National Grid: Raising Economic Moat Rating to Narrow and Fair Value Estimate

Why It Matters

The upgraded EPS outlook and higher ROE target improve earnings sustainability, making National Grid’s shares appear undervalued despite rising gilt yields. This strengthens the company’s competitive position in Europe’s most favorable regulated environment.

Key Takeaways

• EPS guidance raised to 8‑10% from 6‑8%.
• ROE target 9% exceeds regulator's 7.7% allowance.
• Fair value estimate increased 19% to GBX 1,440.
• Economic moat rating upgraded to Narrow.
• Dividend yield projected at 3.4% with 16x P/E.

Pulse Analysis

National Grid’s latest regulatory outcome under the RIIO‑T3 framework marks a pivotal moment for the UK’s electricity transmission sector. The regulator’s final determination for the 2026‑31 period confirms a 10% annual asset‑growth trajectory and introduces a more generous efficiency‑sharing mechanism, allowing the company to target a 9% return on equity. Compared with the nominal 7.7% ceiling, this uplift reflects the regulator’s confidence in Grid’s cost‑control record and provides a clearer pathway for capital investment while shielding earnings from inflationary pressure.

The upgraded EPS guidance—now 8% to 10% versus the prior 6% to 8%—feeds directly into Morningstar’s revised long‑term earnings model, lifting the 2025‑30 compound annual growth rate to 9.4%. Coupled with an 8% increase in fiscal EPS estimates, the higher return assumption justifies an economic moat rating of Narrow, signalling sustainable profit generation. For investors, the implied 3.4% dividend yield and a 2027 price‑to‑earnings multiple of 16 suggest that the stock is trading at a discount relative to its intrinsic value, especially as gilt yields climb.

From a market perspective, National Grid’s valuation advantage is amplified by the UK’s inflation‑linked regulatory regime, the most favorable in Europe. The enterprise‑value to regulated‑asset‑value ratio of 1.5 underscores a modest premium for the company’s stable cash flows. While geopolitical tensions, such as the Iran conflict, have pushed gilt yields higher and introduced short‑term volatility, the firm’s long‑term earnings visibility and disciplined capital allocation mitigate these risks. Consequently, the stock presents a compelling case for income‑focused portfolios seeking exposure to a defensively positioned utility with upside potential.