These 4 Measures Indicate That National Grid (LON:NG.) Is Using Debt Extensively

The external fund manager backed by Berkshire Hathaway's Charlie Munger, Li Lu, makes no bones about it when he says 'The biggest investment risk is not the volatility of prices, but whether you will suffer a permanent loss of capital.' It's only natural to consider a company's balance sheet when you examine how risky it is, since debt is often involved when a business collapses. We note that National Grid plc (LON:NG.) does have debt on its balance sheet. But the more important question is: how much risk is that debt creating?

When Is Debt Dangerous?

Debt is a tool to help businesses grow, but if a business is incapable of paying off its lenders, then it exists at their mercy. Ultimately, if the company can't fulfill its legal obligations to repay debt, shareholders could walk away with nothing. However, a more common (but still painful) scenario is that it has to raise new equity capital at a low price, thus permanently diluting shareholders. Having said that, the most common situation is where a company manages its debt reasonably well - and to its own advantage. The first thing to do when considering how much debt a business uses is to look at its cash and debt together.

View our latest analysis for National Grid

What Is National Grid's Net Debt?

The chart below, which you can click on for greater detail, shows that National Grid had UK£46.4b in debt in September 2024; about the same as the year before. However, because it has a cash reserve of UK£7.27b, its net debt is less, at about UK£39.2b.

How Strong Is National Grid's Balance Sheet?

The latest balance sheet data shows that National Grid had liabilities of UK£8.99b due within a year, and liabilities of UK£57.0b falling due after that. On the other hand, it had cash of UK£7.27b and UK£2.68b worth of receivables due within a year. So its liabilities total UK£56.0b more than the combination of its cash and short-term receivables.

When you consider that this deficiency exceeds the company's huge UK£48.1b market capitalization, you might well be inclined to review the balance sheet intently. Hypothetically, extremely heavy dilution would be required if the company were forced to pay down its liabilities by raising capital at the current share price.

In order to size up a company's debt relative to its earnings, we calculate its net debt divided by its earnings before interest, tax, depreciation, and amortization (EBITDA) and its earnings before interest and tax (EBIT) divided by its interest expense (its interest cover). Thus we consider debt relative to earnings both with and without depreciation and amortization expenses.

National Grid has a rather high debt to EBITDA ratio of 5.9 which suggests a meaningful debt load. But the good news is that it boasts fairly comforting interest cover of 3.5 times, suggesting it can responsibly service its obligations. On a slightly more positive note, National Grid grew its EBIT at 17% over the last year, further increasing its ability to manage debt. The balance sheet is clearly the area to focus on when you are analysing debt. But ultimately the future profitability of the business will decide if National Grid can strengthen its balance sheet over time. So if you want to see what the professionals think, you might find this free report on analyst profit forecasts to be interesting.

Finally, while the tax-man may adore accounting profits, lenders only accept cold hard cash. So it's worth checking how much of that EBIT is backed by free cash flow. Over the last three years, National Grid recorded negative free cash flow, in total. Debt is far more risky for companies with unreliable free cash flow, so shareholders should be hoping that the past expenditure will produce free cash flow in the future.

Our View

On the face of it, National Grid's conversion of EBIT to free cash flow left us tentative about the stock, and its net debt to EBITDA was no more enticing than the one empty restaurant on the busiest night of the year. But on the bright side, its EBIT growth rate is a good sign, and makes us more optimistic. We should also note that Integrated Utilities industry companies like National Grid commonly do use debt without problems. Overall, it seems to us that National Grid's balance sheet is really quite a risk to the business. For this reason we're pretty cautious about the stock, and we think shareholders should keep a close eye on its liquidity. There's no doubt that we learn most about debt from the balance sheet. However, not all investment risk resides within the balance sheet - far from it. We've identified 5 warning signs with National Grid (at least 2 which are concerning) , and understanding them should be part of your investment process.

When all is said and done, sometimes its easier to focus on companies that don't even need debt. Readers can access a list of growth stocks with zero net debt 100% free, right now.

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.