The Korea Land and Housing Corporation (LH) has initiated a billing offset system for surplus solar power generated in apartment complexes, marking the first implementation of its kind. This new system is expected to reduce monthly management fees by an average of approximately 8,000 won per household, in addition to existing savings from solar power consumption.
On November 3, LH announced that it will implement the billing offset system utilizing surplus solar power at Sanwool Village Complex 4 in the M1 block of the 6-3 living zone in Sejong City.
Sanwool Village Complex 4 consists of 238 public rental housing units and is the first zero-energy building (ZEB) rated at level 3 by LH.
The complex is equipped with a total solar power generation capacity of 246 kW, with an average capacity of 1,035 W per household, which is about 70% more than that of a ZEB rated at level 5. The average monthly solar power generation accounts for approximately 49.1% of the total monthly electricity consumption of the complex.
The billing offset system allows residents to consume the electricity generated by the solar power system and supply any surplus to the Korea Electric Power Corporation (KEPCO). The amount of electricity supplied is then deducted from the electricity received from KEPCO.
Previously, savings from solar power were achieved solely through direct consumption within the complex. This new system allows for additional reductions in residents' management fees by utilizing surplus power.
LH anticipates that the implementation of this system will result in an average additional savings of about 8,000 won per household at Sanwool Village Complex 4, translating to approximately 96,000 won annually.
In collaboration with KEPCO, LH is reviewing potential sites among ZEBs rated at level 5 and above for the billing offset system and will assess the application of related facilities. The plan is to expand the program based on operational conditions and actual savings results from each complex.
This initiative is significant as it broadens the utilization of solar power systems in apartment complexes and connects generated power to tangible reductions in residents' management fees. However, actual savings may vary depending on solar power generation and electricity consumption levels in each complex.
Park Hyun-geun, head of LH's Public Housing Headquarters, stated, "We will efficiently utilize the electricity generated from solar power to reduce residents' management fees and enable them to experience energy savings in their daily lives. We will continue to promote related projects to contribute to the government's goal of achieving carbon neutrality by 2050 and transitioning to a decarbonized society."
* This article has been translated by AI.
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