The document discusses using solar energy and energy storage to reduce the costs of charging electric vehicles and building energy consumption. It introduces TransfoElectric, a company that specializes in power electronics development, including battery manufacturing equipment and current control devices. It also discusses their solutions for electromobility, including wireless charging systems and battery management systems. The goal of wireless charging is to make electric vehicle usage more convenient by allowing automatic charging. Tables of solar energy data are also presented.

1. Elektroauto uzlādes
un ēku energopatēriņa pieslēguma izmaksu
samazināšana izmantojot enerģijas uzkrāšanu un
saules enerģiju
TransfoElectric, SIA
Aivars Rubenis
Rīga, 2019.gada 7.martā

2. Par TransfoElectric
Uzņēmuma specializācija
– Jaudas elektronikas izstrāde
• Akumulatoru ražošanas iekārtas
• Strāvas vadības iekārtas
– Risinājumi elektromobilitātei
• Bezvadu uzlādes sistēmas
• Bateriju vadības sistēmas

3. Elektroauto uzlāde
Bezvadu uzlādes sistēmas
Kā darbojas bezvadu uzlāde

4. Bezvadu uzlāde
Mērķis
Atvieglot elektroauto lietošanu,
nodrošinot uzlādes
automātisku veikšanu.

5. Bezvadu uzlāde
Mērķis
Atvieglot elektroauto lietošanu,
nodrošinot uzlādes
automātisku veikšanu.

6. Bezvadu uzlāde

7. Elektroauto uzlādes staciju darbības
uzlabošana izmantojot saules enerģiju
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0 22 9 26 1 0 0 0 0 0 0 31 0 53 60 53 39 48 50 12 19 0 18 56
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0 0 0 13 28 3 0 0 0 0 2 43 26 0 10 10 8 23 26 2 27 11 24 0
Color scale:
No charging 0
Up to 10kWh 10
Up to 20kWh 20
Up to 30kWh 30
Mor the 30 kWh 40
Mērķis
Samazināt uzlādes staciju elektropieslēguma izmaksas

8. Elektrouzlādes tīkla noslodze
• Uzlādes staciju noslodze Latvijas nacionālajā uzlādes tīklā

9. Uzlādes stacijas noslodze 2016-2018

10. Problēma
Dārgas pieslēguma izmaksas
Amps Sadales
izmaksas
OIK
Fiksētas,
EUR·A-1 gadā
Mainīgas,
EUR·kWh-1
Fiksētas,
EUR·A-1 gadā
Mainīgas,
EUR·kWh-1
Tarifs 14.20 0.04176 6.28 0.0268
Izmaksas 80 A 1136.00 x 502.4 x

11. Uzlādes staciju kWh reālās izmaksas

12. Piedāvātais risinājums
Uzstādīt enerģijas uzkrāšanas sistēmu un saules paneļus lokālās
enerģijas ģenerēšanai ar mērķi samazināt pieslēguma izmaksas
Uzlādes stacijas noslodze pa stundām
Uzstādot 9.6kW Mpp saules paneļus un
24kWh baterijas iespējams samazināt
pieslēguma strāvu no 80A līdz 32A

13. Sistēmas efekts uz izmaksām
Scenario
Grid
Amps
Fixed costs in a year Variable Costs
Distributio
n costs
EUR/ A
Environme
nt Tax
EUR/ A Total, EUR
Energy
from Grid,
kWh
Price, EUR
kWh
Distributio
n costs,
EUR/kWh
Environm
ent Tax,
EUR/kWh
Total,
EUR
Baseline 80 14.2 6.28 1638.4 15203.20 0.0119 0.04176 0.0268 1223.25
Scenario:
secure 50 14.2 6.28 1024.0 15170.49 0.0119 0.04176 0.0268 1220.62
Scenario:
local 50 14.2 6.28 1024.0 14085.72 0.0119 0.04176 0.0268 1133.34
Scenario:
secure 32 14.2 6.28 655.4 15153.28 0.0119 0.04176 0.0268 1219.23
Scenario
Grid
Amps
Income Total costs
Energy to
grid, kWh
Price,
EUR/kWh Total EUR Total EUR
EUR Per
kWh
Economy,
EUR
Baseline 80 0 0.0119 0 2861.65 0.19 0.00
Scenario:
secure 50 951.32 0.0119 11.32 2233.30 0.15 -628.35
Scenario:
local 50 0 0.0119 0 2157.34 0.14 -704.31
Scenario:
secure 32 936.29 0.0119 11.14 1863.45 0.12 -998.20

14. Saules paneļu un uzkrāšanas sistēmu
efekts uz ēku energopatēriņu
0
5000
10000
15000
20000
25000
30000
00 02 04 06 08 10 12 14 16 18 20 22
Energyprie,EUR/MWh
Time of the day, hour
Mon
Tue
Wed
Thu
Fri
Sat
Sun
0
50000
100000
150000
200000
250000
0 50 100 150 200 250 300 350
Energyconsumption,Wh
Day of the year
Tika analizēti dati par komercēku 2016. and 2017. gadu. 10kW 90% no laika
energopatēriņš bija zem 10kW

15. Saģenerētā saules enerģija 1kW Mpp
0
20
40
60
80
100
120
140
160
180
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Solarenergyproductionestimate,Wh
(b) Month
0
100
200
300
400
500
600
0 2 4 6 8 10 12 14 16 18 20 22
Solarenergyproductionestimate,Wh
Time of the day, hour
January
February
March
April
May
June
July
August
September
October
November
December

16. Efekts no enerģijas uzkrāšanas sistēmas un
saules paneļu uzstādīšanas
-10000
-5000
0
5000
10000
15000
20000
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
EnergyflowskWh
Hour
b - June 17
PV2Use PV2Batt PV2Grid Grid2Use PV2Use Batt2Use
-10000
-5000
0
5000
10000
15000
20000
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
EnergyflowskWh
Hour
a - January 4
PV2Use PV2Batt PV2Grid Grid2Use PV2Use Batt2Use
Uzstādot 36kW saules paneļus un 24kWh uzkrāšanas sistēmu
izdevās samazināt nepieciešamo pieslēgumu no 40A uz 20A

17. Paldies par uzmanību
Aivars Rubenis, Member of Board
E: aivars.rubenis@transfoelectric.com
M: +371 29462363
TransfoElectric
Akmeņu 47, Ogre, LV-5001
www.transfoelectric.com
info@transfoelectric.com