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    Waitaki Hydro Upgrade Might Change The Case For Investing In Meridian Energy Stock (NZSE:MEL)

    Simply Wall St·10/10/2026 00:28:37
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    • Meridian Energy has committed between $440 million and $510 million over ten years to upgrade the 92 year old Waitaki hydro power station, replacing all seven turbines and generators, refurbishing 21 headgates, and lifting available capacity from 105MW to 120MW with completion targeted by 2036.
    • The project introduces a new repowering capital expenditure category, which accounts for 85% of the Waitaki spend. Meridian Energy is keeping its revised 2027 total capital expenditure guidance unchanged at $370 million to $410 million, signalling disciplined planning around long life hydro assets.
    • The focus now turns to how Meridian Energy’s investment story could be influenced by this long duration Waitaki repowering commitment.

    Scan for other hydro and grid beneficiaries moving on long-life asset upgrades by checking the hand picked 43 power grid technology and infrastructure stocks that align with Meridian Energy’s Waitaki repowering story.

    What Is Meridian Energy's Investment Narrative?

    To own Meridian Energy, you have to buy into a long term, capital heavy renewable utility that leans on big hydro and wind assets, regulated wires access and relatively steady power demand. The Waitaki upgrade fits that story. Management is choosing to commit up to NZ$510m over a decade while keeping 2027 capital expenditure guidance unchanged. This points to tight project phasing and a focus on keeping the wider portfolio running without blowing out near term spend.

    Your shorter term catalysts are still pretty practical: execution on unit by unit upgrades at Waitaki with limited outages, the balance between wholesale pricing and retail competition, and how earnings interact with a P/E of 112.7x and a dividend yield of about 4.07% that is not fully backed by earnings or free cash flow. The repowering tag on most of the Waitaki outlay underlines that Meridian Energy is committing serious cash to extend existing assets rather than chase rapid revenue growth, while analyst forecasts still point to earnings growth of 18.1% a year and relatively modest revenue growth of 2.2% per year.

    That said, there is a less comfortable angle to this capital story if ...

    There's only one way to know the right time to buy, sell or hold Meridian Energy. Head to Simply Wall St's company report for the latest analysis of Meridian Energy's Fair Value.

    NZSE:MEL 1-Year Stock Price Chart
    NZSE:MEL 1-Year Stock Price Chart

    Exploring Other Perspectives

    Two fair value estimates from the Simply Wall St Community span from NZ$6.23 to NZ$9.58 per share, which already shows how far opinions on Meridian Energy can spread. Those views were formed before the Waitaki repowering commitment that locks in up to NZ$510m, so you are weighing fresh capital plans against pre-upgrade assumptions. Expect disagreement and use these differing takes to pressure test your own thesis.

    Explore another Meridian Energy fair value estimate, including one that suggests it could be worth just NZ$6.23.

    Decide For Yourself

    Disagree with this assessment? Extraordinary investment returns rarely come from following the herd, so go with your instincts.

    Looking For More Investment Ideas Beyond Meridian Energy?

    If Meridian Energy's long term hydro commitment has you thinking about portfolio balance, it can help to line it up against other businesses with different income profiles and risk levels. The Simply Wall St Screener lets you filter by quality, balance sheet strength, income focus and more, so you can build a watchlist that matches how you like to invest.

    • If you want potential value opportunities backed by solid fundamentals, scan through 175 high quality undervalued stocks that meet your quality and pricing filters.
    • For investors who care most about income resilience, you can focus on steady cash return profiles by reviewing a curated 223 dividend fortresses that may suit your payout expectations.
    • To keep risk containment front and center, concentrate on resilient businesses and check the 222 resilient stocks with low risk scores that align with a more defensive approach.

    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.