber of applications in underground

R emote viewing cameras are in-creasingly being used for under-ground inspection applications by

urban utility companies for a number ofpurposes. One compelling case to bemade for sending a camera down amanhole before sending a crew mem-ber is if there has been a fault. A com-pletely unknown situation could exist inthe vault that makes a confined spaceentry especially dangerous. Using asteerable, self-illuminated video zoomcamera on a telescoping pole can givethe operator a clear picture of the natureof the space and what is required tomake a safe entry.

Thermal camera technologies thatcan be installed on the end of a poleand viewed safely from abovegroundhave the added advantage of beingable to see some detail through smokeand also clearly identify hot spots fromfaulty components.

vaults. The Zistos Utility Vault InspectionKit comes standard with a self-illuminated10:1 zoom camera, a 14 foot articulat-ing, telescoping pole and a small tripod-mounted display system. The kit sets up ina few minutes and packs down into arugged, foam-fitted hard plastic case. Allcomponents are rugged and weather-proof to function in real-life field condi-tions without problems.

An optional Dual View Thermal andBlack & White camera can be readilychanged out for the zoom camera to lookfor temperature variations and hot spots.Then, instantly switch to black and whitevideo for a better look at the details sur-rounding the point of thermal interest.

A second operator has the ability toconnect a laptop computer either wire-lessly or inexpensively through a ten footplus cable. This allows another set ofeyes on the inspection process and canput the computer operator outside theimmediately cordoned off work zone.They can record still as well as videoimages on the laptop. The supplied soft-ware can be used to annotate the pho-tos for documentation purposes oremailing back to the shop for additionalconsultation, etc..

All of these activities save time, allowcrews to stay productive and reducedowntime. It seems that when theportable video equipment starts beingused for one application other uses for itare also found. After fielding the equip-ment for several months, an existing Zistosuser commented, “I breathe a little eas-ier knowing that the Zistos cameras areavailable and that we have taken othersteps to significantly reduce the risk to ourpeople.”

Zistos is happy to provide a demon-stration at your facility to show how thesystem can be a cost-effective solution toreduce risks, and be more proactive withpreventative maintenance inspections.

Contact Zistos for more information631-434-1370, [email protected],www.zistos.com/Industrial.htm. �

Feature Story +

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Stiebel Eltron ThermalSolar Water Heating System

New Products +

Stiebel Eltron SOLKITS 2 and 3 thermal solarsystems are Energy Star Rated and have SRCCOG300 system certification. The SOLKITS con-sist basically of a well-insulated storage tankwith heat exchanger(s) and high performanceflat plate collector panel(s). They constitute a veryeconomical and reliable solar domestic hot water (DHW) sys-tem for commercial and residential applications, includingspace heating and swimming pools. The solar closed loopsystem includes SOL 27 PREMIUM flat plate collector panel(s)

and mounting hardware, a SB/SBB storage tank with heatexchanger(s), a pump station with expansion tank and vari-ous temperature / pressure gauges, pressure relief and checkvalves, and a controller unit with corresponding sensors.Stiebel Eltron thermal solar equipment is the culmination ofover 30 years of experience in the thermal solar business.There is an industry leading 10-year warranty on Stiebel El-tron solar panels and tanks. For more information pleasevisit our website at www.stiebel-eltron-USA.com or callus at (800) 582-8423. �

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Hyster Company recently hon-ored its top-performing dealerswith its prestigious Dealer of Dis-tinction award. The 2010 award-win-ning celebration, held in New York City,marked the 17h year that Hyster hashonored its dealers for their industry-lead-ing level of performance in all areas ofthe materials handling business.

“Hyster Company’s Dealer of Distinc-tion Awards Program recognizes the sig-nificant contribution our dealers make inachieving our distribution goals and ob-jectives,” said Don Chance, president of

Hyster Company Names Dealerof Distinction Recipients

Recipients honored with special celebration

Industry News +

Visit us at: www.arpiusa.com Visit us at: www.krenzvent.com

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sales for NACCO Materials Handling Group, Inc. “Thequality of service and the consistency in which our dealersexceed the expectations of our end users makes them anintegral component of our growth and success.”To become a Dealer of Distinction, dealers must reach

elevated goals in customer satisfaction, dealer perfor-mance, general management, truck sales, short-termrental, training, aftermarket sales, and parts and serviceoperations.

RECIPIENTS OF THE DEALER OFDISTINCTION AWARD INCLUDE:

Arnold Machinery Company – UtahEquipco Division Phillips Corp.MH Equipment – Iowa MachineryMH Equipment – IllinoisMH Equipment – Ohio SouthPapé Material Handling, Inc. – PortlandPapé Material Handling, Inc. – EugenePapé Material Handling, Inc. – Central WashingtonPapé Material Handling, Inc. – SpokanePapé Material Handling, Inc. – FresnoWajax Industries – Prairie

ABOUT HYSTER COMPANYBased in Greenville, N.C., Hyster Company

(www.hyster.com) is a leading worldwide lift truck designerand manufacturer. Hyster Company offers 130 models con-figured for gasoline, LPG, diesel and electric power, withthe widest capacity range in the industry — from 2,000 to115,000 lbs. Supported by the industry’s largest and mostexperienced dealer network, Hyster Company buildstough, durable lift trucks that deliver high productivity, lowtotal cost of ownership, easy serviceability and advancedergonomic features; accompanied by outstanding parts,service and training support.Hyster Company is an operating division of NACCO Ma-

terials Handling Group, Inc. (NMHG), which employs ap-proximately 5,000 people worldwide. NMHG isheadquartered in Cleveland, Ohio, and is a wholly ownedsubsidiary of NACCO Industries, Inc. (NYSE:NC).Hyster and are registered trademarks of Hyster Company in

the U.S. and other countries. �

Industry News +

Visit us at: www.solarpathfinder.com Visit us at: www.steelman.com

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Advertiser Index +

AET Energy 7 www.aetenergy.comAlcan IFC www.cable.alcan.comARPI of USA 32 www.arpiusa.comBierer & Associates 21 www.bierermeters.comBud Ferguson's Industrial Supply 35 www.industrialcontrolandsupply.comCementex 33 www.cementexusa.comDee Zee Mfg. 9 www.deezee.comDexter + Chaney 2 www.dexterchaney.comHaticon Solar 13 www.haticonsolar.comHioki USA 4 www.hiokiusa.comICUEE 27 www.icuee.comKrenz Vent 32 www.krenzvent.comKVAR 29 www.kvar.comLapp USA BC www.lappusa.comLED Tronics, Inc. 17 www.ledtronics.comLegrand/Cablofill 1 www.legrand.us/cablofilNABCEP 16 www.nabcep.orgNoren Products 30 www.norenproducts.com/ecOntility 25 www.ontility.comPhase-A-Matic 23 www.phase-a-matic.comRam Mount 19 www.ram-mount.comSolar Pathfinder 34 www.solarpathfinder.comSteelman Industries 34 www.steelman.comSummit Technology Inc. 12 www.powersight.comSunWize 3 www.sunwize.comUnderground Devices 11 www.udevices.comUtility Metals IBC www.utilitymetals.comZistos Portable Video Systems 15 www.zistos.com/Echtm

Company Name Page Number Website

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