Electric Vehicles Charge up What's Available, How They Work, Owner Stories
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Issue 131 ELECTRIC VEHICLE SPECIAL Going off-grid? Check out our ReNew Battery Buyers Guide Technology for a sustainable future Find it inside! Electric vehicles charge up What's available, how they work, owner stories PLUS Solar finance, off-grid in WA, DIY solar watering systems & more IssueIssue 125131 April–JuneOctober–November 2015 2013 AU $7.95$8.95 NZ NZ $8.95 $9.90 www.renew.org.au Not just transport: EVs as storage WIN DIY: going off-grid, one step at a time a hot water heat pump 100 energy assessments: lessons learnt from Siddons Solarstream! *Australian residents only 131 cover2.indd 1 12/03/2015 7:51:04 PM Contents Issue 131, April – June 2015 Read more articles at renew.org.au Follow us on Twitter: twitter.com/ReNewMagazine Like us on Facebook: facebook.com/ReNewMag More sustainable transport Electric vehicles, here and now Features Special feature: electric vehicles 22 d 34 d Off-grid in WA EVs in Australia: why are we waiting? Jai Thomas describes his parents' journey Bryce Gaton explores the current and future towards their sustainable work and lifestyle. market in EVs in Australia. 28 d 38 d Solar financing Know your renewables: all about EVs Andrew Reddaway considers whether there Lance Turner looks at some of the basic o 'Kambarang' in 2009: the dream of off-grid living are savings to be found in financing concepts and terms you might come across taking shape in WA. Page 22. your solar install. when researching EVs. 30 44 d 100 home energy assessments A tale of two EVs Tim Forcey shares the process and lessons An owner of two electric vehicles, Richard learnt in a recent round of home energy Keech, shares his experience and reflects on assessments. electric cars in general. 87 d 49 d Book reviews Your EV's other life Reviews of Naomi Klein's This Changes EV by day, grid backup by night? Kristian o Home energy assessments raising awareness of Everything and George Marshall's Don't Even Handberg explains how EVs could energy efficiency issues. Page 30. Think About It: How Our Brains Are Wired to help in the energy storage equation. Ignore Climate Change. 52 d EV charging infrastructure Tim Washington considers the relationship between charging infrastructure and EV sales, and lessons for Australia from the US experience. o The BMW i3: a recent arrival in the Australian EV o EVs helping meet energy demands by feeding market. Find out what else is on offer. Page 34. stored power back into the grid. Page 49. 4 ReNew Issue 131 renew.org.au g Cover image: Solar carport concept, courtesy of BMW Group Press Club With our focus firmly on electric vehicles this issue, we liked this solar carport concept released by BMW last year. Combining solar panels with electric vehicle charging is something that many of the EV owners we interview are already doing, albeit on a smaller scale. Interestingly, the solar panels here are translucent glass- on-glass modules as a way of making the greening of the energy supply more visible—more "transparent" as BMW says in their press release. The panels charge the car, and once the car is charged the excess can be sent back to the grid. Our electric vehicle special starts with an exploration of what's available in Australia on page 34. Special feature: electric vehicles Guides 56 d Best EVer stories Battery buyers Regulars From running an EV off-grid to a desire for more sustainable transport, EV owners share guide 06 the stories behind their choices with Robyn About ATA Deed; plus thoughts on the Tesla Model S 67 d 08 from fan Simon Hackett and e-bike opinion Get the right energy storage Editorial from Rebecca Lee. Lance Turner examines what to look for in a 10 battery bank and how to get the right battery Up front 63 d for your needs. 14 Everything's going electric Letters Planes, buses and bikes: Lance Turner takes DIY 16 a look at other transport options that are Products ditching fossil fuels. 80 d 86 Motorised valves—not an open-and- Shop with the ATA shut case 87 Motorised valves are ideal for use in water ATA branches distribution systems that run on low 88 pressure, such as rainwater tank systems. Pears Report But there’s more to them than meets the eye. 90 Patrick Innes explains what to look for. Q&A 92 d 82 d WIN! ReNew subscriber prize Off-grid water systems 94 Martin Chape explains how he replaced a Classifieds o Fast charging electric buses: the future of electric- power-hungry bore pump with 95 powered public transport? Page 63. a low-cost solar unit and automated his Reader competition watering system at the same time. 96 Member profile 84 d Going off-grid slowly Stan Baker details the steps he's taken towards going fully off-grid. o DIY solar-powered watering solution. Page 82. renew.org.au ReNew Issue 131 5 FEATURES Off-grid in WA Riding the trail to sustainable living Jai Thomas describes his parents’ journey to off-grid living. o This DIY weekender, built over 12 years, was the IN 1993, my parents, Sherry and Barrie unwatered bushland”, and many ups and first step towards the dream of off-grid living and Thomas, made a life-altering decision to downs, they now look back on their journey an eco-tourism business. pursue a ‘tree change’, long before that with pride and are happy to share their story concept came into being. Finding a property of ‘riding the trail’ to sustainable living. in the beautiful Preston Valley of south-west Western Australia, their dream was of a future The early days in the emerging eco-tourism industry, based Life on the Preston Valley property started around their love of the bush and of bicycles. in a tent at weekends. With a six-day bike With four children under 10, some might say it shop business in town and four children in was a bold vision! primary school, even just getting to the place Twenty-two years after purchasing one day a week was a challenge. Then, the 100 acres of “rate-absorbing, unpowered, retail slowdown of the mid-90s hit the bike 22 ReNew Issue 131 renew.org.au Solar financing Comparing the options Andrew Reddaway considers whether there are savings to be found in financing your solar install. “SAVE money from day one”—sounds pretty finance attached to an inflated system price, good doesn’t it? Several companies offer or direct debit fees that continue after you’ve to finance your solar install, claiming that repaid the loan. savings on your electricity bill will outweigh repayments so you will be better off. But how ENVIRONMENTAL UPGRADE AGREEMENT far ahead might you be? Currently EUAs are offered by a few councils through targeted programs. The council Financing options lends you money (from an external finance For this article we looked at several organisation) and you pay it back via a special options to pay for a solar system: charge on your council rates. If you move • pay upfront out, the repayments are taken up by the new • redraw from your mortgage owner. This allows for cheap finance with • unsecured finance long repayment periods. • Environmental Upgrade Agreement (EUA) • Power Purchasing Agreement (PPA). POWER PURCHASING12000 AGREEMENT Under a PPA10000 you do not ownPay theUpfront solar system.Mortgage EUA PPA finance Unsecured PAY UPFRONT Instead its generation8000 is metered and the solar solar This option is only available if you have installer billsno you; for example, they might bill 6000 to sufficient savings to draw on. The only you 21c per kWh. You still get a bill from your 4000 finance-related cost is the ‘opportunity cost’: grid energy retailer, but the total of the two 2000 if you hadn’t spent the money on a solar bills should be less than your previous bill. compared system, you could have invested it instead There are several 0 variations of PPA so watch 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 and made a return. For example, you could out for issues‐2000 such as moving house or roof Benefit have invested in a term deposit earning 3.7% damage. Also,‐4000 what happens when you’re not Photo: Nick Stephenson per annum (before tax). home and the‐6000 solar system is exporting to the grid? If you still have to pay the installer, then REDRAW FROM MORTGAGE the solar system may actually be costing you Home loans are secured by your house so the money at those times. interest rate is low e.g. 6% per annum. UNSECURED FINANCE $9,000 Many solar installers will offer finance, $8,000 Results from Sunulator model: typically from an external funder. Separate $7,000 finance is also available from financial a OptionFigure 1. Net present NPV $6,000 Pay Upfront 7,913$ $5,000 institutions. If the loan is set up as a lease, the value of solar system Mortgagegiven the assumptions 7,307$ $4,000 lender may be responsible for maintenance. EUA 6,755$ listed in the article. $3,000 Repayment amounts, durations and fees vary PPA finance 6,274$ Unsecured 6,183$ $2,000 considerably, but the deals we’ve seen have $1,000 effective annual interest rates ranging from $‐ 10% to 28%. Watch out for apparently cheap Pay Upfront Mortgage EUA PPA finance Unsecured 28 ReNew Issue 131 renew.org.au 100 home energy assessments Assessing the process Simple discussions with householders can shine a light on common energy efficiency problems.