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Mobile ViewAIR CONDITIONING & HEAT PUMP SYSTEMS AIR BYPASS LEAKS AIR LEAK DETECTION TOOLS AIR LEAK MINIMIZATION AIR POLLUTANTS, COMMON INDOOR AIR SEALING STRATEGIES ENERGY SAVINGS in BUILDINGS ENERGY SAVINGS PRIORITIES ENERGY SAVINGS RETROFIT CASE STUDY ENERGY SAVINGS RETROFIT LEAK SEALING GUIDE ENERGY SAVINGS RETROFIT OPTIONS EVAPORATIVE COOLING SYSTEMS EXTERIORS of BUILDINGS FRAMING DETAILS for BETTER INSULATION FRAMING DETAILS for DOUBLE WALL HOUSES FREEZE-PROOF A BUILDING HEAT LOSS CALCULATIONS HEAT LOSS in BUILDINGS HEAT LOSS DETECTION TOOLS HEAT LOSS INDICATORS HEAT LOSS R U & K VALUE CALCULATION HOUSEWRAP AIR & VAPOR BARRIERS HOUSEWRAP - TYVEK INSTALLATION DETAILS HUMIDITY LEVEL TARGET ICE DAM PREVENTION INDOOR AIR QUALITY & HOUSE TIGHTNESS INSULATION & VENTILATION INSPECTION & IMPROVEMENT FOUNDATION CRACKS & DAMAGE GUIDE HEATING SMALL LOADS INDOOR AIR QUALITY & HOUSE TIGHTNESS INSULATION & VENTILATION INSPECTION & IMPROVEMENT INTERIORS of BUILDINGS MOISTURE CONTROL in BUILDINGS PLUMBING TOPICS STRUCTURAL INSPECTIONS & DEFECTS HEATING SYSTEMS RADIANT SLAB FLOORING CHOICES RADIANT SLAB TUBING & FLUID CHOICES ROOFING SHEATHING, FOIL FACED - VENTS SOLAR ENERGY SYSTEMS PASSIVE SOLAR DESIGN METHOD PASSIVE SOLAR HEAT PERFORMANCE PHOTOVOLTAIC POWER SYSTEMS SLAB INSULATION, PASSIVE SOLAR SOLAR COLLECTOR AIR or GAS COLLECTION SOLAR COLLECTOR FILMS SOLAR COLLECTOR WOOD HOUSINGS SOLAR HEATING SYSTEMS SOLAR HOT WATER HEATERS SOLAR HOUSE EVALUATION STRUCTURAL INSPECTIONS & DEFECTS SUMP PUMPS GUIDE THERMAL EXPANSION of MATERIALS THERMAL MASS in BUILDINGS THERMAL MASS in UPSTAIRS THERMAL TRACKING Indicates Heat Loss VAPOR BARRIERS & AIR SEALING at BAND JOISTS VAPOR BARRIERS & CONDENSATION in BUILDINGS VAPOR BARRIERS & HOUSEWRAP VAPOR CONDENSATION & BUILDING SHEATHING VENTILATION in BUILDINGS WATER HEATERS AGE of WATER HEATERS ALTERNATIVE HOT WATER SOURCES WATER SOFTENERS WATER ENTRY in BUILDINGS WIND TURBINES WINDOWS & DOORS WINTERIZE A BUILDING WOOD Burning Heaters Fireplaces Stoves More Information InspectAPedia Blog - News Updates Air Conditioning & Heat Pumps Bookstore Electrical Environment Exteriors Heating Home Inspection Insulate Ventilate Interiors Mold Inspect/Test Plumbing Water Septic Roofing Structure Accuracy & Privacy Policies Contact Us |
Here we discuss photovoltaic electrical power supply products used in solar energy systems. Sketch at page top courtesy of Lennox Industries. Here we include solar energy, solar heating, solar hot water, and related building energy efficiency improvement articles including material reprinted/adapted/excerpted with permission from Solar Age Magazine - editor Steven Bliss. Contact us to suggest text changes and additions and, if you wish, to receive online listing and credit for that contribution. © Copyright 2009 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use links at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. Shopping Advice for Photovoltaic Power Supplies for Solar SystemsThe link to the original Q&A article in PDF form immediately below is followed by an expanded/updated online version of this article.
The question-and-answer article below paraphrases, quotes-from, updates, and comments an original article, (see links just above) from Solar Age Magazine and written by Steven Bliss. How Much Photovoltaic Power do I Need and How Much Should I Spend on Photovoltaic Power SupplyQuestion: I am building a 3000 square foot passive solar house in Aspen, CO, 1500 feet away from the local power company line. They want $11,000. (1985 prices) for an underground line to the house. How much photovoltaic power can I get for that much money? My minimum power consumption is around 500 kWh/month. Maximum electrical energy consumption would be about 1000 kWh/Month. I have a good solar site and a 5-kW backup electrical generator. -- Tim Howe, Old Snowmass, CO. Answer: According to Solar Age technical editor Joe Kohler, of KLR Engineering, you should be able to buy an 840-peak watt photovoltaic power supply system, with an inverter, charge controls, meters, racks, installation, and 1200 amp-hours of battery storage for your $11,000. (at 1980's prices for photovoltaics). You could expect to get about 200 kWh from this system in the best summer month, and close to 100 kWh in the dead of winter. With a very efficient refrigerator, florescent lights, and a gas-powered water heater and stove, you should be able to live quite well. For another $4000. you could buy half again as much photovoltaic power. (Again, these are 1980's prices). WIth moderate conservation and a 1260-watt photovoltaic electrical system, no one will know that you are not on the grid. Remember that you can expect to get state and federal tax credits of up to $7000. when you buy the system, so you could spend up to $18,000. for photovoltaic power (PV power) and still have a net cost about equal to what the electrical power company wants to charge to connect your building to the power grid. You would need to have large tax liabilities to take all the tax credits at once. Also keep in mind that photovoltaic electrical power systems are modular and expandable. You could add photovoltaic solar panels as your budget permits and, at least until the end of 1985 in Colorado, photovoltaic electrical system installers could take tax credits again for add-on purchases. Check with your state and federal tax authorities on current tax credits available for photovoltaic electrical systems as well as other passive solar design components. ... Technical Reviewers & References
Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. AIR CONDITIONING & HEAT PUMP SYSTEMSAIR BYPASS LEAKS AIR LEAK DETECTION TOOLS AIR LEAK MINIMIZATION AIR POLLUTANTS, COMMON INDOOR AIR SEALING STRATEGIES ENERGY SAVINGS in BUILDINGS ENERGY SAVINGS PRIORITIES ENERGY SAVINGS RETROFIT CASE STUDY ENERGY SAVINGS RETROFIT LEAK SEALING GUIDE ENERGY SAVINGS RETROFIT OPTIONS EVAPORATIVE COOLING SYSTEMS EXTERIORS of BUILDINGS FRAMING DETAILS for BETTER INSULATION FRAMING DETAILS for DOUBLE WALL HOUSES FREEZE-PROOF A BUILDING HEAT LOSS CALCULATIONS HEAT LOSS in BUILDINGS HEAT LOSS DETECTION TOOLS HEAT LOSS INDICATORS HEAT LOSS R U & K VALUE CALCULATION HOUSEWRAP AIR & VAPOR BARRIERS HOUSEWRAP - TYVEK INSTALLATION DETAILS HUMIDITY LEVEL TARGET ICE DAM PREVENTION INDOOR AIR QUALITY & HOUSE TIGHTNESS INSULATION & VENTILATION INSPECTION & IMPROVEMENT FOUNDATION CRACKS & DAMAGE GUIDE HEATING SMALL LOADS INDOOR AIR QUALITY & HOUSE TIGHTNESS INSULATION & VENTILATION INSPECTION & IMPROVEMENT INTERIORS of BUILDINGS MOISTURE CONTROL in BUILDINGS PLUMBING TOPICS STRUCTURAL INSPECTIONS & DEFECTS HEATING SYSTEMS RADIANT SLAB FLOORING CHOICES RADIANT SLAB TUBING & FLUID CHOICES ROOFING SHEATHING, FOIL FACED - VENTS SOLAR ENERGY SYSTEMS PASSIVE SOLAR DESIGN METHOD PASSIVE SOLAR HEAT PERFORMANCE PHOTOVOLTAIC POWER SYSTEMS SLAB INSULATION, PASSIVE SOLAR SOLAR COLLECTOR AIR or GAS COLLECTION SOLAR COLLECTOR FILMS SOLAR COLLECTOR WOOD HOUSINGS SOLAR HEATING SYSTEMS SOLAR HOT WATER HEATERS SOLAR HOUSE EVALUATION STRUCTURAL INSPECTIONS & DEFECTS SUMP PUMPS GUIDE THERMAL EXPANSION of MATERIALS THERMAL MASS in BUILDINGS THERMAL MASS in UPSTAIRS THERMAL TRACKING Indicates Heat Loss VAPOR BARRIERS & AIR SEALING at BAND JOISTS VAPOR BARRIERS & CONDENSATION in BUILDINGS VAPOR BARRIERS & HOUSEWRAP VAPOR CONDENSATION & BUILDING SHEATHING VENTILATION in BUILDINGS WATER HEATERS AGE of WATER HEATERS ALTERNATIVE HOT WATER SOURCES WATER SOFTENERS WATER ENTRY in BUILDINGS WIND TURBINES WINDOWS & DOORS WINTERIZE A BUILDING WOOD Burning Heaters Fireplaces Stoves
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11/04/2009 - 09/05/2006 - InspectAPedia.com/Energy/Photo_Voltaics.htm - © 2009 - 1988 Copyright Daniel Friedman All Rights Reserved - InspectAPedia® is a Registered U.S. Trademark