Here's Why National Grid (LON:NG.) Has A Meaningful Debt Burden

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.' So it might be obvious that you need to consider debt, when you think about how risky any given stock is, because too much debt can sink a company. As with many other companies National Grid plc (LON:NG.) makes use of debt. But the more important question is: how much risk is that debt creating?

What Risk Does Debt Bring?

Debt assists a business until the business has trouble paying it off, either with new capital or with free cash flow. In the worst case scenario, a company can go bankrupt if it cannot pay its creditors. 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. Of course, debt can be an important tool in businesses, particularly capital heavy businesses. When we think about a company's use of debt, we first look at cash and debt together.

Check out our latest analysis for National Grid

How Much Debt Does National Grid Carry?

You can click the graphic below for the historical numbers, but it shows that as of September 2022 National Grid had UK£48.6b of debt, an increase on UK£44.0b, over one year. However, because it has a cash reserve of UK£2.95b, its net debt is less, at about UK£45.6b.

How Strong Is National Grid's Balance Sheet?

Zooming in on the latest balance sheet data, we can see that National Grid had liabilities of UK£20.2b due within 12 months and liabilities of UK£54.4b due beyond that. On the other hand, it had cash of UK£2.95b and UK£3.81b worth of receivables due within a year. So its liabilities outweigh the sum of its cash and (near-term) receivables by UK£67.9b.

This deficit casts a shadow over the UK£38.5b company, like a colossus towering over mere mortals. So we'd watch its balance sheet closely, without a doubt. After all, National Grid would likely require a major re-capitalisation if it had to pay its creditors today.

We use two main ratios to inform us about debt levels relative to earnings. The first is net debt divided by earnings before interest, tax, depreciation, and amortization (EBITDA), while the second is how many times its earnings before interest and tax (EBIT) covers its interest expense (or its interest cover, for short). This way, we consider both the absolute quantum of the debt, as well as the interest rates paid on it.

With a net debt to EBITDA ratio of 7.4, it's fair to say National Grid does have a significant amount of debt. But the good news is that it boasts fairly comforting interest cover of 3.5 times, suggesting it can responsibly service its obligations. The good news is that National Grid grew its EBIT a smooth 69% over the last twelve months. Like a mother's loving embrace of a newborn that sort of growth builds resilience, putting the company in a stronger position to manage its debt. When analysing debt levels, the balance sheet is the obvious place to start. But ultimately the future profitability of the business will decide if National Grid can strengthen its balance sheet over time. So if you're focused on the future you can check out this free report showing analyst profit forecasts.

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. Considering the last three years, National Grid actually recorded a cash outflow, overall. Debt is usually more expensive, and almost always more risky in the hands of a company with negative free cash flow. Shareholders ought to hope for an improvement.

Our View

On the face of it, National Grid's net debt to EBITDA left us tentative about the stock, and its level of total liabilities was no more enticing than the one empty restaurant on the busiest night of the year. But at least it's pretty decent at growing its EBIT; that's encouraging. It's also worth noting that National Grid is in the Integrated Utilities industry, which is often considered to be quite defensive. We're quite clear that we consider National Grid to be really rather risky, as a result of its balance sheet health. So we're almost as wary of this stock as a hungry kitten is about falling into its owner's fish pond: once bitten, twice shy, as they say. 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. These risks can be hard to spot. Every company has them, and we've spotted 2 warning signs for National Grid (of which 1 is potentially serious!) you should know about.

At the end of the day, it's often better to focus on companies that are free from net debt. You can access our special list of such companies (all with a track record of profit growth). It's free.

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.