{"id":116502,"date":"2014-02-20T07:30:52","date_gmt":"2014-02-20T06:30:52","guid":{"rendered":"https:\/\/www.sma-sunny.com\/?p=116502"},"modified":"2020-12-23T13:32:52","modified_gmt":"2020-12-23T12:32:52","slug":"challenge-accepted-limited-roof-space-trumped-by-the-desire-for-solar","status":"publish","type":"post","link":"https:\/\/www.sma-sunny.com\/us\/challenge-accepted-limited-roof-space-trumped-by-the-desire-for-solar\/","title":{"rendered":"Challenge Accepted: Limited roof space trumped by the desire for solar"},"content":{"rendered":"

There is no lack on sunshine in Chandler, Arizona. Residents of this Phoenix suburb enjoy 211 days of sunshine annually with an additional 85 days of partial sun\u2014perfect for solar power. But a residential PV system needs more than just abundant sunshine to be a wise choice. It also needs a willing partner \u2013 a roof capable of handling the added demands of a solar power system. This was the challenge faced by Jeff Spies, Senior Director of Business Development for Quick Mount PV<\/a> when he made the decision to install a 4.7 kW system on his home.<\/p>\n

Raising the roof<\/b><\/h5>\n
<\/a>

Flashed Quick Hooks for tile roofs are nearly hidden and provide reliable 30 year waterproofing and robust mounting to the roof.<\/p><\/div>\n

Before a single module was installed, Spies knew the condition of his roof wouldn\u2019t last the 30 years he expects of his PV system. Fortunately, American Solar<\/a> is licensed for both solar and roof work and was ready for the job.<\/p>\n

The tile roof\u2019s 16-year-old deteriorated felt underlayment was upgraded to #90 mineral surface roofing underlayment and drain-through battens replaced original wood battens to maximize rainwater drainage. Plumbing and gas vent stacks were also removed or relocated to make room for the array.<\/p>\n

\"\"<\/a>

The finished appearance of the first story array is very attractive\u2014no visible flashing.<\/p><\/div>\n

Mounting and positioning<\/b><\/h5>\n

Once the roof was deemed solar-ready, installers used Quick Mount PV\u2019s flashed Quick Hook<\/a> and Ironrdige<\/a> standard rail<\/a>. This configuration fully conceals the roof flashing to maximize the array\u2019s appearance.<\/p>\n

Serious consideration was also given to the array\u2019s orientations. With no true-south facing roof area, the system was designed using two separate strings of LG 260W Mono X Series<\/a> modules, 18 total, on different rooflines, taking advantage of the dual channel inputs and MPP tracking on the Sunny Boy 4000TL-US<\/a>. By positioning one string southeast (3.1kW) and one southwest (1.6 kW), power production and roof space were both maximized.<\/p>\n

Secure Power Supply<\/b><\/h5>\n

No one wants to gamble on a grid failure, especially on a hot Arizonan summer day. But if it happens, Spies knows he has a game plan. The TL-US series\u2019 Secure Power Supply is a switched outlet that provides up to 1,500W of standby power should the grid go down during daylight hours.<\/p>\n

\"American<\/a>

American Solar’s Will Herndon and Jeremy Lippens after routing the secure power supply outlet inside the home.<\/p><\/div>\n

\u201cThe SPS outlet is wired inside my house and stays hidden when I don\u2019t need it,\u201d said Spies. \u201cBut it provides peace of mind knowing that when we have a power failure, I\u2019ve got standby power to keep my fridge cold and my phone charged so my family and I can stay in touch.\u201d<\/p>\n

Long-term planning is an integral part of a PV system\u2019s design. From roof repairs and weatherization to Secure Power Supply to help mitigate downtime from grid outages, thorough planning can make or break a PV system\u2019s effectiveness. Good planning means this house is ready to handle whatever the conditions throw at it.<\/p>\n\n\n

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There is no lack on sunshine in Chandler, Arizona. Residents of this Phoenix suburb enjoy 211 days of sunshine annually…<\/p>\n","protected":false},"author":45,"featured_media":116503,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1715],"tags":[1370,1613,1392,1315,1384,1442],"class_list":["post-116502","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-solutions","tag-pv-design","tag-references","tag-renewable-energy","tag-solar","tag-solar-spotlight","tag-sunny-boy"],"acf":[],"yoast_head":"\nChallenge Accepted: Limited roof space trumped by the desire for solar - Sunny. 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