Case Studies

Solar Power Case Studies: Lima, NY 8.1 kW Solar Electric System

Saturday, January 1st, 2011 by Hal Smith

Challenge

This new home is looking to be LEED certified and Net Zero. We can help!

Solution

This 8,100 W (8.1 kW) grid-connected solar electric (PV, photovoltaic) system was installed as a ground-mounted array of thirty-six (36) SunPower 225W solar modules oriented South on two (2) Direct Power and Water adjustable-tilt top-of-pole mounts. The poles hold the modules arranged in landscape, and each have typical dimensions ranging from 15.4 ft x 9.7 ft x 14.3 ft (width x height x depth) at 25° tilt to 15.4 ft x 15.9 ft x 9.1 ft (width x height x depth) at 55° tilt. The system is configured electrically as four (4) DC circuits (strings) of nine (9) series connected modules providing input to one (1) SunPower/SMA 8000m, 8.0kW inverter. This inverter provides grid-synchronous AC output and interfaces to the electric utility through a circuit breaker or direct tap at the Customer's main service panel (MSP), as existing infrastructure allows. System power production (kW) and cumulative energy (kWh) generation is recorded and displayed by a SunPower monitoring system (including wall panel and web portal display), as well as by a digital display on the inverter and an electromechanical meter. As designed, this system should generate an average of 26.7 kWh/day = 9,761 kWh/year, where daily energy production is both weather and seasonally dependent. This energy production is equivalent to 72% of the customer's estimated future home electrical usage, and corresponds to a CO2 (greenhouse gas) emissions savings of 14,641 lbs per year.

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865 County Road 6
Phelps, NY 14532
1-315-688-1945


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1730 Mecklenburg Rd Suite B
Ithaca, NY 14850
1-607-218-8448


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Liverpool, NY 13088
1-315-992-6300


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140A Metro Park
Rochester, NY 14623
1-585-200-3364
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