期刊
SUSTAINABLE ENERGY GRIDS & NETWORKS
卷 27, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.segan.2021.100519
关键词
Energy metering; Net metering; Prosumer; Self-consumption; Smart meter
资金
- Danish research project ACDC (EUDP grant) [64019-0541]
- European research project Insulae (H2020 grant) [824433]
- H2020 Societal Challenges Programme [824433] Funding Source: H2020 Societal Challenges Programme
This paper discusses the implications of applying different net metering methods on a prosumer's energy exchanges with the grid, and the subsequent effect on costs and self-consumption. Results indicate that switching from instantaneous per phase netting to hourly summation netting leads to increased self-consumption and decreased annual energy imports.
Net metering is a well-known mechanism, where only energy exchanges of prosumers with the grid are accounted for in settlements. What is less known is the subtleness of the metering practices of energy suppliers behind the reported energy values. This paper discusses the implications of applying different net metering methods on a prosumer's energy exchanges with the grid, and subsequently the effect on costs and self-consumption. The methods differ on whether netting is based on each individual phase (or on the overall energy flow) and the netting interval used for settlement. Besides describing and illustrating those differences, real data from a Danish household is used to quantify their impact. Results show that self-consumption increases from 38% to 53%, when moving from instantaneous per phase netting to hourly summation netting. The corresponding annual energy imports decrease from 1459 kWh to 1087 kWh. The economic implications of applying different netting methods are quantified and discussed, and we show that annual savings of at least (sic)50 can be achieved by simply switching to a summation smart meter. (C) 2021 The Author(s). Published by Elsevier Ltd.
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