My Decision for Solar Technology against Nuclear Electric Power ( Japanese
 
Update : September 1st, 2019
   I am Norio, who live in Japan and I will tell my story of installing Solar Technology for the home as following.
   On 11th March, 2011. Most serious Accident of Fukushima Dai-ichi(1st) Nuclear Electric Power Plant hit by HUGE Earthquake and Tsunami made me decide to install a Generator unit of Solar System to save more energy, to have the first step with doing away , saying Sayonara "Nuclear Power Plant" from Japan.
   Speaking about saving energy, I have already installed the home electric power generation by gas engine called ECO-WILL (Tokyo Gas Co.), which also providing hot water and floor heating, since 2007. It is only for home use, not to feed back to Tokyo Electric Co.
In addition, though we all family have been trying to do something for saving with many ways for long time, in facing the Serious Accident, we really felt to make more and more effort to save ENERGY for our planet.
   I will tell you my story of Solar System Installation and Generation Record below. I will be very happy if my story helps you starting SOLAR life!!


 
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My solar system installation consists of the following:
(1) Equipment / Parts
___Solar modules : Kyosera KJ775P__77.5 watt solar modules * 28 = 2,170w__(Photo : upper Left)
__________________________KJ62P__62.0 watt solar modules * 8 = ___496w
__________________________KJ46P__46.0 watt solar modules * 9 = ___414w
_______________________________________________________Total __3,080w
All modules on the 45 degree grade roof is facing South-East (-35 degree)
___Inverter : Kyosera PVN-403F 4.0kw inverter__(Photo : upper Right)
___Display for Monitoring system : Kyosera PMD47C-R 7.0 inches monitor_(Photo : three on bottom)

 
Solar modules Kyosera KJ** & Roof Inverter Kyosera PVN-403F
Moniter Kyosera PMD47C-R Moniter Kyosera PMD47C-R Moniter Kyosera PMD47C-R
(2) Location : Konosu City, Saitama, Japan (just north of Tokyo)
(3) Installation Date/Month/Year : 12 July, 2011
(4) Installation Cost : Final Cost__$19,713-
____________________Paid_______ $24,625-
____________________Covered_______$625- by Konosu City
_________________________________$1,538- by Saitama Pref.
_________________________________$1,838- by the Government.

_(5) Consumption from the grid(kwh), Generation (kwh) and Saving Rate (%) varies by month  
Month
(2011)
Consumption from the grid
(Drawing power out except EcoWill Generation)
Ave of "08-"10 / "11
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 606

***

*** *** -21.0  
February 477 / 494 *** *** *** _-3.6  
March 388 / 300 *** *** *** _22.7 March 11, Disaster happened & Big Decision to save energy
April 414 / 301 *** *** *** _27.3  
May 432 / 329 *** *** *** _23.8  
June 365 / 296 *** *** *** _18.9  
July 462 / 372 142 _72 _70 _19.5 July 12, Solar Power System Installation
August 557 / 279 268 124 144 _49.9  
September 494 / 210 270 _98 172 _57.5  
October 354 / 211 232   79 153 _40.4  
November 410 / 212 231   63 168 _48.3  
December 404 / 256 263   62 201 _36.6  
Total
5,258 / 3,866 1,406 498 908 _26.5
Aug - Dec _47.4
"Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2012)
Consumption from the grid
(Drawing power out except EcoWill Generation)
Ave of "08-"10 / "12
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 255

291

 59 232 49.1  
February 477 / 239 262  43 219 49.9  29 days / leap year
March 388 / 140 266  56 210 63.9  
April 414 / 166 293  77 216 59.9  
May 432 / 159 320 108 212 63.2  
June 365 / 169 246 106 140 53.7  
July 462 / 225 255 116 139 51.3  
August 557 / 224 330 124 206 59.8  
September 494 / 201 266 106 160 59.3  
October 354 / 188 259 _86 173 46.9  
November 410 / 212 223 _61 162 48.3 one month old baby staying
December 404 / 293 249  54 195 27.5 two months old baby staying
Total
5,258 / 2,471 3,260  996 2,264 53.0 "Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2013)
Consumption from the grid
(Drawing power out except EcoWill Generation)
Ave of "08-"10 / "13
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 403

318

  78 240 19.6 three months old baby staying / EcoWill no running for one week
February 477 / 300 281   52 229 37.1 four months old baby staying
March 388 / 205 306   67 239 47.2 five months old baby staying
April 414 / 177 314   81 233 57.2 six months old baby staying
May 432 / 149 354 109 245 65.5  
June 365 / 178 233 104 129 51.2  
July 462 / 216 268 116 152 53.2  
August 557 / 226 303 122 181 59.4  
September 494 / 203 253   90 163 58.9  
October 354 / 203 193   70 123 42.7  
November 410 / 200 260 _ 65 195 51.2  
December 404 / 266 269   62 207 34.2  
Total
5,258 / 2,726 3,352  1,016 2,336 48.2 "Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2014)
Consumption from the grid
(Drawing power out except EcoWill Generation)
Ave of "08-"10 / "14
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 351

323

  60 263 29.9  
February 477 / 345 242  42 200 27.7  
March 388 / 252 316  72 244 35.1  
April 414 / 151 342  85 257 63.5  
May 432 / 153 351 111 240 64.6  
June 365 / 158 239 98 141 56.7  
July 462 / 187 279 112 167 59.5  
August 557 / 248 258 122 136 55.5 EcoWill no running for three weeks more
September 494 / 213 272   99 173 56.9 EcoWill no running for round four weeks 
October 354 / 251 246   82 164 29.1 EcoWill no running for round four weeks  
November 410 / 214 210   62 148 47.8  
December 404 / 262 272   50 222 35.1  
Total
5,258 / 2,785 3,350  995 2,355 47.0 "Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2015)
Consumption from the grid
(Drawing power out except EcoWill Generation)
Ave of "08-"10 / "15
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 228

292

  55 237 54.5  
February 477 / 214 266  44 222 55.1  
March 388 / 197 313  75 238 49.2  
April 414 / 176 256  75 181 57.5  
May 432 / 147 349 117 232 66.0  
June 365 / 140 259 99 160 61.6  
July 462 / 184 252 93 159 60.2  
August 557 / 213 236 103 132 78.0  
September 494 / 159 204   67 137 67.8  
October 354 / 149 265   70 195 57.9  
November 410 / 175 185  44 141 57.3  
December 404 / 206 255  51 204 49.0  
Total
5,258 / 2,188 3,131  893 2,238 58.4 "Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2016)
Consumption from the grid
(Drawing power out except EcoWill Generation)
Ave of "08-"10 / "16
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 254

286

 63 223 49.3  
February 477 / 214 270 52 218 55.1 29 days / leap year
March 388 / 205 299 62 237 47.2  
April 414 / 143 291 77 214 65.5  
May 432 / 138 305 99 206 68.1  
June 365 / 146 236 88 148 60.0  
July 462 / 186 236 93 143 59.7  
August 557 / 200 263 93 170 64.1  
September 494 / 183 188  73 115 63.0  
October 354 / 187 218  62 156 47.2  
November 410 / 209 205 53 152 49.0  
December 404 / 222 279  58 221 45.0  
Total
5,258 /2,287 3,076  873 2,203 56.5 "Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2017)
Consumption from the grid
(Drawing power out except EcoWill & EneFarm Generation)
Ave of "08-"10 / "17
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 282

299

57 242 49.3  
February 477 / 191 317 58 259 60.0  
March 388 / 189 302 66 236 51.3  
April 414 / 158 323 84 239 61.8  
May 432 / 159 294 100 194 63.2 May 24 -    EcoWill stopped for replacing to EneFarm 
June 365 /  90 280 55 225 75.3 June 5 - EneFarm started to generate
July 462 / 131 271 85 186 71.6 EneFarm, power generatation system running very well 
August 557 / 124 204 67 137 77.7 EneFarm, power generatation system running very well 
September 494 /  85 255 42 213 82.8 EneFarm, power generatation system running very well
October 354 /  89 175 23 152 74.9 EneFarm, power generatation system running very well 
November 410 /  80 252 16 236 80.5 EneFarm, power generatation system running very well 
December 404 / 129 305 31 274 68.1 EneFarm, power generatation system running very well 
Total
5,258 /1,707 3,277  684 2,593 67.5 "Self-Use"&"Feeding into Grid" depend on User's life style

Month
(2018)
Consumption from the grid
(Drawing power out except  EneFarm Generation)
Ave of "08-"10 / "18
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 139

291 

27 264 72.3 EneFarm, power generatation system running very well  
February 477 / 116 278 28 250 75.7 EneFarm, power generatation system running very well  
March 388 /  96 311 32 279 75.3 EneFarm, power generatation system running very well  
April 414 /  56 302 20 282 86.5 EneFarm, power generatation system running very well  
May 432 /  70 304 36 268 83.8 EneFarm, power generatation system running very well  
June 365 /  80 265 31 234 78.1 EneFarm, power generatation system running very well  
July 462 / 167 295 88 207 70.2 very hot days continued for month
August 557 / 186 303 113 190 66.6 very hot days continued for month
September 494 / 102 175 43  132 79.4 namy rainy days and typhoon hit
October 354 /  79 234 24 210 89.7 EneFarm, power generatation system running very well  
November 410 /  70 229 14 215 93.9 EneFarm, power generatation system running very well  
December 404 / 144 237 29 208 64.4 EneFarm, power generatation system running very well 
Total
5,258 /1,305 3,224  485 2,739 75.2 "Self-Use"&"Feeding into Grid" depend on User's life style
Month
(2019)
Consumption from the grid
(Drawing power out except  EneFarm Generation)
Ave of "08-"10 / "19
Solar Power Generation
Solar Power
Self-Consumption
Solar Power
Feeding into the grid
Electric saving Rate / "08-"10
Note
January 501 / 151

317

  31 286 69.9 EneFarm, power generatation system running very well  
February 477 / 121

241

  31 210 74.6 EneFarm, power generatation system running very well 
March 388 / 96

298

  31 267 75.3 EneFarm, power generatation system running very well 
April 414 / 72

325 

  25 300 82.6 EneFarm, power generatation system running very well 
May 432 / 65

325 

  34 291 85.0 EneFarm, power generatation system running very well 
June 365 / 89

226 

  27 199 756 EneFarm, power generatation system running very well 
July 462 / 114

192 

  50 142 75.3 many rainy days
August 557 / 199

282

  112 170 64.3 Hot days continued
& Rainy days continued
September 494 /  ***

*** 

** *** **.*  
October 354 /  ***

*** 

** *** **.*   
November 410 / ***

*** 

** *** **.*   
December 404 /  ***

*** 

** *** **.*  
Total
5,258 / *.*** *,***  *** *,*** **.* "Self-Use"&"Feeding into Grid" depend on User's life style