| Srl | Item |
| 1 |
ID:
177314
|
|
|
|
|
| Summary/Abstract |
Electrical energy storage (EES) has the potential to facilitate the transition to renewable energy supply in the future as it brings flexibility into the electricity network. Uncertainties exist around regulation, commercial models, technology and cost but EES is recognized among experts as being part of the solution. This study offers an economic analysis of the role of EES in the low-voltage (LV) network as shared asset between rooftop photovoltaic (PV) system owners, distribution network and energy trading companies. A conceptual analysis of relevant drivers, such as increasing distributed energy resources (DER; primarily rooftop PV), decreasing EES cost, and expected benefits are assessed in a case study using annual sample data from a distribution network in eastern New South Wales, Australia. The study finds that shared EES located in the LV network, if joint revenue from PV customers, distribution network and energy trading companies is captured, can become NPV positive in 2023 and bring additional benefits to a range of stakeholders. A 500 kWh battery located next to a transformer and mitigating up to 30% overload is found to be optimal. However, multiple regulatory challenges need to be overcome to enable shared usage of EES in vertically disintegrated energy sectors.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 2 |
ID:
116729
|
|
|
|
|
| Publication |
2012.
|
| Summary/Abstract |
Whole system models for the GB electricity system suggest that distributed electricity storage has the potential to significantly reduce the system integration cost for future system scenarios. From a policy perspective, this poses the question why this value should not be realised within existing market structures. Opinion among stakeholders is divided. Some believe that storage deployment constitutes a 'special case' in need of policy support. Others insist that markets can provide the necessary platform to negotiate contracts, which reward storage operators for the range of services they could provide. This paper seeks to inform this debate with a process of stakeholder engagement using a perspective informed by socio-technical transition literatures.
This approach allows the identification of tensions among actors in the electricity system and of possibilities for co-evolution in the deployment of storage technologies during a transition towards a low carbon electricity system. It also draws attention to policy-related challenges of technology lock-in and path dependency resulting from poor alignment of incumbent regimes with the requirements for distributed electricity storage.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|