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An Intrinsic Calculation For TransAlta Renewables Inc. (TSE:RNW) Suggests It's 41% Undervalued

Simply Wall St

Today we will run through one way of estimating the intrinsic value of TransAlta Renewables Inc. (TSE:RNW) by taking the expected future cash flows and discounting them to their present value. I will use the Discounted Cash Flow (DCF) model. Don't get put off by the jargon, the math behind it is actually quite straightforward.

Companies can be valued in a lot of ways, so we would point out that a DCF is not perfect for every situation. Anyone interested in learning a bit more about intrinsic value should have a read of the Simply Wall St analysis model.

Check out our latest analysis for TransAlta Renewables

Crunching the numbers

We're using the 2-stage growth model, which simply means we take in account two stages of company's growth. In the initial period the company may have a higher growth rate and the second stage is usually assumed to have a stable growth rate. In the first stage we need to estimate the cash flows to the business over the next ten years. Where possible we use analyst estimates, but when these aren't available we extrapolate the previous free cash flow (FCF) from the last estimate or reported value. We assume companies with shrinking free cash flow will slow their rate of shrinkage, and that companies with growing free cash flow will see their growth rate slow, over this period. We do this to reflect that growth tends to slow more in the early years than it does in later years.

Generally we assume that a dollar today is more valuable than a dollar in the future, and so the sum of these future cash flows is then discounted to today's value:

10-year free cash flow (FCF) estimate

2020

2021

2022

2023

2024

2025

2026

2027

2028

2029

Levered FCF (CA$, Millions)

CA$309.0m

CA$311.0m

CA$313.4m

CA$316.9m

CA$321.2m

CA$326.1m

CA$331.6m

CA$337.4m

CA$343.5m

CA$349.8m

Growth Rate Estimate Source

Analyst x1

Analyst x1

Est @ 0.76%

Est @ 1.12%

Est @ 1.37%

Est @ 1.54%

Est @ 1.66%

Est @ 1.75%

Est @ 1.81%

Est @ 1.85%

Present Value (CA$, Millions) Discounted @ 6.7%

CA$290

CA$273

CA$258

CA$244

CA$232

CA$221

CA$210

CA$201

CA$191

CA$183

("Est" = FCF growth rate estimated by Simply Wall St)
Present Value of 10-year Cash Flow (PVCF) = CA$2.3b

The second stage is also known as Terminal Value, this is the business's cash flow after the first stage. The Gordon Growth formula is used to calculate Terminal Value at a future annual growth rate equal to the 10-year government bond rate of 1.9%. We discount the terminal cash flows to today's value at a cost of equity of 6.7%.

Terminal Value (TV)= FCF2019 × (1 + g) ÷ (r – g) = CA$350m× (1 + 1.9%) ÷ 6.7%– 1.9%) = CA$7.5b

Present Value of Terminal Value (PVTV)= TV / (1 + r)10= CA$7.5b÷ ( 1 + 6.7%)10= CA$3.9b

The total value is the sum of cash flows for the next ten years plus the discounted terminal value, which results in the Total Equity Value, which in this case is CA$6.2b. To get the intrinsic value per share, we divide this by the total number of shares outstanding. Relative to the current share price of CA$13.9, the company appears quite undervalued at a 41% discount to where the stock price trades currently. Remember though, that this is just an approximate valuation, and like any complex formula - garbage in, garbage out.

TSX:RNW Intrinsic value, October 22nd 2019
TSX:RNW Intrinsic value, October 22nd 2019

The assumptions

The calculation above is very dependent on two assumptions. The first is the discount rate and the other is the cash flows. You don't have to agree with these inputs, I recommend redoing the calculations yourself and playing with them. The DCF also does not consider the possible cyclicality of an industry, or a company's future capital requirements, so it does not give a full picture of a company's potential performance. Given that we are looking at TransAlta Renewables as potential shareholders, the cost of equity is used as the discount rate, rather than the cost of capital (or weighted average cost of capital, WACC) which accounts for debt. In this calculation we've used 6.7%, which is based on a levered beta of 0.800. Beta is a measure of a stock's volatility, compared to the market as a whole. We get our beta from the industry average beta of globally comparable companies, with an imposed limit between 0.8 and 2.0, which is a reasonable range for a stable business.

Next Steps:

Although the valuation of a company is important, it shouldn’t be the only metric you look at when researching a company. The DCF model is not a perfect stock valuation tool. Rather it should be seen as a guide to "what assumptions need to be true for this stock to be under/overvalued?" If a company grows at a different rate, or if its cost of equity or risk free rate changes sharply, the output can look very different. What is the reason for the share price to differ from the intrinsic value? For TransAlta Renewables, There are three relevant aspects you should further examine:

  1. Financial Health: Does RNW have a healthy balance sheet? Take a look at our free balance sheet analysis with six simple checks on key factors like leverage and risk.

  2. Future Earnings: How does RNW's growth rate compare to its peers and the wider market? Dig deeper into the analyst consensus number for the upcoming years by interacting with our free analyst growth expectation chart.

  3. Other High Quality Alternatives: Are there other high quality stocks you could be holding instead of RNW? Explore our interactive list of high quality stocks to get an idea of what else is out there you may be missing!

PS. Simply Wall St updates its DCF calculation for every CA stock every day, so if you want to find the intrinsic value of any other stock just search here.

We aim to bring you long-term focused research analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material.

If you spot an error that warrants correction, please contact the editor at editorial-team@simplywallst.com. This article by Simply Wall St is general in nature. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. Simply Wall St has no position in the stocks mentioned. Thank you for reading.