Boletín agroecológico

How to build a

Solar
Solar Bottle Bulb

Materials
•
•
•
•
•

PET soda bottle
Galvanized Iron (GI) sheet
Epoxy/Rubber sealant
Bleach
Filtered Water

How to ASSEMBLE the SolarBottle Bulb

Cut
approximately
9 x 10 inches
of GI sheet
(corrugated or flat,
depending on the roof
where Solar Bottle Bulb
will be installed)

Recommended GI sheet: 0.06 gauge 24

How toASSEMBLE the Solar Bottle Bulb
At the center of
the GI sheet, draw
2 circles
(outer: similar to the
circumference of the
soda bottle; inner: 1
cm smaller).

Cut the inner,
smaller circle.How to ASSEMBLE the Solar Bottle Bulb
Cut the 1 cm
difference radially,
making strips and
bend upwards,
perpendicular
to the GI
sheet.

How to ASSEMBLE the Solar Bottle Bulb
Usingsandpaper,
scratch the surface
around the upper
third portion of the
PET bottle where
the GI sheet will be placed,
to allow the epoxy or rubber
sealant to stick better.

How to ASSEMBLE the SolarBottle Bulb
Insert the bottle
into the GI sheet
until the upper
third.
Apply rubber
sealant on the strips
above and around
the area below.
Wait to dry.

How to ASSEMBLE the Solar Bottle BulbFill the PET
bottle with
filtered water
and ~10 mL
(2 capfuls) of
bleach.
Cover with its
original cap.

The solar bottle bulb is now
ready for installation!

How to INSTALL the SolarBottle Bulb
Cut a hole on
the roof,
similar to the
bottle
circumference.

How to INSTALL the Solar Bottle Bulb
Apply rubber sealant
around the hole.

How to INSTALL the Solar Bottle BulbPlace the solar bottle
bulb into the hole.
Make sure it is
firmly in place.

How to INSTALL the Solar Bottle Bulb
Drill 3-4 holes on
each side of the
solar bottle bulb
and put in therivets.

How to INSTALL the Solar Bottle Bulb
Apply rubber sealant on all sides of the GI
sheet of the solar bottle bulb to avoid leakage.
Make sure
to cover the
rivets.

How to INSTALL the...