Mercury EnergyDomestic offer Everyday Open Term
Contract Length: no fixed term
Exit Fees: no exit fees
Your Energy Plan Tariff Explained
- Plan type: Everyday Open Term is a no‑contract residential electricity plan with a variable tariff structure. Customers pay a daily fixed charge plus per‑kWh variable charges that depend on the meter tariff at the property (e.g., Anytime, Controlled, or Day/Night), the local network, and user category (Standard or Low User where available).
- How charges are calculated: your bill combines the daily fixed charge × days and the variable charge × kWh recorded for each applicable meter register (e.g., Anytime, Controlled hot water, Night). Levies and GST are added. If Mercury updates prices part‑way through a billing period, the bill will pro‑rate old and new rates either side of the effective date.
- Optional time‑based saving: eligible customers can add the EV Discount for 20% off variable usage consumed between 9pm–7am (smart meter and other conditions apply). This modifies the charge calculation during those hours but does not change the underlying tariff type.
- Daily fees and kWh rates: these vary by region, network, and meter configuration. Mercury publishes personalised pricing during sign‑up based on your address and meter. If you need exact figures for your property, please contact Mercury directly.
- Eligibility: residential supply only; credit checks and network/meter suitability apply. Smart meters are required for granular time‑based discounts and for precise Free Power Day credits.
Additional Services Included
- Optional add‑ons are available but not included by default with Everyday Open Term.
- Broadband can be bundled (fibre or wireless), with standard plan prices published and periodic promotions (e.g., months free on selected plans) offered when combined with electricity; availability and monthly charges depend on technology and address.
- A landline can be added to broadband from a low monthly fee with capped‑rate calling options. Mobile services can be added to an electricity or broadband bundle, with periodic promotions such as three months’ plan charges free; standard mobile plan prices apply thereafter.
- Piped gas can be added (Dual Fuel), which also attracts a small daily dual‑fuel discount at the same address.
- For solar users, Mercury provides a standard residential buy‑back for exported energy and can arrange import/export meter installation (typical installation fees vary by location and meter capacity).
- If no add‑ons suit your needs or are unavailable at your address, you can keep electricity only..
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Who Gets the Most from This Plan?
Everyday Open Term suits households that value flexibility and simplicity over locking into a fixed‑term: renters, small families, and larger homes that prefer standard variable pricing with the option to change plans without exit fees. It also fits customers on networks where Controlled or Day/Night meter tariffs are available and who want straightforward daily and per‑kWh charges. It can be particularly cost‑effective for EV owners who can shift charging to the night window and add the EV Discount (20% off variable usage from 9pm to 7am) to capture regular, predictable savings. Solar households can remain on Everyday Open Term while exporting excess power; Mercury’s standard residential buy‑back rate applies by default, with higher promotional buy‑back available only under specific fixed‑term solar arrangements. Everyday Open Term is not designed for business use; small businesses should consider Mercury’s business plans.
- 💰 Everyday Open Term customers can access Mercury Rewards to unlock Free Power Days: a full 24 hours of free electricity credited within 35 days
- 💰 You receive an annual anniversary bonus that scales with tenure (one day after 1–2 years, two days after 3–4 years, and three days after 5+ years), and you can also redeem points for additional Free Power Days
- 💰 A communicating smart meter is required to calculate the exact value on the day; if one isn’t available, Mercury applies a credit based on your average daily usage plus an uplift
- 💰 Terms apply and rewards must be activated in the Mercury app or My Account. EV owners can add the optional EV Discount: 20% off all variable electricity usage consumed between 9pm and 7am at the primary residence
- 💰 A communicating smart meter is required, and the discount does not apply to daily fixed charges, levies, or GST
- 💰 The EV Discount can’t be combined with some other promotional offers. Payment and bundle-related incentives include the Easy Pay Discount (2% off eligible electricity charges when you pay by direct debit from a bank account and receive bills by email; exclusions and conditions apply) and a small Dual Fuel Discount when you add piped gas to the same address (credited daily)
- 💰 Partner or channel offers may also be available from time to time for open‑term customers (for example, partner “mates’ rates” that discount headline prices and/or include a joining credit); these have specific eligibility, durations (often up to 24 months), and non‑combinability conditions.
How Your Plan Pricing Can Change?
On Everyday Open Term, Mercury may change electricity prices by giving customers notice—typically at least 30 days before the effective date When a change is driven by third‑party changes (for example, lines companies or regulators) and 30 days’ notice is not reasonably possible, Mercury provides as much notice as it can Bills that span a change date are pro‑rated to show charges at the old and new rates. Valid reasons for price adjustments include updates to transmission and distribution (lines) charges set or constrained under regulatory settings, metering costs, market and wholesale energy cost movements, government or regulatory levies and compliance changes (including the multi‑year phase‑out of Low Fixed Charge regulations), inflationary or cost‑to‑serve impacts, and corrections if meter configuration or pricing category information was incorrect Fixed‑term plans may have separate price‑change protections; Everyday Open Term has no fixed price period and remains subject to change with notice.Mercury EnergyDomestic offer Piped Natural Gas (Residential)
Contract Length: no fixed term
Exit Fees: no exit fees
Your Energy Plan Tariff Explained
- Tariff type and plan structures: Mercury offers both Fixed (e.g., 1‑year fixed‑price plans) and Variable open‑term “Everyday” plans for residential electricity. Your variable usage charges follow the meter tariff at your property (e.g., Anytime/24‑hour, Controlled, Night/Day, Inclusive, and regional time‑bands). Night/Day off‑peak windows commonly run around 11pm–7am (network dependent). Charges comprise a Daily Fixed Charge plus per‑kWh variable rates; EA Levy and GST apply.
- How charges are calculated: Daily Fixed Charge × billing days + (meter‑specific variable rates × metered kWh by register). For example, Controlled registers are priced lower in exchange for load control, while Night/Day splits price by time band. Customers may also unlock free periods via Rewards (a Free Power Day gives 24 hours free, credited within 35 days). EV Discount, if eligible, gives 20% off variable usage between 9pm–7am (smart meter required).
- Bundling with piped gas: If you have both electricity and piped gas at the same address, a Dual Fuel Discount is applied to the gas charges (currently advertised as 17.25 cents/day incl. GST, equivalent to 15 cents/day ex GST). This discount does not change electricity unit prices but lowers your overall combined cost.
- Price per kWh and daily fees: Mercury sets region‑ and meter‑specific prices. To confirm current per‑kWh and daily charges for your property and meter, contact Mercury with your address/ICP. If a region’s rate cannot be confirmed, please contact the provider directly.
- Eligibility notes: Time‑of‑use and EV Discount benefits require a communicating smart meter; Free Power Day credits can still be applied without a smart meter (credit is based on average daily usage plus 50%).
Additional Services Included
- <p>Mercury Rewards (included): Eligible residential electricity customers can activate Rewards in the Mercury App/My Account at no cost.
- Rewards provides points, Free Power Days, and occasional targeted offers.
- Mercury App and My Account (included): Account management, usage tracking (hourly/daily where smart meters are communicating), bill payment and reward redemption.
- Price: free. Broadband (optional add‑on): Residential broadband can be bundled on open or fixed‑term offers; public pricing indicates entry plans from $65/month for FibreLite (router or P&H may apply depending on the technology and offer).
- Periodic bundle promotions may include free months when linked to electricity.
- Mobile (optional add‑on): Post‑paid mobile plans can be bundled; current bundle promotions commonly provide the first 3 months of the monthly plan charge free when combined with an eligible energy/broadband offer.
- Standard plan pricing then applies after the free period.
- To retain the free months, at least one energy or broadband service must remain active during the offer period.</p>.
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Who Gets the Most from This Plan?
Small families and standard households: The combination of a simple open‑term plan or a 1‑year fixed plan plus Rewards (e.g., Free Power Days) suits families who value predictable pricing with occasional high‑use days (e.g., laundry, cooking, heating) and who want a Dual Fuel Discount on gas when bundling. • Large households and high users: Standard User pricing structures (higher daily charge, lower variable rates) and options like EV Discount (20% off variable usage 9pm–7am) can help heavier‑use homes or those able to shift usage overnight reduce costs. Free Power Days are particularly valuable if you can batch energy‑intensive tasks. • EV owners and night‑shift users: Customers who charge vehicles or can run appliances overnight benefit from the EV Discount and Night/Day or Controlled tariffs. Solar users should note some fixed‑price electricity plans don’t combine with solar buy‑back options; moving to a solar plan generally shifts you to open‑term rates, so solar households may prefer open‑term plans for flexibility.
- 💰 <p>Dual Fuel Discount: When you take piped natural gas and electricity at the same address with Mercury, a daily Dual Fuel Discount is credited to the gas portion of your bill (shown as a separate credit on the gas charges line)
- 💰 Eligibility is determined using industry registry data confirming both services at the same address
- 💰 The discount applies while both services remain active on the same account and address; if either service is removed or the address changes, the discount stops
- 💰 The discount is presented inclusive of GST on public plan pages and may be described exclusive of GST in help content; the current advertised inclusive-GST daily amount is 17.25 cents/day (equivalent to 15c/day ex GST)
- 💰 Join offers for electricity: Mercury regularly runs join credits for new electricity customers on fixed terms (e.g., a $300 electricity credit on a 1‑year term)
- 💰 These typically require you to remain on the fixed term for its duration; early termination fees may apply if you leave early
- 💰 Offer availability, amounts and eligibility can vary over time and by channel
- 💰 Prices may change during the term where stated in the offer terms. Ongoing electricity rewards and targeted discounts: Eligible residential electricity customers can activate Mercury Rewards in the app to earn points and unlock Free Power Days (24 hours of free electricity credited within 35 days)
- 💰 Anniversary bonuses scale with tenure (1 day after 1–2 years, 2 days after 3–4 years, 3 days after 5+ years)
- 💰 If you don’t have a smart meter or it isn’t communicating, the Free Power Day credit is based on your average daily usage plus 50%
- 💰 EV Discount: eligible EV owners with a smart meter can receive 20% off variable electricity usage between 9pm and 7am at their primary residence (cannot be combined with selected promotional bundles)
- 💰 Mobile bundle: adding a Mercury mobile plan to certain electricity/broadband join offers provides the first 3 months of the mobile plan charge free, provided at least one energy or broadband service is retained throughout the free period.</p>
How Your Plan Pricing Can Change?
<p>Open-term electricity prices can be changed by Mercury with advance notice (typically at least 30 days; if the change is driven by a third party and 30 days isn’t possible, notice is given as soon as reasonably practicable) Bills issued spanning an effective date may show charges at the old and new prices for the relevant periods Reasons Mercury cites for price changes include updates to transmission and distribution (lines) charges, metering costs, market levies, regulatory or policy changes (e.g., Low Fixed Charge phase-out, determinations by regulators), and broader supply‑chain/wholesale cost movements For fixed‑term plans, some offers fix energy prices for the term (excluding GST and service fees), while others allow price changes with 30 days’ notice as stated in their offer terms If a fixed‑term price is permitted to change under the relevant offer, Mercury will notify you in advance and, where applicable, you may have the option to terminate without early termination fees if the change is detrimental, as described in the plan’s terms.</p>Mercury Energy Business offer Business Fixed Pricing
Contract Length: no fixed term
Exit Fees: no exit fees
Mercury Energy Business offer Business Spot Pricing
Contract Length: no fixed term
Exit Fees: 2.0c per kWh of forecast consumption remaining in the term + $140 admin fee per ICP (plus GST)
Your Energy Plan Tariff Explained
- Tariff type: Time-of-Use (TOU) with wholesale spot price pass-through. Energy is billed to your site in half-hourly intervals at the New Zealand Electricity Market spot price, plus any retailer and plan-specific charges set out on your Price Schedule. Smart/TOU metering and industry-compliant meter data are required.
- How charges are calculated: (a) Variable energy charge = market spot price per kWh for each interval at your ICP + plan-specific components (per your Price Schedule); (b) a daily fixed charge applies; and (c) "Other Charges and Costs" are passed through, including transmission/distribution (and any demand charges where applicable), metering, government levies, and GST. No guaranteed "free" periods apply under this plan.
- Billing mechanics: Prices specific to your account (e.g., daily charge and any retailer margin) are provided in your Price Schedule, which has an offer expiry date and may specify a contracted term. If a new arrangement isn’t agreed at term-end, pricing moves to Mercury’s then current standard rates or spot-market-linked pricing, as applicable.
- Regional rates: Mercury does not publish online region-by-region per‑kWh prices for Business Spot Pricing. For Northland, Auckland, Waikato, Bay of Plenty, Central North Island, Eastland, Taranaki, Whanganui, Wellington, Marlborough, Westland, Canterbury, Otago, and Southland, please contact Mercury to confirm your applicable daily charge, any retail margin, and pass-through network components under this spot-linked plan.
Additional Services Included
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Who Gets the Most from This Plan?
Business Spot Pricing suits organisations that can monitor and shift consumption to lower‑priced off‑peak periods or respond to market signals (e.g., light manufacturing, warehousing, cold storage, irrigation, or facilities with flexible HVAC/process loads). Customers already on TOU metering and comfortable with wholesale price variability can benefit when spot prices are low, but must be able to tolerate or manage volatility. It also aligns with small and medium businesses adding EV charging (able to schedule charging to off‑peak periods) or operating with on‑site solar where grid imports can be timed around production and market conditions. Households (small families/large households) are not the target audience because Rewards and residential offers differ from business eligibility, and business spot pricing is set up under Mercury’s business terms.
- 💰 <p>Mercury’s business accounts (including Business Spot Pricing) are not eligible for Mercury Rewards such as Free Power Days
- 💰 Rewards require a residential account and do not apply to business customers
- 💰 Active business-focused discounts are typically offered via Mercury’s partnerships
- 💰 These include special partner discounts for members of the Early Childhood Council (ECC), PGG Wrightson, and n3
- 💰 ECC states members receive 6% off their monthly recurring electricity invoice with Mercury (eligibility: active ECC membership; applies to centres)
- 💰 PGG Wrightson promotes a 6% discount on everyday fixed and variable electricity rates plus the option to consolidate billing via a PGG Wrightson Monthly Trade Account (eligibility: billing through a PGG Wrightson account; partner terms apply)
- 💰 Mercury’s small-to-medium business page also notes a partner discount for n3 members (percentage not disclosed; eligibility: active n3 membership)
- 💰 Always confirm whether a given partner discount applies to a spot/wholesale pricing plan, as some partner offers reference standard/everyday rates. </p>
How Your Plan Pricing Can Change?
<p>Under Mercury’s Business General Terms, changes to prices, fees, or plan terms generally require at least 30 days’ notice If the change is minor and beneficial or of immaterial consequence, Mercury may make it without notice For plans with energy price flexibility (such as spot/wholesale-linked pricing), Mercury notes it will not contact you for the routine movement of energy prices, which can change in a shorter timeframe in line with market conditions If a fee or energy charge increase results in more than a 5% rise in the charge or total invoiced energy price (and is likely to have a material effect), a separate written notice with reasons is provided as soon as possible For Business Spot Pricing specifically, the energy component follows the wholesale market Invoices also pass through “Other Charges and Costs” (network, metering, and government levies), which may change when underlying third‑party or regulatory charges change; GST applies At the end of any contracted term, if you do not enter a new agreement, pricing moves to Mercury’s then‑current standard prices or spot‑market‑linked prices according to meter type. </p>Mercury Energy Business offer Business Blended Pricing
Contract Length: no fixed term
Exit Fees: 2.0c per kWh of forecast consumption remaining in the term + $140 admin fee per ICP (plus GST)
Your Energy Plan Tariff Explained
- Tariff type: Fixed blended business pricing. A single c/kWh usage rate bundles energy + network (lines) charges, paired with a daily fixed charge. It is typically offered on a fixed‑term agreement for eligible non‑half‑hour meters (Classic Fixed Rate option). No free‑power windows apply by default. Eligibility and meter configuration are confirmed at quote.
- How charges are calculated: You pay a daily fixed charge plus a per‑kWh variable charge for all consumption recorded by your meter(s). If prices are adjusted mid‑billing cycle, Mercury pro‑rates the bill at the different rates across the period. Any applicable government levies, GST, or changes to distribution/lines costs may be passed through per contract terms.
- Peak/off‑peak or free periods: Not generally applicable on the blended business plan (it’s an anytime rate). Where a site has controlled circuits or TOU metering, alternate pricing options may be quoted case‑by‑case.
- Price per kWh and daily fees: Mercury does not publish standard business blended rates online. Actual c/kWh and daily charges are site‑specific and depend on meter set‑up and local network. Contact Mercury for a written quote for your ICP(s).
- Regional pricing: For Northland, Auckland, Waikato, Bay of Plenty, Central North Island, Eastland, Taranaki, Whanganui, Wellington, Marlborough, Westland, Canterbury, Otago, and Southland, specific blended c/kWh and daily charges are not published; please contact Mercury directly to confirm your site’s rates.
- Notable contract mechanics affecting price: Even on fixed/blended agreements, Mercury may pass through changes to GST, the forecast effect of ETS changes on energy costs, Mercury fees, and other lines/taxes/levies. Early termination fees can apply on fixed terms.
Additional Services Included
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Who Gets the Most from This Plan?
Best suited to small and medium businesses (including multi‑site SMEs) that want bill certainty and administrative simplicity via a single blended per‑kWh rate and daily charge, and whose usage is relatively steady across the day/week. It’s less suited to users who can reliably shift large loads off‑peak to capture time‑of‑use or spot‑exposed savings, or very large C&I customers who may prefer bespoke fixed/spot combinations and risk‑management structures.
- 💰 <p>For business customers on Mercury’s business blended-style pricing (a fixed, single per‑kWh energy+lines rate with a daily charge), the primary published discounts are membership-based partnership offers
- 💰 Mercury runs distinct plans for verified members of partner organisations such as n3 (procurement group), the Early Childhood Council (ECC), and PGG Wrightson account holders
- 💰 These plans are only available while membership/account status remains current, cannot be combined with other Mercury plans, and are subject to eligibility at Mercury’s discretion
- 💰 In the PGG Wrightson arrangement, Mercury bills your PGG Wrightson account and the discount may be withdrawn if the account is not kept in good standing. Key terms include Mercury’s right to provide 30 days’ written notice of changes if a partnership contract ends or is amended, and that the general Business Terms and the Electricity & Piped Gas terms apply to these offers
- 💰 Discount levels and per‑kWh prices are not published publicly and are typically set on a site‑specific basis; eligible businesses need to request a quote via Mercury or the relevant partner channel. </p>
How Your Plan Pricing Can Change?
<p>Mercury’s Business General Terms allow changes to pricing, fees, and other terms Minor changes that are beneficial to you or of immaterial consequence (including alignment to good industry practice or mandated requirements) may be made without notice; Mercury can reduce charges/fees at any time without notice If you are on a plan that provides for energy price flexibility, energy prices relating to the time/volume of energy may increase in a shorter timeframe in line with that plan In all other cases, Mercury gives not less than 30 days’ notice of changes If an energy charge/fee increase or the total invoiced price of the energy supplied is more than 5%, a separate written notice including reasons for the increase is provided You may choose an alternative pricing plan within 30 days of notice, and if you reasonably believe a change is detrimental, you may terminate the affected service/contract without exit fees by notifying Mercury within a reasonable time. If prices change during a billing cycle, Mercury pro‑rates the bill across the applicable rates On fixed price business agreements, Mercury reserves the right to pass through changes to GST, the forecast effect of ETS changes on energy costs, Mercury fees, and distribution/lines and government taxes/levies (including the Electricity Authority levy) Automatic renewal and end‑of‑term price notifications are set out in the fixed‑price special conditions. </p>Frequently Asked Questions about Electricity Rates
❓What’s the difference between fixed, variable, and spot pricing?
- Fixed rate: Your price per kWh stays the same for your contract term.
- Variable rate plans: Prices can change when the provider adjusts its rates, often in line with wholesale energy costs.
- Time-of-use plans: You pay different rates depending on when you use power (cheaper overnight, higher during peaks).
- Spot pricing: Your rate fluctuates with real-time wholesale prices. This can mean savings during off-peak times but higher costs during spikes.
❓What is a “fixed charge” and why do I pay it every day?
The daily fixed charge helps cover network maintenance and connection costs. You pay it even if you don’t use any electricity that day a bit like a line-rental fee for staying connected to the grid.
NZ also has low-fixed-charge plans for households that use less than 8,000 kWh per year (9,000 kWh in the lower South Island). These plans charge a smaller daily fee but a slightly higher unit rate.
❓Why do different regions have different electricity prices?
Each part of NZ has its own distribution network, and the cost of maintaining it varies. For example:
- Remote or rural lines cost more per customer to maintain than city networks.
- Some networks (like Wellington or Auckland) have more underground cabling pricier to upgrade but less storm-prone.
That’s why someone in Dunedin might pay different rates from someone in Hamilton, even with the same provider, being Mercury Energy or other.
❓How to Tell if You’re Getting a Good Electricity Deal?
When comparing electricity plans, look beyond just the headline price. Here’s what to review carefully:
- Unit rate (¢/kWh): This is the price you pay for each unit of electricity used — the lower, the better.
- Daily charge: A fixed cost added each day, regardless of usage. Compare these across providers.
- Time-of-use plans: You pay different rates depending on when you use power (cheaper overnight, higher during peaks).
- Contract term and exit fees: Check how long you’re locked in and what it costs to leave early.
- Discounts or bundle offers: Some plans include perks for paying on time or combining electricity and gas.
- Service reliability and app tools: Consider the provider’s reputation for customer support and whether they offer helpful online or mobile account management.