Maximizing the Silicon Solar Cell Energy Production for the Next Generation
Prof. Naftali Eisenberg b-Solar, Jerusalem French-Israeli Workshop on Renewable Energies November 2010
LIST OF TOPICS 1.
INTRODUCTION
2.
FEED--IN TARIFF PROGRAM FEED
3.
THE BIFACIAL CELL CONCEPT
4.
5.
BIFACIAL MODULE CHARACTERIZATION PROCEDURE AND FIELD TEST RESULTS CONCLUSION
1. INTRODUCTION
French-Israeli Workshop on Renewable Energies November 2010
1. INTRODUCTION SOLAR IRRADIATION VERSUS ESTABLISHED GLOBAL ENERGY RESOURCES
ANNUAL SOLAR IRRADIATION TO THE EARTH YEARLY POTENTIAL OF RENEWABLES ENERGIES TOTAL RESERVES OF FOSSIL FUELS GLOBAL ANNUAL ENERGY CONSUMPTION
French-Israeli Workshop on Renewable Energies November 2010
HISTORICAL DEVELOPMENT OF GLOBAL CUMULATIVE PV POWER INSTALLED
French-Israeli Workshop on Renewable Energies November 2010
2. FEED--IN TARIFF PROGRAM
French-Israeli Workshop on Renewable Energies November 2010
A FeedFeed-in Tariff
(FiT FiT,, feed feed--in law, advanced
is a policy mechanism designed to encourage the adoption of renewable energy sources and to help accelerate the move toward grid parity. parity. renewable tariff or renewable energy payments)
French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
DEVELOPMENT OF UTILITY PRICES AND PV GENERATION COSTS
HOW TO MAKE Si PV COST-COMPETITIVE ? 0. Lower the cost 1. Increase Efficiency ($/Wp) 2. Increase Energy Yield (kWh/kWp) French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
HOW TO MAKE Si PV COST-COMPETITIVE ? 0. Lower the cost 1. Increase Efficiency ($/Wp) 2. Increase Energy Yield (kWh/kWp) French-Israeli Workshop on Renewable Energies November 2010
2010 Multi Junction
French-Israeli Workshop on Renewable Energies November 2010
HOW TO MAKE Si PV COST-COMPETITIVE ? 0. Lower the cost 1. Increase Efficiency ($/Wp) 2. Increase Energy Yield (kWh/kWp) French-Israeli Workshop on Renewable Energies November 2010
3. THE BIFACIAL CELL CONCEPT
French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
THE BIFACIAL SOLAR CELL CONCEPT: ABILITY TO CONVERT THE LIGHT INCIDENT ON BOTH SIDES OF THE CELL
French-Israeli Workshop on Renewable Energies November 2010
BIFACIAL SPACE APPLICATION
ELECTRICAL POWER GENERATION ON LOW ALTITUDE SATELLITES French-Israeli Workshop on Renewable Energies November 2010
BIFACIAL TERRESTRIAL APPLICATION
French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
REQUIREMENTS FOR A BIFACIAL CELL WITH ONE COLLECTING JUNCTION
* SUPPRESSION OF BACK SURFACE RECOMBINATION * MINORITY CARRIER DIFFUSION LENGTH IN THE BASE REGION : L > d (WHERE d IS THE BASE THICKNESS)
French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
French-Israeli Workshop on Renewable Energies November 2010
4. CHARACTERIZATION PROCEDURE FOR BIFACIAL MODULE AND FIELD TEST RESULTS
French-Israeli Workshop on Renewable Energies November 2010
ROOFTOP TEST FIELD IN JERUSALEM
French-Israeli Workshop on Renewable Energies November 2010
HOW TO QUALIFY ONLY ONE SIDE
French-Israeli Workshop on Renewable Energies November 2010
NON UNIFORMITY OF BACK IRRADIANCE VS. MODULE ELEVATION
French-Israeli Workshop on Renewable Energies November 2010
ENERGY GAIN AS A FUNCTION OF DIFFUSE TO GLOBAL RADIATION RATIO
WINTER SUMMER
French-Israeli Workshop on Renewable Energies November 2010
DAILY GAIN OF A BIFACIAL MODULE VS. MONOFACIAL
French-Israeli Workshop on Renewable Energies November 2010
ANNUAL GAIN OF A BIFACIAL MODULE VS. MONOFACIAL
French-Israeli Workshop on Renewable Energies November 2010
5. CONCLUSION
French-Israeli Workshop on Renewable Energies November 2010
BIFACIAL PV CELL ACHIEVES TWO TARGETS
Higher front efficiency cell i.e. improved $/Wp Increased Energy Collection i.e. improved kWh/kWp
French-Israeli Workshop on Renewable Energies November 2010