Comparison of Technologies-
Applications Environment
Critical Manufacturing Suitable
Technology Maturity attributes technology Geography Usage
Rooftops (c & r)1
PV/Mono Crystalline Full Installation Fully mature 50 degrees
, Adhesive, North and , Solar farms;
Silicon
degrades* South of Urban and Rural
, land^ equator
Rooftops (c & r)1
PV/Multi Crystalline Almost full Installation Mature, needs 50 Degrees
, Adhesive, improvement North & , Solar farms;
Silicon
South of
degrades* Urban and Rural
equator
Rooftops (c & r)1
Production Cadmium Around the
PV TF/CdTe Developed
toxicity, world. Except , façade, Solar
low for higher farms; Urban
efficiency, latitudes and Rural
flexible
material
Rooftops (c & r)1
First Low Developed Around the
PV TF/CIGS
consumer efficiency, needs world , , façade, Solar
Flexible except for farms; Urban
improvement
higher
material and Rural
latitudes

Comparison of Technologies-
Applications Environment
Rooftops (c & r)1
Around the
PV Low cost Needs world, except , façade, Solar
First Consumer
TF/amorphous substrate, low for higher farms; Urban
improvement
Silicon efficiency latitudes and Rural
Rooftops (c & r)1
Inexpensive, , portable
PV Organic TF Lab Lab Not known
lightweight, devices,
vehicles, facade;
degrades*
Urban and Rural
Rooftops (c & r)1
Flexibility, light
PV Nanosolar , portable
Lab weight, low cost Lab Not known
devices,
Film
garments,
facade; Urban
and Rural
High sunlight Solar farms;
Advanced Tracking, high intensity area ,
CPV Developed Urban and Rural
efficiency, low between 40
learning
degrees north
cost
and south of
equator

Comparison of Technologies-
Applications Environment
High Intensity Solar farms;
High efficiency, between 40
XCPV Lab Demonstration Rural
low cost, degrees south
and North of
unproven#
equator
Rooftops (c & r)1
High efficiency, High Intensity
usable for low between 40 , Solar farms;
Micro CSP First consumer Demonstration
power need, degrees south Urban and Rural
and North of
unproven#
equator
High efficiency,
low cost/unit High Intensity Solar farms;
power, tarcking, between 40 Rural, empty
CSP Full Mature
load centre far degrees south land
and North of
away, land^
equator
Notes:
*-- degrades under high intensity and prolonged exposure to sunlight
#--- Unproven on the field for sufficient time
^ ---- Land requirement huge to generate economical power
1---- c & r commercial and residential rooftops