Photovoltaic Products

(Page 2 of 3)

November/December 1985
 
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SOLAR LEARNING

RELATED CONTENT

Energy Sciences' 120 Solar Experiments is just the gift for a youngster who aspires to learn about photovoltaics. The kit, priced at $31.95, contains parts and instructions to help build everything from radios to burglar alarms that run on photovoltaic power.

SOLAR COLD

Sun Frost refrigerators, designed by Dr. Larry Schlussler, are generally recognized to be the most efficient available anywhere, running on any form of power. And though they're not sold with PV panels directly, Sun Frost refrigerators are designed specifically to operate on photovoltaic power. Available in sizes ranging from 4 to 16 cubic feet—retailing for between $1,250 and $2,500, plus crating—Sun Frost refrigerators may be the answer to the problem of providing food storage capability with low-power photovoltaic electrical systems.

SOLAR WIND

When taken to its roots, wind power is a form of solar energy, since the sun causes the differential heating of the atmosphere that causes air to move. However, we don't usually think of wind power being so directly solar as it is in the case of Energy Sciences' Solar Kinetic Wind Generator. At $34.95, it's food for thought: windmill or fan?

NI-CAD CHARGER

Elsewhere in this issue (page 50), we show you how to build a nickel-cadmium battery charger that runs on 12 volts. Frankly, we wanted to make it photovoltaic-powered, but the cheapest we could manage was about twice the price of Solar Electric Engineering's solar-powered battery charger. True, SEE's charger won't handle 9-volt cells, but it's still quite a deal. Why, at $19.95, it's not much more expensive than a conventional ni-cad charger.

SOLAR NI-CAD

If a photovoltaic charger for ni-cad batteries is just too cumbersome, MJR Company has the answer. It's D-cell-sized ni-cad has the PV panel built in! All you do is set the dead battery in full sunlight; 28 hours later-about twice the recommended wall-outlet charging period-it will be restored to its full 1.2 volt, 1.2 amp-hour capacity. Perfect for backpacking and other remote uses, they retail for $20 each.

SOLAR SHOCKER

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