Project Solar energy house with brine-water heat pump and PV Location of the system Rapperswil SG Longitude: 8.82 Latitude: 47.23 Elevation: 417 m Map section "Current report item is not supported in this report format." This report has been created by: Vela Solaris AG 1 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
System overview (annual values) Total fuel and/or electrical energy consumption of the system [Etot] Total energy consumption [Quse] System performance (Quse / Etot) 4.2 Comfort demand -3,708.9 kwh 23,654.1 kwh Energy demand covered Overview solar thermal energy (annual values) Collector area 15.7 m² Solar fraction total 26.6% Solar fraction hot water [SFnHw] 58.8 % Solar fraction building [SFnBd] 14.5 % Total annual field yield 7,130.6 kwh Collector field yield relating to gross area 454.8 kwh/m²/year Collector field yield relating to aperture area 513.7 kwh/m²/year Max. fuel savings 1,975.1 kwh: [Electricity] Max. energy savings 11,320.2 kwh Max. reduction in CO2 emissions 1,059.5 kg Overview photovoltaics (annual values) Total gross area 32.6 m² Energy production DC [Qpvf] 9,860.3 kwh Energy production AC [Qinv] 9,345.1 kwh Total nominal power generator field 6.7 kw Performance ratio 82.1 % Specific annual yield 1,403.2 kwh/kwp/a Phase imbalance 0.001 kvah Reactive energy [Qinvr] 0 kvarh Apparent energy [Qinva] 9,345.1 kvah CO2 savings 5,012.7 kg Overview heat pump (annual values) Seasonal performance factor (without pump energy) 3.6 Total electrical energy consumption when heating [Eaux] Ground loop length (Total) Energy withdrawal of the ground-source loop Total energy savings Total reduction in CO2 emissions 5,459.2 kwh 198 m 14,229.3 kwh 14,249.4 kwh 7,643.4 kg 2 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Solar fraction: fraction of solar energy to system [SFn] Horizon line Meteorological data-overview Average outdoor temperature 10.1 C Global irradiation, annual sum 1,103.5 kwh/m² Diffuse irradiation, annual sum 577.9 kwh/m² Component overview (annual values) B/W or W/W heat pump Seasonal performance factor (without pump energy) Thermalia 15P 3.61 Energy from/to the system [Qaux] kwh 19,708.6 CO2 emissions kg 2,928.3 Fuel and electrical energy consumption [Eaux] kwh 5,459.2 Energy savings solar thermal kwh 1,975.1 CO2 savings solar thermal kg 1,059.5 Energy savings heat pump kwh 14,249.4 CO2 savings heat pump kg 7,643.4 Collector CPC 21 OEM RP Data Source ITW Number of collectors 4 Number of arrays 3 Total gross area m² 15.68 Total aperture area m² 13.88 Total absorber area m² 13.88 Tilt angle (hor.=0, vert.=90 ) 55 Orientation (E=+90, S=0, W=-90 ) 0 Collector field yield [Qsol] kwh 7,130.6 Irradiation onto collector area [Esol] kwh 16,564.6 Collector efficiency [Qsol / Esol] % 43 Direct irradiation after IAM kwh 8,481.3 3 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Ground-source loop 32 mm double U ground loop Ground loop length m 99 Number of ground-source loops 2 Distance between ground loops m 5 Earth layer 1 m 400 / Moraine, firmly deposited Inflow temperature during operation C -4.7 Outflow temperature during operation C -3 Energy withdrawal of the ground-source loop kwh 14,229.3 Photovoltaics Roof plan 1 SPR-333NE-WHT-D Manufacturer Sunpower Corp. Data Source Photon Number of modules 20 Number of modules (layout) 20 Total nominal power generator field kw 6.66 Total gross area m² 32.61 Inverter 1: Name Sunmaster XS 6500 IP44 Inverter 1: Manufacturer Mastervolt Solar BV Inverter 1: Number of phases 1 Layout 1: Number of inverters 1 Layout 1: cos phi 1 Layout 1: A number of strings 1 Layout 1: A modules per string 20 Layout 1: A orientation 0 Layout 1: A tilt angle 45 Layout 1: B number of strings 0 Layout 1: B modules per string 0 Layout 1: B orientation 0 Layout 1: B tilt angle 45 Total nominal power of all inverters kva 5 Energy production DC [Qpvf] kwh 9,860 Energy production AC [Qinv] kwh 9,345 Specific annual yield kwh/kwp/a 1,403.2 Reactive energy [Qinvr] kvarh 0 Apparent energy [Qinva] kvah 9,345 Building Single family house, normal building Heated/air-conditioned living area m² 195 Heating setpoint temperature C 20.3 Heating energy demand excluding DHW [Qdem] kwh 20,741.5 Specific heating energy demand excluding DHW [Qdem] kwh/m² 106.4 Solar gain through windows kwh 29,230.4 Total energy losses kwh 59,673.7 4 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Heating element Floor heating Number of heating/cooling modules - 22 Power per heating element under standard conditions W 1,000 Nominal inlet temperature C 35 Nominal return temperature C 25 Net energy from/to heating/cooling modules kwh 20,719.7 Hot water demand Constant Volume withdrawal/daily consumption l/d 201.4 Temperature setting C 45 Energy demand [Qdem] kwh 2,984.7 Pump Auxiliary heating Eco, medium Circuit pressure drop bar 0.031 Flow rate l/h 1,700 Fuel and electrical energy consumption [Epar] kwh 29.3 Pump Solar loop Eco, medium Circuit pressure drop bar 0.011 Flow rate l/h 485.8 Fuel and electrical energy consumption [Epar] kwh 37.9 Pump Heating loop Eco, medium Circuit pressure drop bar 0.022 Flow rate l/h 1,290.4 Fuel and electrical energy consumption [Epar] kwh 35.8 Pump Heat source Eco, large Circuit pressure drop bar 3.038 Flow rate l/h 5,100 Fuel and electrical energy consumption [Epar] kwh 74 Storage tank Combined tank Helixtherm Kombispeicher 1750 (HT1/HT2) Volume l 1,750 Height m 2.08 Material Stainless steel/st 37 Insulation Flexible polyurethane foam Thickness of insulation mm 130 Heat loss kwh 773.9 Connection losses kwh 1,115.9 5 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Loop Solar loop Fluid mixture Propylene mixture Fluid concentration % 33.3 Fluid domains volume l 137.9 Pressure on top of the circuit bar 4 Solar thermal energy to the system [Qsol] kwh Yield Photovoltaics AC [Qinv] kwh 6 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Heat generator energy to the system (solar thermal energy not included) [Qaux] kwh Solar fraction: fraction of solar energy to system [SFn] % Total fuel and/or electrical energy consumption of the system [Etot] kwh 7 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Solar thermal energy to the system [Qsol] kwh 7131 412 499 760 785 747 641 716 712 665 555 354 284 Heat generator energy to the system (solar thermal energy not included) [Qaux] kwh 19709 4510 3324 1766 737 208 0 0 0 97 931 3483 4652 Heat generator fuel and electrical energy consumption [Eaux] kwh 5459 1224 910 498 217 64 0 0 0 28 271 968 1279 Solar fraction: fraction of solar energy to system [SFn] % 26.6 8.4 13.1 30.1 51.6 78.2 100 100 100 87.3 37.3 9.2 5.8 Total fuel and/or electrical energy consumption of the system [Etot] kwh -3709 865 440-270 -748-1054 -1142-1232 -1114-825 -304 648 1028 Irradiation onto collector area [Esol] kwh 16565 831 1020 1521 1673 1801 1734 1917 1913 1620 1194 737 604 Yield Photovoltaics DC [Qpvf] kwh 9860 416 524 829 1030 1184 1207 1300 1176 905 618 368 304 Radiation onto module area [Esol PV] kwh 55764 2244 2864 4563 5750 6749 6950 7495 6824 5177 3490 2020 1638 Yield Photovoltaics AC [Qinv] kwh 9345 393 496 785 975 1123 1145 1236 1117 857 585 346 286 Electrical energy consumption of pumps [Epar] kwh 177 34 26 17 10 5 3 4 3 4 10 26 35 Total energy consumption [Quse] kwh 23654 4807 3681 2311 1299 492 247 246 240 418 1348 3718 4848 Heat loss to indoor room (including heat generator losses) [Qint] kwh 3300 127 140 188 248 374 414 457 470 388 241 133 120 Heat loss to surroundings (without collector losses) [Qext] kwh 96 4 5 7 9 11 12 13 13 10 6 4 3 8 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Collector Daily maximum temperature [ C] 9 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02
Energy flow diagram (annual balance) 10 / 10 V6.0.13.17705 / 15.04.2013 / 12:51:02