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Recycling light from solar street lights.?

May be a dumb question but here it is.
Let say a street light is powered by a battery, and the battery is charged by a solar panel during the day light hours. At night when the street light is shining, could ambient light from the street light be absorted by the solar panels to charge the batteries? Would this be perpetual energy?

It not really the efficiency of the solar panels that is the problem. In theory they can be made reasonably efficient and so you could get a nicely closed system where the energy circulates endlessly. BUT.....it wouldn't do anything useful for you. For light form street lights to serve some purpose, the light has to hit things. It has to be reflected off the roads and berms and people and footpaths..... and not get collected by efficient solar panels.
You might think that recycling at least a bit of the light produced would be of some value, but you would actually be better off not producing the extra light in the first place..... only produce the light you actually want or need for the street... that would be the sensible conservationist and energy efficient way to go.

Find Street Lights On eBay Below:

LYM23 10pcs Model Railway Train Lamp Post Street Lights Z Scale LEDs NEW
LYM23 10pcs Model Railway Train Lamp Post Street Lights Z Scale LEDs NEW
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L316Z 10pcs Model Railway Lamppost lamps Street Lights Z Scale 12V NEW
L316Z 10pcs Model Railway Lamppost lamps Street Lights Z Scale 12V NEW
$14.99
L006Z 10pcs Model Railway Lamppost lamps Street Lights Z Scale 12V NEW
L006Z 10pcs Model Railway Lamppost lamps Street Lights Z Scale 12V NEW
$14.99
L005Z 10pcs Model Railway Lamppost lamps Street Lights Z Scale 12V NEW
L005Z 10pcs Model Railway Lamppost lamps Street Lights Z Scale 12V NEW
$12.99
601226 Marklin Z scale Curved Street Lamp Light Height 33 mm 1 5 16
601226 Marklin Z scale Curved Street Lamp Light Height 33 mm 1 5 16
$22.46
Z Mrklin 1220 mini club lamps building street lights streetlamp gauge scale
Z Mrklin 1220 mini club lamps building street lights streetlamp gauge scale
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10 pcs Mini Street Lights for Z Gauge Model Trains Led Light Bulbs Model Trains
10 pcs Mini Street Lights for Z Gauge Model Trains Led Light Bulbs Model Trains
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Lot 10x Z Scale Model Street Lights Lamppost Double Heads Train Layout 1200
Lot 10x Z Scale Model Street Lights Lamppost Double Heads Train Layout 1200
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20pcs 6V 1200 White Single Head Street Lights Lamp Lamppost Z scale
20pcs 6V 1200 White Single Head Street Lights Lamp Lamppost Z scale
$3.81
S233 10 Pcs Lamps Streetlights Nostalgic 1 flammig 1in Set
S233 10 Pcs Lamps Streetlights Nostalgic 1 flammig 1in Set
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20 LED Light Metal Street Lamppost Model Train Diorama Road Scenery Z 1 200
20 LED Light Metal Street Lamppost Model Train Diorama Road Scenery Z 1 200
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50 Light Green Model Trees 4cm Train Layout Street Scenery War Game Diorama
50 Light Green Model Trees 4cm Train Layout Street Scenery War Game Diorama
$3.99
20Pcs 1200 Z Scale Model Street Lights Single Head Railway Lamp Post Layout US
20Pcs 1200 Z Scale Model Street Lights Single Head Railway Lamp Post Layout US
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20P 1 200 Z Model Layout Street Park Light Layout Lamppost Single Head white
20P 1 200 Z Model Layout Street Park Light Layout Lamppost Single Head white
$3.60
Y1 3 Z 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMP POSTS LIGHT NEW
Y1 3 Z 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMP POSTS LIGHT NEW
$6.00
15 pcs Z gauge Antique Lampposts 6V street lights R11 3
15 pcs Z gauge Antique Lampposts 6V street lights R11 3
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10 MODEL LED LIGHTS METAL LAMP POST TRAIN GARDEN PARK STREET SCENERY Z Scale
10 MODEL LED LIGHTS METAL LAMP POST TRAIN GARDEN PARK STREET SCENERY Z Scale
$8.43
10Pcs 1200 Z Scale Model LED Light Lamp Post 2 Head Railway Street Scenery
10Pcs 1200 Z Scale Model LED Light Lamp Post 2 Head Railway Street Scenery
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S1 51 Z 1220 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMPPOST LIGHT
S1 51 Z 1220 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMPPOST LIGHT
$6.00
SL1B Z 1220 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMPPOST LIGHT
SL1B Z 1220 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMPPOST LIGHT
$11.50
10Pcs 1200 Z Scale Model Cars w Lights Train Street Parking Diorama Scenery US
10Pcs 1200 Z Scale Model Cars w Lights Train Street Parking Diorama Scenery US
$13.59
10pcs Model Cars w Lights Train Street Parking Diorama Scenery Z Scale 1200
10pcs Model Cars w Lights Train Street Parking Diorama Scenery Z Scale 1200
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Z Scale 1200 Model Cars w Lights Train Street Parking Diorama Scenery 10pcs
Z Scale 1200 Model Cars w Lights Train Street Parking Diorama Scenery 10pcs
$12.99
10 x Z N scale Model Railroad train Lamp posts Led street light Lamps YD35SW
10 x Z N scale Model Railroad train Lamp posts Led street light Lamps YD35SW
$9.99
10 x Z scale Model Railroad train Lamp posts Led street lights Lamps YD25SW
10 x Z scale Model Railroad train Lamp posts Led street lights Lamps YD25SW
$9.99
LQS14 10 Model Railway Train Lamp Post Street Lights Z Scale LEDs Platform NEW
LQS14 10 Model Railway Train Lamp Post Street Lights Z Scale LEDs Platform NEW
$8.99
LQS15 10 Model Railway Train Lamp Post Street Lights Z Scale LEDs Platform NEW
LQS15 10 Model Railway Train Lamp Post Street Lights Z Scale LEDs Platform NEW
$11.99
LNH03CN 5pcs Model Railway Led Lamppost Lamps Street Lights Z Scale 3cm 12V New
LNH03CN 5pcs Model Railway Led Lamppost Lamps Street Lights Z Scale 3cm 12V New
$14.99
T93DCN 10pc Model Railway Led Lamppost Lamps Street Lights Z Scale 35cm 12V New
T93DCN 10pc Model Railway Led Lamppost Lamps Street Lights Z Scale 35cm 12V New
$14.99
LQS05CN 10pcs Model Railway Train Lamp Post Street Light N Z Scale LEDs NEW
LQS05CN 10pcs Model Railway Train Lamp Post Street Light N Z Scale LEDs NEW
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40pcs 1300 Scale Model Street Light Lamppost Park Layout Single end Lamp
40pcs 1300 Scale Model Street Light Lamppost Park Layout Single end Lamp
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Y7 10 Z 1220 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMP POSTS LIGHT
Y7 10 Z 1220 10pcs SCALE MODEL TRAIN RAILWAY LAYOUT STREET LED LAMP POSTS LIGHT
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30 pcs Z scale lights Model Train Street Lights Z Gauge Model Railroad Supply
30 pcs Z scale lights Model Train Street Lights Z Gauge Model Railroad Supply
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40pcs 1300 Scale Model Street Light Single end Lamp Park Street Layout
40pcs 1300 Scale Model Street Light Single end Lamp Park Street Layout
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120Modellamppoststreet lightswarm white LEDS50B12Vmodel lamppost
120Modellamppoststreet lightswarm white LEDS50B12Vmodel lamppost
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20pcs 1200 Scale White Model Railroad Light Street Light Double Head Model Toy
20pcs 1200 Scale White Model Railroad Light Street Light Double Head Model Toy
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50pcs Light Green Trees Model Train Street Park Wargame Diorama 1250 Z 4CM
50pcs Light Green Trees Model Train Street Park Wargame Diorama 1250 Z 4CM
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10PCS 1200 Model Trains Metal Light Poles Wired LED Lighted Street Lamps Single
10PCS 1200 Model Trains Metal Light Poles Wired LED Lighted Street Lamps Single
$11.11
1300 Scale Model Trains Metal Light Poles Wired LED Lighted Street Lamps 1 300
1300 Scale Model Trains Metal Light Poles Wired LED Lighted Street Lamps 1 300
$2.43
Z Scale Model Trains Metal Light Poles Wired LED Lighted Street Lamps 1 200
Z Scale Model Trains Metal Light Poles Wired LED Lighted Street Lamps 1 200
$2.43


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