HOW WILL CAPACITY AND TOU TARIFFS AFFECT PROSUMERS? … · 2017. 2. 2. · Volumetric tariff (from...

HOW WILL CAPACITY AND TOU TARIFFS AFFECT PROSUMERS? SOME EXAMPLES

NordREG seminar 2016

Kristine Fiksen, partner atTHEMA

2THEMA Consulting Group

PROSUMERS

Maksimum feed-in to the grid: 100 kW

One meter

Exempt from tariff on energy fed into the grid

Supplier to provide market access. But the grid companymay buy energy from prosumers until the central hub is in place (Elhub)


KEY QUESTION: HOW WILL THE TARIFF CHANGE FOR PROSUMERS IF WE SHIFT FROM VOLUMETRIC TO CAPACITY OR TOU TARIFFS?

Method for calculations of prosumer`s tariffs:

The basis is 7 prosumers’ usage profiles with hourly resolution

Calculated tariff for the prosumers with

– the current volumetric tariff.

– the current capacity tariff for big customers

– TOU tariff example from NVE

Assumptions:

The current volumetric tariff component for large customers equals the marginal loss

Symmetric marginal loss: consumers pay and prosumers are payed the same level

We have not included energy sale from the prosumers (to the network company or utility)


-500

0

500

1,000

1,500

2,000

2,500

3,000

Net

tofo

rbru

k [k

Wh

/mån

ed]

-5

-4

-3

-2

-1

0

1

2

3

4

1 7

13

19

25

31

37

43

49

55

61

67

73

79

85

91

97

10

3

10

9

11

5

12

1

12

7

13

3

13

9

14

5

15

1

15

7

16

3

Net

tofo

rbru

k [k

Wh

/tim

e]

Time i gjennomsnittlig sommeruke (mai-oktober)

-1,000-500

0500

1,0001,5002,0002,5003,000

Net

tofo

rbru

k [k

Wh

/mån

ed]

-5

-4

-3

-2

-1

0

1

2

3

4

1 7

13

19

25

31

37

43

49

55

61

67

73

79

85

91

97

10

3

10

9

11

5

12

1

12

7

13

3

13

9

14

5

15

1

15

7

16

3

Net

tofo

rbru

k [k

Wh

/tim

e]

Time i gjennomsnittlig sommeruke (mai-oktober)

Low energy buildings with solar panels

Normal buildings with solar panels

Energy bought from and sold to the grid per monthEnergy bought from and sold to the grid per week of the summer

SOME OF THE PROSUMERS ARE NET ENERGY SUPPLIERS, BUT CONTINUES TOUSE ENERGY FROM THE GRID IN SUMMER


THE NETWORK TARIFF IS BASED ON THE VOLUME OF ENERGY OR THE MAXIMUM POWER PER MONTH

0

500

1,000

1,500

2,000

2,500

3,000

Bru

tto

utt

ak [

kWh

/mån

ed]

0

2

4

6

8

10

12

Mak

sutt

ak [

kW/m

åned

]

The volumetric tariff component is based on the volume of energy bought from the grid

The capacity tariff component is based on the maximum power bought from the grid

0

500

1,000

1,500

2,000

2,500

3,000

Bru

tto

utt

ak [

kWh

/mån

ed]

0

2

4

6

8

10

12

Mak

sutt

ak [

kW/m

åned

]

Low energy building with solar panels



NO NETWORK TARIFF ON ENERGY DELIVERIES – THE PROSUMERS ARE PAID CORRESPONDING TO THE MARGINAL LOSS COST OF CONSUMERS

-1,200

-1,000

-800

-600

-400

-200

0

Bru

tto

inn

mat

nin

g [k

Wh

/mån

ed]

Low energy buildings with solar panels


-1,200

-1,000

-800

-600

-400

-200

0

Bru

tto

inn

mat

nin

g [k

Wh

/mån

ed]

• One of the buildings delivers little energy to the grid, and produces almost exclusively for its own usage

• One of the buildings delivers energy in the period from march to October

• One of the buildings delivers energy mainly in the period from April to July

• All of the buildings delivers energy to the grid in the period February to November


LOW ENERGY HOUSES USE 1/3 OF THE ENERGY OF A REGULAR HOUSE AND PRODUCE 80-90% OF ITS OWN ENERGY CONSUMPTION

Low energy buildings with solar panelsNormal buildings with solar panels


CAPACITY TARIFFS


Nettselskap Tarifftype Eks. avg. Inkl. avg. Enhet

EB_husholdning Fastledd 800 1000 NOK/år

EB_husholdning Energiledd, vinter 20.81 47.3 øre/kWh

EB_husholdning Energiledd, sommer 19.01 45.0 øre/kWh

EB_husholdning Effektledd, vinter 0 kr/kW/mnd

EB_husholdning Effektledd, sommer 0 kr/kW/mnd

EB_næring Fastledd 800 1000 NOK/år

EB_næring Energiledd, vinter +/- 5.5 28.1 øre/kWh

EB_næring Energiledd, sommer +/- 3.9 26.1 øre/kWh

EB_næring Effektledd, vinter 79 98.75 kr/kW/mnd

EB_næring Effektledd, sommer 12 15 kr/kW/mnd

BKK_husholdning Fastledd 1320 1650 NOK/år

BKK_husholdning Energiledd, vinter 10.6 34.5 øre/kWh

BKK_husholdning Energiledd, sommer 10.6 34.5 øre/kWh

BKK_husholdning Effektledd, vinter 0 kr/kW/mnd

BKK_husholdning Effektledd, sommer 0 kr/kW/mnd

BKK_næring Fastledd 1320 1650 NOK/år

BKK_næring Energiledd, vinter +/- 4.9 27.4 øre/kWh

BKK_næring Energiledd, sommer +/- 4.3 26.6 øre/kWh

BKK_næring Effektledd, vinter 57 71.25 kr/kW/mnd

BKK_næring Effektledd, sommer 49 61.25 kr/kW/mnd

We have combined capacity tariffs for large consumers and fixed tariff from small consumers.

Volumetric tariffs for large consumers eqals themarginal loss of the grid

Prosumers are paid for marginal loss of their energy delivered as comsumers pay marginal loll

Levies are included, payment for energy delivered is not

WE ARE USING TWO CURRENT TARIFFS – WITH AND WITHOUT LARGE DIFFERENTIATION BETWEEN SUMMER AND WINTER


Volumetric tariffs

EB p

er 2

01

6B

KK

pe

r 2

01

6

High differentiation between summer and winter:

Low energy buildings: yearly tariff increase 115 per cent

Normal buildings: yearly tariff increase 22 per cent

Small differentiation between summer and winter:

Low energy buildings: yearly tariff increase 115 per cent

Normal buildings: yearly tariff increase 57 cent

Capacity tariffs

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000

LAV1 LAV2 LAV3 LAV4 NOR1 NOR2 NOR3

Tari

ffko

stn

ader

[N

OK

/år]

Merverdiavgift

Enovaavgift

Elavgift

Effektledd

Energiledd

Fastledd

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000


Tari

ffko

stn

ader

[N

OK

/år]

Merverdiavgift

Enovaavgift

Elavgift

Effektledd

Energiledd

Fastledd

+ 103 %+ 136 %

+ 104 %+ 120 %

+ 14 %+ 41 %

+ 17 %

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000


Tari

ffko

stn

ader

[N

OK

/år]

Merverdiavgift

Enovaavgift

Elavgift

Effektledd

Energiledd

Fastledd

+ 93 %

+ 139 %+ 116 % + 111 %

+ 49 %

+ 75 %

+ 50 %

0

2,000

4,000

6,000

8,000

10,000

12,000

14,000


Tari

ffko

stn

ader

[N

OK

/år]

Merverdiavgift

Enovaavgift

Elavgift

Effektledd

Energiledd

Fastledd

THE GRID TARIFF INCREASES SUBSTANTIALLY WHEN CHANGING FROM VOLUMETRIC TO CAPACITY TARIFFS


THE DISTRIBUTION OF PAYMENT PER MONTH CHANGES TOO LOW ENERGY BUILDINGS

Volumetric tariff (from EB NEtt) Capacity tariff (from EB Nett)Capacity tariff (from BKK Nett)

-200

0

200

400

600

800

1,000

Tari

ffko

stn

ader

[N

OK

/mån

ed]

-200

0

200

400

600

800

1,000

Tari

ffko

stn

ader

[N

OK

/mån

ed]

Merverdiavgift

Enovaavgift

Elavgift

Effektledd

Energiledd

Fastledd

-200

0

200

400

600

800

1,000

Tari

ffko

stn

ader

[N

OK

/mån

ed]

Fixed fee: 800 kr/ year Volumetric tariff:

– Summer: 0,19 kr/kWh– Winter: 0,21 kr/kWh

Fixed fee: 800 kr/ year Capacity tariff:

– Summer: 12 kr/kW– Winter: 79 kr/kW

Fixed fee: 1320 kr/ year Volumetric tariff:

– Summer: 49 kr/kW– Winter: 57 kr/kW


TIME-OF-USE TARIFFS


DAILY ENERGY PROFILES

Prosumers – low energy

Prosumers – normal building

Distribution over an average summer day Distribution over an average winter day

Normal -consumption

0.0

1.0

2.0

3.0

4.0

1 3 5 7 9 11 13 15 17 19 21 23Net

tou

ttak

[kW

]

Gjennomsnittstime i sommerdøgn

-1.0

1.0

3.0

5.0

1 3 5 7 9 11 13 15 17 19 21 23Net

tou

ttak

[kW

]


-4.0

-2.0

0.0

2.0

1 3 5 7 9 11 13 15 17 19 21 23

Net

tou

ttak

[kW

]


0.0

1.0

2.0

3.0

4.0

1 3 5 7 9 11 13 15 17 19 21 23Net

tou

ttak

[kW

]

Gjennomsnittstime i vinterdøgn

-1.0

1.0

3.0

5.0

1 3 5 7 9 11 13 15 17 19 21 23Net

tou

ttak

[kW

]


-4.0

-2.0

0.0

2.0

1 3 5 7 9 11 13 15 17 19 21 23

Net

tou

ttak

[kW

]



Fixed fee: 1500 kr/ year

Energy fee: 0,19 kr/kWh

Payment for energy to the grid (negative loss):

– 0,05 kr/kWh

Levies are included

Fixed fee: 1500 kr/ year

Low (green) energy fee:

– 0,05 kr/kWh

High (red) energy fee:

– 0,40 kr/kWh

Payment for energy to the grid (negative loss):

– 0,05 kr/kWh

Levies are included

VOLUMETRIC TARIFF TOU-TARIFF

TIME-OF-USE TARIFF USED IN THE CALCULATIONS

Vinter Sommer0-1

1-2

2-3

3-4

4-5

5-6

6-7

7-8

8-9

9-10

10-11

11-12

12-13

13-14

14-15

15-16

16-17

17-18

18-19

19-20

20-21

21-22

22-23

23-24


Volumetric tariffs Tariff med TOUTime-of-use tariff

919 932 1,029 826

3,579 2,641

3,690

0

2,000

4,000

6,000

8,000

10,000

12,000


Tari

ffko

stn

ader

[N

OK

/år]

Kundeprofil

Merverdiavgift

Enovaavgift

Elavgift

Effektledd

Energiledd

Fastledd

• Reduced tariffs for all prosumers

• No systematic difference between normal and low energy buildings

599 643 707 627

2,290 1,802 1,987

34 20 41

-10

677

448 731

-8.2 % -7.6 %-7.6 %

-6.2 %

-7.3 %

-5.9 %

-11.3 %

-2,000

0

2,000

4,000

6,000

8,000

10,000

12,000


Tari

ffko

stn

ader

[N

OK

/år]

Kundeprofil

Merverdiavgift

Enovaavgift

Elavgift

Energiledd, lavpris

Energiledd, høypris

Fastledd

ANNUAL GRID TARIFFS REDUCED 6 TO 11%


SUMMARY


SUMMARY OF OUR EXAMPLES

Prosumers grid tariffs:

– Are increased by a change to capacity tariffs

– ..but capacity tariffs reduce the variation between months since the maximum loadsvary less by season than energy use

TOU- tariffs

– Reduces tariffs, but not very much

– Not much energy produced from solar in «red» hours during winter in Norway

Date post:	22-Aug-2020
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HOW WILL CAPACITY AND TOU TARIFFS AFFECT PROSUMERS? … · 2017. 2. 2. · Volumetric tariff (from...

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