Solar Panels For Homes

What is the overall efficiency of a solar PV system?

It would not be unusual for PV panels to be 15% efficient, that is, 15% of the incident energy is turned into electricity. Note that when a PV system is installed on a residence, that system rarely takes up all of the suitable roof space, so efficiency is not an issue, cost is.

In a grid-tied system, 4-7% of the energy from the panels is lost in the various components of the system, mainly the inverter.

In a system using batteries, another 25% may be lost to the inefficiency of charging and discharging the batteries.

The Energy Credit Card from Brobeck Solar Energy

Tripp Lite PV150 PV 150W 12V DC to AC Portable Inverter with DC Auto Power Outlet $22.91 300 watts peak150 watts continuous power Low-battery alarm with auto-shut-off prevents deep battery dischargeLightweight design with all-metal housingClean quiet operation1 AC outlets 3 3/4"W x 1 3/4"H x 5 3/4"DPV-375: 4 1/4"W x 2"H x 7"DPV-600 6 1/4W x 4"H x 10 1/4"DIncludes DC cigarette lighter plug...

Tripp Lite PV2000FC PV 2000W 12V DC to AC Inverter Plus with Charge/Load LED's $383.26 Harness your vehicle''s battery to efficiently power office equipment on the road or power tools at a work site. Continuously supplies up to 2000 watts of 120V AC power to 2 AC outlets from any 12V battery or automotive DC source. Frequency control locks AC output at 60Hz for operating stability of motor loads. Includes a set of high current DC input terminals for simple, permanent installation. H...

Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel with Sharp Module $499.95 High-efficiency polycrystalline cells are ideal for areas with high sun exposure. 12 Volt solar battery charger delivers 80 Watts for homes, boats, RVs and back-up power. Also designer for 12V battery charging and solar power stations, pumps, beacons, lighting equipment and more! Works in all weather conditions. Completely weather resistant. Requires 30 Amp controller Item# 336615 (sold separately...

Instapark® NEW All Black 100W Mono-crystalline Solar Panel, 100 Watt $289.90 Tired of all the noise and smell from your diesel generator? The Instapark SP-100W solar panel offers you a quiet, clean while carbon-free alternative. Capable of converting virtually unlimited solar energy into clean, green, most importantly, free electricity, this solar panel is made of high efficiency mono-crystalline solar cells embedded in transparent vinyl acetate behind tempered glass wit...

Ensupra Grid Tie Inverter 500W,New Design,1Yr.Wrnty,25-46VDC to 110V/120VAC,Power from Solar Panel, Wind Generator, Hydro or Storage Battery,1 Year Full Warranty $229.00 Ensupra grid tie power inverter can obtain the solar energy from solar panel, and can tie to the grid through its output cable with no extra equipment. The installation is Do-It-Your Self (DIY).When the sun shines, the PV panel will produces DC voltage, and the grid tie inverter will change the DC voltage to AC voltage and puts out power to the home grid, saving electricity. INSTALLATION: 1, Conne...

Renewable and Efficient Electric Power Systems $71.67 This is a comprehensive textbook for the new trend of distributed power generation systems and renewable energy sources in electric power systems. It covers the complete range of topics from fundamental concepts to major technologies as well as advanced topics for power consumers.An Instructor's Manual presenting detailed solutions to all the problems in the book is available from the Wiley editor...

Solar Cells: Operating Principles, Technology, and System Applications (Prentice-Hall series in solid state physical electronics) $44.95 ...

High-Efficient Low-Cost Photovoltaics: Recent Developments (Springer Series in Optical Sciences) $114.05 A bird's-eye view of the development and problems of recent photovoltaic cells and systems and prospects for Si feedstock is presented. High-efficient low-cost PV modules, making use of novel efficient solar cells (based on c-Si or III-V materials), and low cost solar concentrators are in the focus of this book. Recent developments of organic photovoltaics, which is expected to overcome it...