Electricity Regulation Act, 2006 (Act No. 4 of 2006)

Rules

Grid Capacity Allocation Rules

1. Background
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1.1 Grid access refers to the process of connecting electricity generators, as well as consumers, to the transmission and distribution power systems. A crucial element of this access process is that renewable energy generated not only enters the grid, but is also allowed to be dispatched and sold according to the relevant grid connection rules and codes.

 

1.2 As demand for electricity generation rises and the shift from fossil fuels to renewable sources continues, it is essential to have well-defined policies and rules that protect grid access matters. These rules ensure fairness and consistency in their implementation.

 

1.3 However, available grid connection capacity is becoming increasingly limited, particularly at the substation level and throughout the western part of the country. This scarcity highlights the need for regulatory measures to establish structured rules for grid capacity allocation.

 

1.4 Delays that happen after the allocation of grid access, resulting in the actual start of project construction being deferred to later dates, often occur due to financial constraints or lengthy environmental approval processes.

 

1.5 The inadequate development of grid infrastructure not only hinders the connection of new generation power sources, but also slows down the energy transition, resulting in higher costs for clean energy developments. Thus, it is important to evaluate key factors that can ensure efficiency, effectiveness, and fairness in grid connection processes.

 

1.6 Given the shortages in grid connection capacity and the rapidly changing landscape of electricity generation markets, it has become clear that Grid Capacity Allocation Rules must be crafted to ensure non-discriminatory and open access. This approach should be fair and transparent for all Applicants seeking grid connection capacity.

 

1.7 In the past, licensees allocated grid capacity on a first-come, first-served (fc-fs) basis. However, as the demand for electricity generation increased, it has become clear that the process of allocating grid capacity should be refined further to ensure efficient distribution and to minimise the risk of speculators monopolising the grid without a genuine commitment to fostering investment. Hence, the first-ready, first-served principle is being adopted as a way of allocating grid capacity. Section 4 further clarifies the provisions of the readiness and the first-ready, first-served principles.

 

1.8 The rules are designed to promote a balanced allocation of grid capacity among all Applicants, which is essential for maintaining long-term energy security. Consequently, non-discriminatory access will enhance customer options for affordable and reliable electricity supply.

 

1.9 In the South African market, regulating the allocation of grid access by transmission and distribution network owners is essential, especially as the energy sector moves towards a more competitive environment. In this context, the ER has deemed it necessary to outline key regulatory principles for the use and allocation of access to transmission and distribution grids. This aims to ensure that access is granted fairly and that the available capacity in the grid is utilised efficiently and effectively.

 

1.10 As electrical transmission and distribution lines are historically natural monopolies, it is vital to ensure fair access to these power systems to allow healthy competition in the electricity market, with the aim to result in competitive prices for end users.