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NGG DCF Calculator

Run your own discounted cash flow valuation for National Grid plc. The calculator is pre-filled with real data — $-3.8B free cash flow (FY2026) and the live share price — so you only adjust the assumptions.

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COMPANY DATA

Annual, in billions
$B
In billions
B
Per share
$

YOUR ASSUMPTIONS

Projected
%
Required return
%
yrs
Perpetuity
%

YOUR DCF RESULT

CALCULATED FAIR VALUE

$-120.54

166.2% upsideUNDERVALUED

MARKET

$79.77

YOUR DCF

$-120.54

MARGIN

$200.31

VALUE BREAKDOWN

PV of Projected Cash Flows$-38.2B
PV of Terminal Value
$-52.2B58% of total
Total Enterprise Value$-90.4B
÷ Shares Outstanding0.75B
Fair Value Per Share$-120.54

SENSITIVITY CHECK

Try adjusting growth rate by ±2% and discount rate by ±1% to see how sensitive your fair value is to assumptions.

COMPARE WITH FPI FAIR VALUE

Your DCF reflects your assumptions. As an independent reference, here is Fair Price Index's daily blended fair value for National Grid plc — DCF (50%), relative valuation (30%), and analyst consensus (20%):

NGG · FPI MODELLIVE DATA · UPDATED DAILY
NGGNational Grid plc
$79.77fair $109.95-27.4% below fair value
See the full NGG valuation breakdown →

Frequently Asked Questions

What is NGG's free cash flow?

National Grid plc generated $-3.8 billion of free cash flow in fiscal year 2026. That figure is pre-filled in the calculator above and refreshed daily.

How do I calculate NGG's fair value with a DCF?

Project National Grid plc's free cash flow forward at your assumed growth rate, discount each year back at your required return (WACC), add a terminal value, and divide by shares outstanding. The calculator above does all of this instantly as you adjust the assumptions.

What growth rate should I use for NGG?

Anchor on history and sector reality: look at National Grid plc's revenue and cash flow growth over the past five to ten years, then ask what is sustainable going forward. Testing a conservative and an optimistic scenario matters more than any single number.

Is NGG undervalued right now?

That depends on the assumptions you feed the model — that is the point of running your own DCF. For an independent reference, Fair Price Index publishes a daily fair value for National Grid plc blending DCF, relative valuation, and analyst consensus.

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This calculator is for educational purposes only and does not constitute investment advice. Pre-filled figures come from the latest reported financials and may differ from other sources. Always verify against the company's filings.