Fact · utilities · 2025
Dongjiang water supply volume
東江水輸港水量
Figure and reference date
816 million m³ (FY2024-25)
8.16 億立方米（2024-25年度）
Notes and definition
No English note has been written for this figure yet. The value and its source are registered, but the compilers have not yet set out what the figure covers in English. Do not treat the absence of a note as “no caveat”: read the official document linked above, or the Chinese page (which may carry a note).
Other figures in this group (utilities)
Figures in the same group are not necessarily additive — check the basis note above first. Utilities & energy infrastructure.
| Item / 項目 | Figure / 數字 | As of / 時點 | Source / 來源 |
|---|---|---|---|
| Dongjiang water share of freshwater supply 東江水佔全港淡水供應比例 | About 77% (2024) 約 77%（2024年） WSD commonly cites a range of about 70–80%. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Fuel mix for electricity generation 香港整體發電燃料組合 | Natural gas 55%, nuclear + renewables 28%, coal 17% (2025) 天然氣 55%、核能及可再生能源 28%、煤 17%（2025年） On a sent-out basis. | 2025 | Environment and Ecology Bureau: energy supply |
| Total impounding reservoir capacity 全港水塘總容量 | 17 reservoirs, 586,000,000 m³ 17 個水塘、共 5.86 億立方米 Largest: High Island (281m m³) and Plover Cove (230m m³) reservoirs. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Dongjiang inflow (recent years) 東江水輸港量（近年） | 2022 ≈810m, 2023 ≈820m, 2024 ≈818m m³ 2022≈8.10億m³、2023≈8.20億m³、2024≈8.18億m³ About 77% of total fresh-water consumption in 2024. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Town gas pipeline network length 煤氣管道網絡長度 | over 3,700 km (2025) 逾 3,700 公里（2025） Towngas corporate brochure (company first-hand). | 2025 | Hong Kong and China Gas: corporate overview (pipeline network) |
| Submarine cable landing systems 海底光纜登陸系統 | 10 landing stations, 11 systems (to 2024-12) 10 個登陸站、連接 11 個系統（截至2024-12） Plus 25 land cables to the mainland; total capacity over 284,130 Gbps. | 2024-12 | OFCA: key telecommunications statistics |
| CLP peak electricity demand 中電本地最高電力需求 | 7,336 MW (2024) 7 336 兆瓦（2024年） CLP annual peak demand; sales about 36.1 TWh. | 2024 | CLP Information Kit |
| Average daily fresh-water consumption 食水每日平均用量 | 2.91 million m³ (FY2024-25) 291 萬立方米（2024-25年度） WSD Hong Kong The Facts: water. Annual usage 1,063 million m³. | 2024-25 | Water Supplies Department: Hong Kong water supplies facts |
| Town gas customer accounts 煤氣用戶數目 | 2,056,216 (2025) 2 056 216 戶（2025） Towngas 2025 corporate booklet: residential plus commercial/industrial; residential ≈54% of gas sold. | 2025 | Hong Kong and China Gas: corporate overview (pipeline network) |
| Annual water consumption 全年食水用量 | 1,063 million m³ 1,063 百萬立方米 WSD annual report water consumption. | 2024/25 年度 | Water Supplies Dept: Annual Report (water consumption & Dongjiang supply) |
| Mobile service subscribers and penetration 流動服務用戶數目及滲透率 | about 34.4 million (441.4% penetration) 約 3,437 萬戶（滲透率 441.4%） OFCA key communications statistics. | 2026年3月 | OFCA: Key Communications Statistics |
| Residential fibre-to-the-home penetration 住宅光纖滲透率 | 89.6% 89.6% OFCA residential FTTH/B penetration. | 2026年2月 | OFCA: Key Communications Statistics |
21 more figures in this group are listed in Utilities & energy infrastructure.
Other figures from the same official source
These figures come from the same registered document: “Water Supplies Department: Hong Kong water supplies facts” (Water Supplies Department). Being in one document does not make them additive.
| Item / 項目 | Figure / 數字 | As of / 時點 | Source / 來源 |
|---|---|---|---|
| Dongjiang water share of freshwater supply 東江水佔全港淡水供應比例 | About 77% (2024) 約 77%（2024年） WSD commonly cites a range of about 70–80%. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Total impounding reservoir capacity 全港水塘總容量 | 17 reservoirs, 586,000,000 m³ 17 個水塘、共 5.86 億立方米 Largest: High Island (281m m³) and Plover Cove (230m m³) reservoirs. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Dongjiang inflow (recent years) 東江水輸港量（近年） | 2022 ≈810m, 2023 ≈820m, 2024 ≈818m m³ 2022≈8.10億m³、2023≈8.20億m³、2024≈8.18億m³ About 77% of total fresh-water consumption in 2024. | 2024 | Water Supplies Department: Hong Kong water supplies facts |
| Average daily fresh-water consumption 食水每日平均用量 | 2.91 million m³ (FY2024-25) 291 萬立方米（2024-25年度） WSD Hong Kong The Facts: water. Annual usage 1,063 million m³. | 2024-25 | Water Supplies Department: Hong Kong water supplies facts |
| Total reservoir capacity 水塘總容量 | 586 million m³ 5.86 億立方米 Total reservoir capacity of 586 million m³; largest is High Island Reservoir. | 2025 | Water Supplies Department: Hong Kong water supplies facts |
How to cite this figure
Hong Kong Story, “Dongjiang water supply volume”, https://hongkongstory.org/en/facts/util-dongjiang-2024, data as at 2025 (retrieved ＿).
中文：香港紀事館，〈東江水輸港水量〉，https://hongkongstory.org/facts/util-dongjiang-2024，資料時點 2025（查閱日期 ＿）。
Machine-readable: /api/v1/facts.json (id = util-dongjiang-2024) · OpenAPI 3.1 ·/llms.txt
Registered source
Water Supplies Department: Hong Kong water supplies facts
Water Supplies Department
The official document carries no registered publication date, so only the retrieval date 2026-10-10 is given — no publication year is invented.
This site is a secondary compilation: the official text prevails. If the figure above differs from the official document, the official document is correct.