UNIVERSIDADE FEDERAL DE SANTA CATARINA DEPARTAMENTO DE ENGENHARIA CIVIL METODOLOGY TO CALCULATE THE POTENTIAL OF ENERGY GENERATION IN URBAN AREAS Autores: Isabel Tourinho Salamoni isamoni@labeee.ufsc.br Paulo Knob Ricardo Ruther

INTRODUCTION  Brazil – problems in relation the energy questions.  Strategy : to increase the energy efficiency.  Photovoltaic systems - causing minor environmental demage; - next to the point to consumption.  Knowing the capacity that one photovoltaic plant has to generate energy: - generating source of energy; - increases the capacity condition of the local eletric net.

AIM  Potential of photovoltaic generation in urban areas;  Evaluating the relation between the generated energy and the consumption;  Comparative analysis between the demand curve and the solar generated curve.

METHODOLOGY  Studied of two sectors of the city of Florianópolis – distinct characteristcs;  Verifyed the annual energy consumptions of each sector – date supplied for the corresponding feeders.

METODOLOGY – Stuidied Sectors Table 1: Values of energy consumption Table 1: Values of energy consumption in the center feeder. METODOLOGY – Stuidied Sectors Table 1: Values of energy consumption FEEDER ICO 07   FEEDER INE 02 MONTH Ampère-hour/month MWh/month 2001 – may 88.708,00 2.120,32 70.529,00 1.685,80 2001 – june 73.677,00 1.761,04 51.218,00 1.224,22 2001 – julhy 86.099,00 2.057,96 (*) 122,00 2,91 2001 – august 44.922,00 1.073,73 (*) 32.561,00 778,28 2001 - september 71.448,00 1.707,77 64.295,00 1.536,79 2001 - october 79.559,00 1.998,55 57.807,00 1.381,72 2001 - november 84.442,00 2.018,35 49.041,00 1.172,19 2001 - dezember 106.222,00 2.538,95 83.329,00 1.991,75 2002 – january 123.888,00 2.961,20 123.038,00 2.940,89 2002 - february 109.879,00 2.626,36 101.636,00 2.429,33 2002 – march 145.859,00 3.486,36 98.573,00 2.356,12 2002 – april 118.011,00 2.820,73 76.448,00 1.827,28    

METODOLOGY – Studied Sectors

METODOLOGY – Calculation of radiation and Photovoltaic generation  RADIASOL software – to calculate the amount of incident radiation  solar radiation datebase of the city of Florianópolis available from LABSOLAR.  The amount of Photovoltaic energy generated will be obtained as a function of the installed power, the efficiency of the inverter system and the incident radiation on the panel plane.

METODOLOGY – Tilt and orientation Quantifying the roof areas  Calculated the amount of energy generated. First case Tilt = 0 degree. Global idea of the potential of photovoltaic generation. Second case – ideal conditions  Tilt = local latitude = 27 degrees. Thirth case – real conditions  samples

METODOLOGY – Tilt and orientation To verify if there is a large variation of energy generation between the observed cases. Significant variation  real conditions.

RESULTS

RESULTS

CONCLUSIONS Photovoltaic Systems  a lot of benefits - environmental; - to the utilities. The study was carried out with the use of photovoltaic panels based in thin films of amourphous silicon – less efficient tecnhology of the market.