Expert Advice on Green Buildings

Sanyo HIT Power Solar Module and LEED 2012

Product Review provided by: Sarah Gudeman, Morrissey Engineering, Inc.
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Product Review

SANYO HIT Power 225A Solar Module

SANYO Electric Co., Ltd. is a global leading company providing solutions for energy, environment and lifestyle applications.

The Solar & Smart Energy Division of SANYO North America Corporation, a subsidiary of SANYO Electric Co., Ltd., is headquartered in San Jose, California, and handles sales and services for photovoltaic and Smart Energy Systems.

HIT stands for Heterojunction with Intrinsic Thin-layer. This proprietary structural technology minimizes defects within the p-n junction of the cell, the region in the cell where the n-type (negative) and p-type (positive) Si layers meet, which results in highly efficient cells with high module efficiencies that produce more power at higher temperatures.

The new Hybrid-Cell HIT Power Modules are rated at 225-watts of output, promise the most PTC watts on the market (PTC is a ‘real world’ performance rating determined by independent laboratory PVUsa), and up to 10% more kWh than conventional crystalline cells at comparable temperatures.

SANYO North America Corporation released the 225A in the United States on April 1 as “the most efficient HIT Power solar module launched to date in the US.” The 225A panel offers independently-certified cell conversion efficiencies of 20.2% and module efficiencies of 17.8%. These increased efficiencies are attributable to the patented SANYO solar cell technology that combines a high efficiency monocrystalline silicon sandwiched between ultra-thin layers of amorphous silicon for superior conversion and excellent temperature characteristics.

The high PTC/STC Ratio of 93%, with the most PTC watts measured at 209.1, demonstrates that the 225A performs very near promoted values and SANYO backs that up with a -0/+10% warranted tolerance (which is an absolute deviation from rated value). You can read more on these and other parameters to know when shopping for a solar module here.

Solar Module Applications

In real-world applications, these panels have proven themselves to generate more energy than traditional panels and perform better in less than ideal conditions (high temperature, diffuse or low light, etc) to obtain maximum power generation for a given square footage of space.

When it comes to installation, the packing density of the panels reduces transportation, fuel, and storage costs from the company’s ISO 9001 (quality), 14001 (environment), and 18001 (safety) certified factory’s, located in California and Oregon.

SANYO's 20-year power output warranty for HIT Power panels guarantee customers receive 100% of the nameplate rated power (or more) at the time of purchase. That, coupled with a 5-year product workmanship warranty help realize complete customer satisfaction. The 225-watt module is available for purchase online in the range of $760 each.

LEED Credit Overview
 

For LEED 2012, the newest version of the USGBC’s LEED rating system, renewable energy from sources such as solar may earn points under the "Renewable Energy Production" credit (formerly called "on-site renewable energy").

The Renewable Energy Production credit may have higher hurdles to achieve than in prior versions of LEED.

USGBC states: "Projects that are unable to install renewable energy systems on-site, but share in the ownership of community renewable energy systems, such as “solar gardens”, are now eligible to meet this credit."

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Expert Advice and Comments

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Re: Sanyo HIT Power Solar Module and LEED 2012

Thanks for this article Sarah - this is very helpful. These solar panels seem worth investigating.

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