National Grid PLC (NG) — Cash Flow Quality Index
National Grid PLC (NG) has a Cash Flow Quality Index of 4.57x as of September 2025. Operating cash flow of GBX2.82 Billion exceeds net income of GBX617.00 Million, indicating high earnings quality where cash backs reported profits. Explore National Grid PLC (NG) long-term investment share to see how much of total assets are deployed in long-term investments.
Cash Flow Quality Index
Operating Cash Flow
Net Income
Data as of
National Grid PLC Cash Flow Quality Index (1993–2025)
Historical Cash Flow Quality Index for National Grid PLC across 33 annual periods. Values consistently above 1.0x indicate high-quality earnings. Check tangible equity quality of National Grid PLC to evaluate the tangible quality of the company's equity base.
Annual Cash Flow Quality Index for National Grid PLC (1993–2025)
Year-by-year earnings quality comparison for National Grid PLC. For live market cap and the full company financial profile, see how much is National Grid PLC worth.
| Year | Quality Index | Operating CF (GBX) | Net Income | YoY Change |
|---|---|---|---|---|
| 2025 | 2.35x | GBX6.81 Billion | GBX2.90 Billion | ▲ +51.3% |
| 2024 | 1.55x | GBX6.94 Billion | GBX4.47 Billion | ▲ +9.7% |
| 2023 | 1.41x | GBX6.90 Billion | GBX4.88 Billion | ▼ -1.5% |
| 2022 | 1.43x | GBX6.27 Billion | GBX4.37 Billion | ▼ -6.9% |
| 2021 | 1.54x | GBX4.46 Billion | GBX2.90 Billion | ▼ -7.2% |
| 2020 | 1.66x | GBX4.62 Billion | GBX2.78 Billion | ▲ +10.4% |
| 2019 | 1.50x | GBX4.32 Billion | GBX2.87 Billion | ▲ +16.7% |
| 2018 | 1.29x | GBX4.50 Billion | GBX3.49 Billion | ▼ -20.9% |
| 2017 | 1.63x | GBX5.23 Billion | GBX3.21 Billion | ▲ +24.0% |
| 2016 | 1.31x | GBX5.37 Billion | GBX4.08 Billion | ▼ -0.8% |
| 2015 | 1.32x | GBX5.01 Billion | GBX3.78 Billion | ▲ +23.1% |
| 2014 | 1.08x | GBX4.02 Billion | GBX3.73 Billion | ▲ +7.7% |
| 2013 | 1.00x | GBX3.75 Billion | GBX3.75 Billion | ▼ -16.4% |
| 2012 | 1.19x | GBX4.23 Billion | GBX3.54 Billion | ▼ -7.9% |
| 2011 | 1.30x | GBX4.86 Billion | GBX3.75 Billion | ▼ -5.4% |
| 2010 | 1.37x | GBX4.52 Billion | GBX3.29 Billion | ▲ +47.7% |
| 2009 | 0.93x | GBX3.40 Billion | GBX3.66 Billion | ▲ +5.2% |
| 2008 | 0.88x | GBX5.32 Billion | GBX6.02 Billion | ▲ +10.8% |
| 2007 | 0.80x | GBX2.15 Billion | GBX2.69 Billion | ▼ -11.8% |
| 2006 | 0.90x | GBX2.27 Billion | GBX2.51 Billion | ▼ -4.9% |
| 2005 | 0.95x | GBX2.55 Billion | GBX2.69 Billion | ▲ +22.1% |
| 2004 | 0.78x | GBX1.42 Billion | GBX1.83 Billion | ▼ -31.3% |
| 2003 | 1.13x | GBX1.82 Billion | GBX1.61 Billion | ▲ +78.5% |
| 2002 | 0.63x | GBX554.40 Million | GBX874.70 Million | ▲ +461.9% |
| 2001 | 0.11x | GBX83.40 Million | GBX739.40 Million | ▼ -57.0% |
| 2000 | 0.26x | GBX149.90 Million | GBX572.10 Million | ▲ +0.9% |
| 1999 | 0.26x | GBX151.30 Million | GBX582.60 Million | ▲ +127.6% |
| 1998 | -0.94x | GBX-508.60 Million | GBX540.00 Million | ▼ -189.7% |
| 1997 | 1.05x | GBX694.70 Million | GBX661.90 Million | ▲ +175.1% |
| 1996 | -1.40x | GBX-952.30 Million | GBX681.70 Million | ▼ -287.1% |
| 1995 | 0.75x | GBX506.50 Million | GBX678.30 Million | ▲ +3.5% |
| 1994 | 0.72x | GBX455.10 Million | GBX630.50 Million | ▲ +4.8% |
| 1993 | 0.69x | GBX408.40 Million | GBX592.80 Million | — |