NGGTF (National Grid) Earnings Power Value (EPV): $-23.26 (As of Mar26)


NGGTF National Grid PLC NGGTF
74 GF Score
Price $16.56
GF Value $9.98
Valuation Significantly Overvalued
! 5 Warning Signs
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What is National Grid Earnings Power Value (EPV)?

National Grid NGGTF +4.54% 74 Earnings Power Value (EPV) is $-23.26 as of Mar26. GuruFocus rates NGGTF with a GF Score™ of 74/100 and a GF Value™ of $9.98 (Significantly Overvalued). The stock has 5 warning signs investors should review.

As of Mar26, National Grid's earnings power value is $-23.26. *

* GuruFocus does not store EPV value into our database if Average Maintenance CAPEX is 0.

Margin of Safety is N/A.

The basic concept of EPV is that one should value a stock based on the current free cash flow of a company and not on future projections which may, or may not, come true. It is arguably a better way to analyze stocks than Discounted Cash Flow analysis that relies on highly speculative growth assumptions many years into the future. Assumption: Current profitability is sustainable.


National Grid  (OTCPK:NGGTF) Earnings Power Value (EPV) Explanation

Assumption: Current profitability is sustainable.

Earnings power value (EPV) uses a very basic equation which assumes no growth, although it does rely on an assumption about the cost of capital as well as the fact that current earnings are sustainable. It also involves several adjustments to clean up the underlying Earnings figures.


Be Aware

Though using today's earnings in calculating Earnings Power Value, GuruFocus is normalizing these earnings to the business cycle. This eliminates the effects on profitability of valuing the firm at different points in the business cycle. This means that we are considering the average earnings over 5 years.


National Grid Earnings Power Value (EPV) Related Terms


National Grid Earnings Power Value (EPV) Historical Data

* Premium members only.

The historical data trend for National Grid's Earnings Power Value (EPV) can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

National Grid Earnings Power Value (EPV) Chart

National Grid Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Earnings Power Value (EPV)
Get a 7-Day Free Trial Premium Member Only Premium Member Only -19.15 -18.82 -22.82 -20.46 -23.66

National Grid Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 Mar26
Earnings Power Value (EPV) Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -22.82 0.00 -20.46 0.00 -23.66

NGGTF vs NEE, SO, DUK: Earnings Power Value (EPV) Comparison

For the Utilities - Regulated Electric subindustry, National Grid's Earnings Power Value (EPV), along with its competitors' market caps and Earnings Power Value (EPV) data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


National Grid Earnings Power Value (EPV) vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, National Grid's Earnings Power Value (EPV) distribution charts can be found below:

* The bar in red indicates where National Grid's Earnings Power Value (EPV) falls into.


NGGTF
74GF Score
National Grid PLC NGGTF
Earnings Power Value (EPV) is just one metric. See GF Score™, valuation, warning signs, and more.
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National Grid Earnings Power Value (EPV) Calculation

Earnings Power Value also known as just Earnings Power is a valuation technique popularised by Bruce Greenwald, an authority on value investing at Columbia University. It is arguably a better way to analyze stocks than Discounted Cash Flow analysis that relies on highly speculative growth assumptions many years into the future.

The basic concept of EPV is that one should value a stock based on the current free cash flow of a company and not on future projections which may, or may not, come true. This valuation tool excludes the potential growth that a company may have so that needs to be looked at separately. Since future growth is excluded from the analysis, only the maintenance capital expenditures are subtracted from after-tax EBIT (earnings before interest and taxes) and growth capex is ignored.

National Grid's "Earning Power" Calculation:

Average of Last 5 Years Last Year
Revenue 24,628
DDA 2,727
Operating Margin % 26.32
SGA * 25% 0
Tax Rate % 26.63
Maintenance Capex 10,252
Cash and Cash Equivalents 3,771
Short-Term Debt 5,200
Long-Term Debt 57,140
Shares Outstanding (Diluted) 4,971

1. Start with "Earnings" not including accounting adjustments (one-time charges not excluded unless policy has changed). "Earnings" are "Operating Income.

2. Look at average margins over a business/Industry cycle: Average Operating Margin = 26.32%

To normalize margins and eliminate the effects on profitability of valuing the firm at different points in the business cycle, it is usually best to take a long-term average of operating margins. Ideally this would be as long as 10 years and include at least one economic downturn. However, since most of companies do not have as long as 10-year history, here GuruFocus uses the latest 5 years data to do the calculation. To smooth out unusual years but reflect recent developments, we take an average of the 5 year margin.

3. Multiply average margins by sustainable revenues and then adjust for maintenance SGA. This yields "normalized" EBIT:

To be conservative, GuruFocus uses an average of the 5 year revenues as the sustainable revenue.
EPV analysis recognises that part of SG&A expenditure is made to maintain and replace the existing assets, while part is made to grow sales. Since EPV is only interested in what it costs a going concern to maintain its existing asset base, it adds back a percentage of SG&A (between 15% and 50% - this is a matter of judgment and industry knowledge) to make up for the fact that some of this expenditure went to fund growth and shouldn't be accounted for. To start off, we assume 25% for the sake of prudence.
Sustainable Revenue = $24,628 Mil, Average Operating Margin = 26.32%, Average Adjusted SGA = 0,
therefore "Normalized" EBIT = Sustainable Revenue * Average Operating Margin + Average Adjusted SGA = 24,628 * 26.32% +0 = $6481.177796376 Mil.

4. Multiply by one minus Average Tax Rate (NOPAT):

Same as average operating margin calculation, GuruFocus takes an average of the 5 years tax rates.
Average Tax Rate = 26.63%, and "Normalized" EBIT = $6481.177796376 Mil,
therefore After-tax "Normalized" EBIT = "Normalized" EBIT * ( 1 - Average Tax Rate ) = 6481.177796376 * ( 1 - 26.63% ) = $4755.1105256451 Mil.

5. Add back Excess Depreciation (after tax at 1/2 average tax rate). This yields "normalized" Earnings:

Excess Depreciation = Average DDA * % of Excess Depreciation (after tax at 1/2 average tax rate) = 2,727 * 0.5 * 26.63% = $363.166788624 Mil.
"Normalized" Earnings = After-tax "Normalized" EBIT + Excess Depreciation = 4755.1105256451 + 363.166788624 = $5118.2773142691 Mil.

6. Adjusted for Maintenance Capital Expenditure:

First, calculate the revenue change regarding to the previous year. If the revenue decreased from the previous year, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
Second, if the revenue increased from the previous year, then calculate the percentage of Net PPE as of corresponding Revenue.
Third, calculate Capital Expenditure (positive) - percentage of Net PPE as of corresponding Revenue * revenue increase.
If [Capital Expenditure (positive) - percentage of Net PPE as of corresponding Revenue * revenue increase] was negative, then the Maintenance Capital Expenditure = Capital Expenditure (positive).
If [Capital Expenditure (positive) - percentage of Net PPE as of corresponding Revenue * revenue increase] was positive, then the Maintenance Capital Expenditure = Capital Expenditure (positive) - percentage of Net PPE as of corresponding Revenue * revenue increase.
Fourth, GuruFocus uses an average of the 5 year maintenance capital expenditures as maintenance CAPEX.
National Grid's Average Maintenance CAPEX = $10,252 Mil *.
* GuruFocus does not store EPV value into our database if Average Maintenance CAPEX is 0.

7. Investors require a return of "WACC" for the risk they are taking: WACC = 9%

8. National Grid's current cash and cash equivalent = $3,771 Mil.
National Grid's current interest bearing debt = Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation = 57,140 + 5,200 = $62340 Mil.
National Grid's current Shares Outstanding (Diluted Average) = 4,971 Mil.

National Grid's Earnings Power Value (EPV) for Mar26 is calculated as:

EPV = ( ( Norm. Earnings-Maint. CAPEX *) / WACC + CashandEquiv - Int. Bearing Debt ) / Shares Outstanding (Diluted Average)
= ( ( 5118.2773142691 - 10,252)/ 9%+3,771-62340 )/4,971
=-23.26

Margin of Safety (EPV)=( Earnings Power Value (EPV)-Current Price )/Earnings Power Value (EPV)
=( -23.257848087197-16.556 )/-23.257848087197
= N/A

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

* GuruFocus does not store EPV value into our database if Average Maintenance CAPEX is 0.

What does a Earnings Power Value (EPV) of $-23.26 mean?
National Grid (NGGTF) has a Earnings Power Value (EPV) of $-23.26 as of Mar26. Bruce Greenwald's earnings power value focuses on current earnings without factoring in future growth. View historical data on National Grid and its competitors.
Is National Grid's Earnings Power Value (EPV) too high?
National Grid's current Earnings Power Value (EPV) is $-23.26. Overall, National Grid has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Grid's Earnings Power Value (EPV) compare to NEE and SO?
National Grid's Earnings Power Value (EPV) of $-23.26 can be compared against companies in the Utilities - Regulated industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Earnings Power Value (EPV) for an Utilities - Regulated company?
A good Earnings Power Value (EPV) depends on the Utilities - Regulated industry context. However, Earnings Power Value (EPV) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Earnings Power Value (EPV) mean?
A high Earnings Power Value (EPV) can signal that a stock is expensive relative to its fundamentals. Bruce Greenwald's earnings power value focuses on current earnings without factoring in future growth. View historical data on National Grid and its competitors. National Grid's current Earnings Power Value (EPV) is $-23.26. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Grid stock overvalued right now?
Based on GuruFocus' analysis, National Grid (NGGTF) is currently considered Significantly Overvalued. The stock's GF Value™ is $9.98, compared to a current price of $16.56 — trading 65.9% above its estimated fair value. The current Earnings Power Value (EPV) is $-23.26. National Grid's overall GF Score™ is 74/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Power Value (EPV) calculated?
Earnings Power Value (EPV) is calculated from a company's financial statements. For National Grid (NGGTF), the current Earnings Power Value (EPV) is $-23.26 as of Mar26. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is National Grid (NGGTF) Overvalued in 2026?

Based on GuruFocus' analysis, National Grid stock appears to be overvalued. The current stock price of $16.56 is trading 65.9% above its estimated GF Value™ of $9.98. GuruFocus considers National Grid to be Significantly Overvalued.

Key valuation signals for NGGTF:

  • Earnings Power Value (EPV): $-23.26
  • GF Value™: $9.98 vs. price of $16.56 (65.9% above fair value)
  • GF Score™: 74/100 with 5 warning signs

No single metric tells the full story. See the NGGTF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


National Grid Business Description

Address 1-3 Strand, London, GBR, WC2N 5EH
National Grid owns and operates the electric transmission system in England and Wales. It sold the bulk of its UK gas transmission business in fiscal 2023 to fund the acquisition of PPL's UK power distribution assets. In the Northeastern United States, it serves electricity and gas customers combined in three states. It also owns regulated transmission electricity networks in the United States, metering services and merchant transmission lines in the UK.
74GF Score

Get the complete analysis for NGGTF

Earnings Power Value (EPV) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$16.56
Price
$9.98
GF Value