The New Solar Export Rebate Is Real. Here's Why It Won't Change Much

From 1 April 2026, New Zealand lines companies are required to pay rebates when households export power to the grid at peak times. It's a genuine policy win. But for most solar homeowners, the real-world impact is probably a lot smaller than the headlines suggest.

My own system is a useful test case. Last year my 8.2kW solar-plus-battery setup generated 9.3MWh. Total savings on my power bill: $3,457.50. Of that, $168 came from exported power - I sent 2.1MWh back to the grid, and Contact Energy paid me 8c/kWh for it.

That's not a great export rate. But even if I'd been on the best plan available, exports would still have been a minor contributor to the overall picture. That's just the maths of how solar, especially solar-plus-battery works in New Zealand.

Let me explain the new scheme properly, then we can look at what it's actually worth.

Two separate things, running on different timelines

The reform has two layers, and it's worth keeping them distinct because the media has been blurring them together.

Layer one: the lines company rebate. Since 1 April, electricity distribution businesses (your local lines company: Powerco, Vector, Orion, Wellington Electricity, etc.) are required by the Electricity Authority to pay "negative charges" a.k.a rebates  for electricity injected into their networks at peak times. The logic is sensible: if your solar or battery is exporting when demand is high, you're helping defer costly network upgrades. That has real value to the lines company, and now they have to share some of it.

Layer two: the retailer mandate, starting 1 July 2026. Lines companies pay these rebates to retailers, not directly to customers. What retailers do with them is (for now) largely their call. From 1 July, large retailers (those with 5% or more of the market) are required to offer time-varying plans that provide a genuine financial benefit for exporting at peak times. The Electricity Authority has been clear this isn't optional.

What the lines companies are actually paying

Rates vary by region and by season. Here's what the main distributors were offering as of April 2026. Note that these are the network-level rebates - what lands in your pocket depends on whether your retailer passes them on.

Sources: RNZ (March 2026), Newsroom (April 2026). Orion's figure reflects a published 80% adjustment factor applied to their theoretical network value. For a full table across all 29 distributors, check Octopus Energy's rebate tracker.

One thing worth flagging: the Electricity Authority gave lines companies significant latitude in calculating their rebates, and most have applied "adjustment factors", essentially discounts on the theoretical value. Newsroom reported that nearly three-quarters of distributors chose adjustment factors above 50%, meaning the rebate is less than half the estimated value to the network. Orion, for example, calculated their peak-time injection was worth 30c/kWh to the network, but after applying an 80% adjustment factor, they're paying out around 6c.

That's not necessarily scandalous... there are legitimate reasons for adjustment. but it does explain why these numbers look modest.

The retailer problem

Even once a lines company pays the rebate, it flows to your retailer... not you. And retailers have been responding in very different ways.

Electric Kiwi said it wouldn't pass on the lines company rebates as a separate line item, pointing instead to its existing 23c peak export rate on the MoveMaster plan. Meridian has offered a flat 17c across all hours. Mercury flagged it would factor the rebates into time-of-use plans it was developing. Some retailers have been quietly absorbing the rebate into their margin.

The July 2026 mandate should sharpen this up. But right now: don't assume you're automatically getting it. Worth a direct question to your retailer.

Now for the reality check

Back to my own numbers. I'm on Contact Energy, which pays 8c/kWh for solar exports. I'm the first to admit that's not a great rate,  it's one of the worst on the market. But let's run the best-case scenario anyway.

So at best, we're talking an extra $36–$74 a year. Against total savings of $3,457.50, that's well under 2% of my overall benefit  and that's being generous, and assumes Contact actually passes the rebate through.

Exports already accounted for less than 5% of my total savings. This scheme nudges that up a little, but the hierarchy doesn't change: the money is in the solar and battery reducing what I buy from the grid, not in what I sell back to it.

Who does this actually benefit?

The scheme makes more sense (kind of) if you have solar without a battery in that case, you're likely exporting a much larger share of what you generate, especially over summer. If you're putting 40–50% of your generation back into the grid (not unusual for a system sized for a small household), the peak-time rebate starts to matter more.

For solar-plus-battery owners, the battery is already doing the job of capturing peak-time value by storing cheap midday solar and using it in the evening. You're less likely to be exporting much during peak windows in the first place.

What Electricity Authority actually wants is for people with solar batteries to export their stored power to the grid during peak times. But with the pricing on offer right now, you’re still better off using that power yourself.

There’s a longer-term play here too. As more households adopt batteries, this starts to lay the groundwork for virtual power plant-style coordination - your battery charging and discharging in response to network signals. That’s genuinely useful infrastructure. But the market for exported stored solar will need to meet the market before that really takes off.

What to actually do about it

Find out who your lines company is if you don't already know. Your address determines it - the ENA has a lines company map if you're unsure.

Ask your retailer whether they're passing on the network export rebate, and in what form. Are they factoring it into a higher flat buy-back rate, or offering it as a time-varying credit?

Compare export rates. My 8c/kWh from Contact is genuinely at the low end. Electric Kiwi's MoveMaster and Octopus's OctopusPeaker both offer meaningfully better peak export rates. View all buy-back rates here.

Don't over-optimise. The scheme is real and the direction is right. But chasing an extra few cents per exported kWh is not the primary lever on your system's economics. Self-consumption is. Every unit you use yourself at 30c+ instead of exporting at 8–17c is worth twice as much, minimum. That means keeping your battery well-tuned, shifting loads where you can, and checking your settings before you start worrying about peak export windows.

The bottom line

The export rebate scheme is a genuine step forward. It shows the electricity market is starting to recognise the value solar and batteries provide in offsetting infrastructure costs.

That said, the “rebate” isn’t going to suddenly tip people into buying solar, or meaningfully shift behaviour around exporting at peak times. It’s more of an acknowledgement - but an important one. Hopefully just the start of prosumers becoming valuable participants in the energy market.

For most households though, exports are still a small slice of the overall solar value, and these rebates are only a small slice of export earnings. The real value is still in what you don’t have to buy from the grid.