monitoring solar highways
TRANSCRIPT
Monitoring
SOLAR HIGHWAYSPerformance of a bifacial solar noise barrier.
Minne de Jong
Simona Villa
QUESTIONS
2
Uden
How much energy do we get from it?
Why is that interesting?
What can we use that energy for?
How can we get more energy?
What if every noise barrier was solar?
Don’t they get dirty?
What about grafiti?
…?
World’s Largest Bifacial Solar Noise Barrier
HOW DO WE MONITOR?
3
Light measurements
3 pyranometers
East side
West side
GHI
Electrical measurements
AC net output (kWh)
In 2 main sections
In 6 test areas
Production area 1Production area 2
6 test areas Bridge overpass
SO, HOW MUCH?
4
January to September:
184.6 MWh
Yearly output estimate:
206 ± 15 MWh
Performance ratio:
71%
Specific yield:
815 kWh/kWp
129 kWh/m2
Ou
tpu
t
[kW
h/m
2]
Ou
tpu
t [M
Wh
]
Ho
us
eh
old
s
#km
ele
ctr
ic
tra
nsp
ort
CO
2 a
vo
ide
d
[to
n]
#km
ro
ad
lig
hti
ng
400 m Solar Highways 129 206 59 1030000 339 14
1500 km All noise barriers 129 772500 220714 3863 MkM 1271 Mton 52337
A DAY IN THE LIFE OF SOLAR HIGHWAYS
5
Peaks in morning and
afternoon
Dip during solar noon
Lower peak in the morning
Flat part during solar noon
PowerLight
A DAY IN THE LIFE OF SOLAR HIGHWAYS
6
Bifaciality
Construction-shading
6
CAN WE IMPROVE?
7
Albedo:
Patch: 0.50
Soil/grass: 0.2
Slope: 27°
Can we harvest more indirect light?
Test area 6
We installed a high albedo
patch along area 6
12 m x 6 m
BEFORE INSTALLATION…
8
0
1000
2000
3000
4000
5000
6000
7000
6:00 8:24 10:48 13:12 15:36 18:00 20:24
Pow
er (
W)
Time of the day
Test area 1
Test area 2
Test area 3
Test area 4
Test area 5
Test area 6
All test areas show similar power profiles
15/05/2019
…AFTER INSTALLATION
9
0
1000
2000
3000
4000
5000
6000
5:30 7:54 10:18 12:42 15:06 17:30 19:54 22:18
Pow
er (
W)
Time of the day
Test area 1Test area 2Test area 3Test area 4Test area 5Test area 6
23/07/2019
Test area 6 shows enhanced power generation especially during morning hours
DAILY YIELD INCREASE
10
Installation tiles
On sunny days:
+7.5% in the morning
+3% during the whole day
On cloudy days:
+2% in the morning
+1.5% during the whole day
ALBEDO SIMULATIONS
11
BIGEYE albedo simulations
ALBEDO
12
BIGEYE albedo simulation results
DON’T THEY GET REALLY DIRTY?
13
Dirty modules lead to lower energy output
Is it worthwhile to clean?
DON’T THEY GET REALLY DIRTY?
14
Area 3 – ‘Residents side’ cleaned
No effect
DON’T THEY GET REALLY DIRTY?
15
Area 4 – Both sides cleaned
No effect
WHAT ABOUT VANDALISM?
16
CONCLUSIONS
18
Solar Highways produces 200 MWh renewable electricity
yearly
High albedo surroundings increase output
Simulations show up to 10% increase
No signs of soiling losses so far
No need for cleaning
Some vandalism occurred
No impact on yield after fast action
World’s Largest Bifacial Solar Noise Barrier
