scholarly journals The Benefits of Local Cross-Sector Consumer Ownership Models for the Transition to a Renewable Smart Energy System in Denmark. An Exploratory Study

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1508
Author(s):  
Leire Gorroño-Albizu

Smart energy systems (SESs), with integrated energy sectors, provide several advantages over single-sector approaches for the development of renewable energy systems. However, cross-sector integration is at an early stage even in areas challenged by the existing high shares of variable renewable energy (VRE). The promotion of cross-sector integration requires institutional incentives and new forms of actor participation and interaction that are suitable to address the organisational challenges of implementing and operating SESs. Taking as the point of departure an empirical case and its institutional context, this article presents an exploratory study of the ability of cross-sector consumer ownership at different locations in the power distribution system to address those challenges in Denmark. The methods comprise interviews of relevant stakeholders and a literature review. The results indicate that distant and local cross-sector integration will be necessary to reduce overinvestments in the grid and that consumer co-ownership of wind turbines and power-to-heat (P2H) units in district heating (DH) systems may provide advantages over common separate ownership with regard to local acceptance and attractiveness of investments. Several possibilities are identified to improve the current institutional incentive system in Denmark. Finally, the results suggest the relevance of analysing the possibility for single-sector energy companies to transition to smart energy companies.

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3082 ◽  
Author(s):  
Yongming Zhang ◽  
Zhe Yan ◽  
Li Li ◽  
Jiawei Yao

As the quantity of direct current (DC) load and wireless power transmission (WPT) devices are continuously increasing in building, in order to efficiently utilize renewable energy (which outputs DC power) such as photovoltaic (PV), especially for building integrated photovoltaic (BIPV), and regeneration energy from elevators (which also outputs DC power), a novel building power distribution system architecture is explored in consideration of the characteristics of supply and demand-side in this paper. The proposed architecture is a hybrid framework integrated with conventional alternating current (AC) power distribution system, DC power distribution and WPT system. The applied AC and DC hybrid power distribution system has higher conversion efficiency than a single AC power system, which indicates that the former is becoming an important trend of building power distribution. In addition, the results of experimental test in a case study suggest that the proposed architecture can provide fine service for efficient application of renewable energy and regeneration energy in building. The obtained results also can serve as a foundation to promote the development of building power distribution system and related practical application in building.


Author(s):  
Frede Hvelplund ◽  
Finn Arler ◽  
Henrik Lund

The subject of this chapter is the governance system of the distribution system operators (DSOs), i.e. the companies that own, operate and develop regional and local electricity networks. These companies are natural monopolies, and subsequently need strong regulation by public authorities and/or by consumers. The role of the DSOs has been changing fundamentally in recent years, together with the rest of the electricity system, due to the transition from stored fossil fuel-based electricity to electricity based on fluctuating renewable energy sources. The paper analyses the changing circumstances for the DSOs in the development of integrated smart energy systems, based on an innovative theoretical framework with a strong focus on ownership in the understanding of governance of natural monopolies. After a comparative analysis of shareholder versus consumer ownership, based on two cases, the paper sets up several conclusive recommendations about ownership, governance and the new role of the DSOs in the developing smart energy system.


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