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Irvine California- Orange County Solar

Irvine, CA

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Poway, CA

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Mission Viejo, CA

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Poway, CA

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Placentia, CA

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San Diego, CA

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Rancho Santa Margarita, CA

Valley Center California, San Diego Area

Valley Center, CA

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El Cajon, CA

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Carlsbad, CA

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How Much Power will Your Solar System Really Produce?

71% of all California Installations occurred in the past 3 years. Most Solar Companies have been focused on Solar Hot Water and do not have the Engineering Expertise to provide accurate power output estimates for Photovoltaic Systems.

When we give you a Real World Estimate, you can be certain of the results. Don't hire a plumbing company to install your Solar System. Partner with the experts.

solar system output, stc, ptc, cec

STC ratings are approximately 25% higher than real world output. Call one of our Technical Representatives for a Real World Estimate.

Electricity Production Estimates for Standard Crystaline Modules

how to calculate solar electric outputThe Solar Photovoltaic industry is relatively young and immature.Data from the California Energy Commission shows that 98% of all Solar installations in California occurred in the past 6 years. In fact, 71% of all installations occurred in the past 3 years. There are very few standards and it is quite common for Solar Companies to quote Standard Test Conditions (STC) which are very specific laboratory tests. Your system will not be in a laboratory. If you want to acquire a system that will perform to your expectations, you will need to reduce the STC rating by at least 23%-25%. After this, you will need to account for inclination, compass direction and shading. Call us for an honest Real World Estimate. One of our Technical Representatives can provide this information for you at no charge.

Sample 3000 watt System
For example, a 3,000 watt (3 kW) system (STC) would have the following more conservative ratings:

3,000 watts Standard Test Conditions (STC)
2714 watts PVUSA Test Conditions (PTC)
2578 watts California Energy Commission (CEC)
2315 watts including losses due to AC/DC/Diodes/Inverter mismatch

2315 watts is a real world estimate.

This system assumes no shading, 34 degree tilt and due South roof placement.

Predicted Monthly System Output
STC 3000/1000 watts/kw x 5.5 sun hours/day x 30 days = 495 kWhs
PTC 2714/1000 watts/kw x 5.5 sun hours/day x 30 days = 448 kWhs
CEC 2578/1000 watts/kw x 5.5 sun hours/day x 30 days = 425 kWhs
A real world estimate
-----2315/1000 watts/kw x 5.5 sun hours/day x 30 days = 382 kWhs

Call the Professionals
Don't be fooled by a deal that sounds too good to be true. Call one of our expert Technicians to provide you with a free site evaluation and a real world estimate.

 

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You can be sure that a Solar Energy System installed by Heritage Solar will exceed the requirements of the National Electrical Code (NEC). Our attention to detail combined with unparalleled customer service ensures a thorough, hassle free installation. Contact Heritage Solar, the Solar Electric Specialists.

Invest in your home or business vs. paying the power company forever. Solar power systems pay for themselves the day you install them. You can protect yourself from future energy price increases and receive a Return On Investment of 10-15%, better than stocks or bonds.

Contact us for Installation in San Diego County, Orange County and Riverside County


Serving Southern California, Orange County, San Diego County, and the following cities: Aliso Viejo, Anaheim, Anaheim Hills, Balboa, Balboa Island, Bonsall, Brea, Buena Park, Capistrano Beach, Carlsbad, Cathedral City, Chula Vista, Corona Del Mar, Coronado, Costa Mesa, Coto de Caza, Cypress, Dana Point, Del Mar, Dove Canyon, El Cajon, El Toro, Emerald Bay, Encinitas, Escondido, Fallbrook, Foothill Ranch, Fountain Valley, Garden Grove, Huntington Beach, Imperial Beach, Indian Wells, Irvine, La Habra, La Mesa, La Palma, Ladera Ranch, Laguna Beach, Laguna Hills, Laguna Niguel, Laguna Woods, Lake Forest, Lemon Grove, Mission Viejo, Monarch Beach, Murrieta, National City, Newport Beach, Newport Coast, Oceanside, Orange, Palm Desert, Palm Springs, Placentia, Portola Hills, Poway, Rancho Mirage, Rancho Santa Margarita, Rancho Santa Fe, San Clemente, San Diego, San Juan Capistrano, San Juan Hot Springs, San Marcos, Santa Ana, Santee, Seal Beach, Solana Beach, South Laguna, Temecula, Trabuco Canyon, Tustin, Villa Park, Vista, Westminster, Yorba Linda

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