Introduction
Literature overview and research questions
Study | Estimated maximum potential | Potential type | Proj. years/base | Notes | Sector | |
---|---|---|---|---|---|---|
Peak power (GW) | Flexible energy (TWh) | |||||
VDE 2012 | 4.5 | Technical | 2010–2030 | Energy intensive industries | Industry | |
Dena 2010 | 3.5 | 12.2 | Economic | 2020 | Energy intensive industries and cross-sectional technologies | Industry |
Klobasa 2007 | 10.3 | 6.3 | Theoretical | 2004 | Cross-sectional technologies | Service |
VDE 2012 | 1.4–1.8 | 5–9.7 | Technical | 2010–2030 | Based on standard load profiles and 500,000 inhabitant model city | Service |
Dena 2010 | 1.6 | 5.7 | Economic | 2020 | Roll-out with financial incentives | Service |
-
Which technologies and subsectors of the service and trade sector seem most promising for demand response?
-
Which conditions and barriers affect the realization of the potential?
-
What can be done to tap them?
Regulatory framework and market conditions for DR in Germany
Overview of regulatory and market instruments
Marketing of flexible loads on balancing and spot markets
The Sheddable Loads Act
Restrictions for the marketing of DR through the Electricity Access Charge Ordinance
Status quo of demand response in the service sector
Methodological approach
Scope | Stakeholder | Organization of interviewee |
---|---|---|
Superordinate | Aggregator | EnerNOC |
Energy services | Next Kraftwerke (virtual power plant operator) Beegy (energy service provider) EnBW (energy provider south Germany) Tübingen SW (local communal energy provider) EnQS (consulting, public services on energy management) Transnet BW (TSO south-west Germany) | |
Technology suppliers | Sicotronic (load management solutions for hotels/ restaurants) | |
Regulator | BNetzA (Bundesnetzagentur, German regulator for electricity grids/ networks) | |
Subsectors | Retail trade | HDE (German association of retail trade enterprises) EHI (research institute for retail trade) |
Hotels/restaurants | Adelphi (project management; managing energy section for the German hotel and gastronomy association DEHOGA) | |
Office-like enterprises | PWC (consulting enterprise with own energy management section) Vollack (project management and planning office for builders) |
Results
Identifying flexible technologies and promising subsectors in the service sector based on survey data
Identifying potentially flexible technologies within the subsectors
Type of appliance | Flexible appliance | Containing category from energy balances for appliances (cp. Table 4) |
---|---|---|
Cooling | Cold storage | Process cold |
Retail cooling | Process cold | |
Hotel/restaurant cooling | Process cold | |
Air conditioning (AC)/ventilation | Ventilation | Mechanical power |
Air conditioner | Air conditioning | |
Warm water | Electric water heating | Hot water |
Room heating | Storage heater | Space heating |
Heat pump/recirculation pump | Space heating |
Identifying promising subsectors
2013 Electricity consumption (TWh/a) | Lighting | Mech. power | Hot water | Other process heat | Process cold | AC | ICT | Space heating | Total | Sum of relevant shares |
---|---|---|---|---|---|---|---|---|---|---|
Construction industry | 1.8 | 0.7 |
0.5
| 0.1 |
0.0
|
0.1
| 0.3 |
0.3
| 3.8 | 0.9 |
Office-like enterprises | 13.3 | 1.3 |
0.9
| 0.4 |
0.7
|
0.9
| 10.9 |
1.1
| 29.5 | 3.6 |
Small manufacturing enterprises | 1.5 | 1.6 |
0.2
| 0.0 |
0.0
|
0.0
| 0.4 |
0.2
| 3.9 | 0.4 |
Retail trade | 11.0 | 2.1 |
0.7
| 0.6 |
4.2
|
0.5
| 1.9 |
1.4
| 22.5 | 6.8 |
Hospitals | 1.2 | 1.7 |
0.3
| 1.7 |
0.1
|
0.3
| 0.6 |
0.1
| 6.1 | 0.8 |
Schools | 2.9 | 0.1 |
0.1
| 0.1 |
0.0
|
0.0
| 0.4 |
0.1
| 3.9 | 0.3 |
Baths | 0.2 | 1.1 |
0.0
| 0.0 |
0.0
|
0.0
| 0.0 |
0.0
| 1.4 | 0.0 |
Hotels, restaurants, homes | 5.3 | 4.8 |
1.3
| 2.1 |
2.5
|
0.2
| 1.0 |
1.4
| 18.5 | 5.4 |
Foodstuff (bakers, butchers, other) | 0.2 | 0.1 |
0.0
| 0.4 |
0.1
|
0.0
| 0.0 |
0.0
| 0.9 | 0.3 |
Laundries | 0.1 | 0.0 |
0.0
| 0.2 |
0.0
|
0.0
| 0.0 |
0.0
| 0.3 | 0.0 |
Agriculture | 1.1 | 1.8 |
0.5
| 0.0 |
0.1
|
0.4
| 0.2 |
0.2
| 4.3 | 1.3 |
Horticulture | 0.2 | 0.0 |
0.1
| 0.0 |
0.0
|
0.0
| 0.0 |
0.0
| 0.4 | 0.1 |
Airports | 0.5 | 0.4 |
0.1
| 0.1 |
0.0
|
0.1
| 0.1 |
0.1
| 1.3 | 0.3 |
Textile, clothing, leather | 0.6 | 0.1 |
0.0
| 0.0 |
0.0
|
0.0
| 0.2 |
0.2
| 1.1 | 0.2 |
Remaining groups* | 1.1 | 7.9 |
0.1
| 0.4 |
2.9
|
0.0
| 4.1 |
0.2
| 16.8 | 3.3 |
Other | 5.8 | 8.6 |
0.2
| 0.2 |
0.1
|
0.1
| 1.0 |
0.0
| 15.9 | 0.4 |
Total | 46.7 | 32.5 |
5.0
| 6.2 |
11.0
|
2.7
| 21.1 |
5.4
| 130.6 | 24.1 |
Evaluating framework conditions, barriers and options to tap the DR potential in the service sector
Office-like enterprises
Retail trade
Hotels, restaurants, and homes
Offices | Retail trade | Hotels/restaurants | |
---|---|---|---|
Most appropriate appliances | AC, ventilation | Ventilation, AC, cooling/ cold storage | AC, ventilation, refrigerators, kitchen devices |
Drivers | “Low-hanging fruits”—untapped potentials, appliances of interest not part of core business | Cooling and AC for DR already evaluated Competition between corporate chains (competitive advantage) | High loads (esp. in kitchen) Load management common for kitchen devices in large companies Possible gains in comfort due to controlling software |
Barriers | Habits/ routines of staff Fear of loss in quality No handing over of control | Feeling of discrimination against industry Customer might impede DR Competition between corporate chains (pooling) | DR may not impose routines/comfort of customers |
Starting points | Individual contracts with providers Flagship projects Modern buildings already dispose of control software for facility management | Regular phases of refurbishment Chains/ associations facilitate roll-out | Load controlling systems in kitchens |