Operations

207.1
TWh
NET ELECTRICITY GENERATION
53.6
%
NET EFFICIENT INSTALLED RENEWABLES CAPACITY
2.2
million km
ELECTRICITY DISTRIBUTION AND TRANSMISSION GRID
44.2
million
END USERS WITH ACTIVE SMART METERS
69.5
million
RETAIL CUSTOMERS
105,237
no.
CHARGING POINTS

The following presents the operating, environmental and financial performance of the Group.

SDG   2020 2019 Change
  Net electricity generation (TWh) 207.1 229.1 (22.0)
  of which: - -  
- renewable (TWh) 105.4 99.4 6.0
    - -  
  Total net efficient installed capacity (GW) 84.0 84.3 (0.3)
Net efficient installed renewables capacity (GW) (1) 45.0 42.1 2.9
Net efficient installed renewables capacity (%) 53.6% 50.0% 7.2%
Additional efficient installed renewables capacity (GW) (2) 2.91 3.58 (0.67)
    - -  
Electricity transported on the Enel distribution grid (TWh)(3) 484.6 507.7 (23.1)

End users with active smart meters (no.)(4) (5) 44,292,794 43,821,596 471,198
Electricity distribution and transmission grid (km)(6) 2,231,961 2,219,008 12,953
  End users (no.)(6) 74,303,931 73,811,964 491,967
    - -  
  Electricity sold by Enel (TWh)(7) 298.2 322.0 (23.8)
  Gas sold to end users (billions of m3)(7) 9.7 10.8 (1.1)
  Retail customers (no.)(8) 69,517,932 70,471,612 (953,680)
  - of which free market(8) 23,164,875 23,013,224 151,651
Demand response capacity (MW) 6,038 6,297 (259)
Charging points (no.)(9) 105,237 79,565 25,672
Storage (MW) 123 110 13

(1) Net efficient installed renewables capacity, including managed capacity, amounted to 48.6 GW at December 31, 2020 and 45.8 GW at December 31, 2019.
(2) 
Additional efficient installed renewables capacity including managed capacity was equal to 3.1 GW at December 31, 2020 and 3 GW at December 31, 2019.
(3) The figures for 2019 reflect a more accurate measurement of amounts transported.
(4) To ensure a uniform comparison, the figure for 2019 has been adjusted on the basis of the new calculation method, which excludes digital meters with an active contract that are not managed remotely.
(5) Of which 18.2 million second generation smart meters in 2020 and 13.1 million in 2019.
(6) The figures for 2019 reflect more accurate calculation of the numbers.
(7) Volumes include sales to large customers by the power generation companies in Latin America. The 2019 figure has been adjusted to ensure comparability;
(8) Also includes the large customers of generation companies in Latin America. The figure for 2019 has consequently been adjusted to ensure comparability.
(9) The number of charging points including interoperable points was equal to about 186 thousand at December 31, 2020 and about 82 thousand at December 31, 2019.

Electricity generation

Net electricity generated by Enel in 2020 decreased by 22 TWh (-9.6%) from 2019. This reduction reflects, in particular, a decrease in thermal power generation (-27.5 TWh) due mainly to a reduction in coal-fired generation (-24.4 TWh), which was partially offset by an increase in renewable output (+6.0 TWh). The increase can be attributed to greater wind output (+4.3 TWh) and solar generation (1.8 TWh), mainly in Spain and North America as a result of new plants coming online.
Nuclear generation, totaling 25.8 TWh, decreased by 0.4 TWh compared with 2019.

NET ELECTRICITY GENERATION BY SOURCE (%)

At the end of December 2020, the Group’s total net efficient installed capacity totaled 84.0 GW, a decrease of 0.3 GW compared with 2019. The disposal of 3 GW of coal and fuel-oil plants in Italy and Spain was only partially offset by new renewables capacity, mainly in the form of wind and solar power in North America (1.4 GW), Brazil (0.9 GW), and Spain (0.4 GW).

NET EFFICIENT INSTALLED CAPACITY BY SOURCE (%)