Electricity reference

Espresso machine electricity cost

Start with electricity you have measured, not the wattage on the box. Enter your machine’s kWh reading and your own unit rate to cost that observation, then see what repeating the same pattern would mean over a calendar year.

Energy-use guidance from Virginia Cooperative Extension supports the calculations, alongside named Sage manuals and primary unit and calendar references. Checked on 16 September 2026. We have not used or tested any of the equipment on this site.

Last source check: 16 September 2026. Electricity only. No assumed tariff, daily use or heating duty cycle.

Calculate from your own electricity use

A kWh reading is energy accumulated over time. A rating in watts is power, not a record of energy consumed. The manual ratings below are not substitutes for your kWh reading.

Your inputs and assumptions

Personal values are blank because neither a manual nor a national tariff headline can establish how you use your machine or what you pay. After you calculate, changing an input updates the result automatically. An incomplete or invalid input removes the old result.

The interactive calculator is unavailable until its script loads. The formulas, assumptions and source reference below remain readable.

Calculation method

Measured mode uses your recorded energy. The optional scenario holds an entered power constant throughout an entered time. Switching methods clears the displayed result, not your entries.

Measured electricity (kWh)

Your own energy-monitor reading for the machine over the complete observation. Enter accumulated kWh, not a momentary W reading. No default: the source is your measurement, not a site test.

Observation length (whole days)

Your own record of complete calendar days covered by that reading, including days without coffee. No default: do not enter only the days you made drinks. For a part-day session, record a complete-day period before using this mode.

Electricity unit rate (£ per kWh)

Use your supplier’s current bill or tariff agreement, in pounds per kWh including any VAT you pay. No default and no national tariff preset. Confirm its effective dates, your region and payment arrangement. The result applies this same rate throughout.

Calendar-year convention

Default: a common year of 365 days. Choose 366 for a leap year. Source: US Naval Observatory, Leap Years, rule and background, checked 16 September 2026. This is a chosen calendar period, not an average-length year or a prediction of use.

Electricity-only projection

Enter your figures, then calculate.

Energy per average calendar day: Not calculated
Cost per average calendar day: Not calculated
Cost for the observation: Not calculated
Projected cost for the selected year: Not calculated

The editable assumptions are directly above these results. A year projection repeats the observation’s daily average at the same unit rate. It is not a measured annual bill.

Build a useful observation

What your kWh reading needs to cover

Use the same scope for energy and time. The kWh total and the whole-day count must describe the same observation. Note its start and end dates in your own records.
Keep the espresso routine visible. Record whether the period included a cold start, brewing, milk steaming and time left on between drinks. The calculator cannot infer any of those from a model name.
Do not silently drop idle days. An observation that includes your usual non-use days is more relevant to a calendar-year projection than a busy coffee session alone. There is no universal measurement duration assumed here.
Check what the reading includes. A reading covering only the espresso machine does not include a separate grinder or kettle. Warm-up, idle or standby energy is included only when it falls inside the reading’s actual scope.

If you use an energy monitor, follow its own instructions and the machine’s manual. This page does not establish a monitor’s suitability for your equipment. No electrical work is needed or described here.

Formula and interpretation

Energy first, then the price of that energy

Observed cost = measured kWh × your £ per kWh. Divide the measured kWh by the number of observed calendar days to obtain an average daily energy figure. Multiply that daily average by the selected year’s days and the same unit rate for the annual projection.

For a constant-power scenario, kWh = (watts ÷ 1,000) × hours. Virginia Cooperative Extension, Estimating Appliance and Home Electronic Energy Use, BSE-301NP (2020), p. 1, gives “Wattage × Hours Used per Day ÷ 1000” and multiplies consumption by the utility’s rate. Checked 16 September 2026.

In the optional rated-wattage scenario, energy per use-day = (entered W ÷ 1,000) × (entered minutes ÷ 60). Annual scenario cost = energy per use-day × entered use-days × your £ per kWh. The daily result in this mode means a use-day, not an average across every calendar day. The selected calendar-year length limits the use-day count; it does not add days you did not enter.

The calculation principle transfers; the leaflet’s US tariffs, voltages, generic coffee-maker wattages and refrigerator cycling assumption do not form part of this tool. Dividing your measured total by your recorded days is this calculator’s explicit averaging step, not an equipment-performance claim from that source.

Unit reference: BIPM, The International System of Units, ninth edition, V4.01 (June 2026), Table 8, printed p. 140 (PDF p. 142), defines an hour as 60 minutes and a day as 24 hours. Checked 16 September 2026. Calendar projections use whole common or leap years, not a fractional average year.

Manufacturer rating reference

What the named Sage manuals actually state

These are published rating ranges, not measured average draw, consumption per drink or a ranking of machines by running cost. Match the model and market to your own machine. A range is not evidence that either endpoint is its average draw.

Named manual editions, checked 16 September 2026
Model and market	Published rating	Exact source and location	What this does not tell you
Sage Barista Express, UK	1560–1850 W	SES875_UK_UG1_F22, p. 7, Rating Information. Checked 16 September 2026.	How long the machine draws any particular power in your routine.
Sage Bambino, UK	1300–1600 W	SES450_UK_UG1_G21, p. 10, Rating Information. Checked 16 September 2026.	Energy for your combination of warm-up, espresso and steaming.
Sage Bambino Plus, European guide, English section	1300–1600 W	SES500_EU_UG8_K25, p. 7, Rating Information. Checked 16 September 2026.	A like-for-like energy comparison with the Bambino or another machine.

These edition identifiers are retained deliberately. The European Bambino Plus guide is not relabelled as a UK-only document. No midpoint, heating percentage or “typical” daily use is derived from any rating range.

Source and assumption register

What is supplied, what remains yours

Energy and observation length: blank: Your measurement and record of its dates are the sources. Neither a personal value nor its measurement date has been supplied to this page.
Unit rate: blank: Your supplier’s applicable bill or tariff agreement is the source. There is no quoted current UK tariff here. Check the rate and effective period whenever you calculate; the page cannot check them for you.
Days in the projection: 365 by default, 366 available: US Naval Observatory, Leap Years, rule and background, checked 16 September 2026, explains the ordinary calendar base and added leap day. Using a common year by default is a visible calculator convention, not an assumption that you make coffee every day.
Scenario power, minutes and use-days: blank: The power source is your applicable label or exact manual; the duration and day count are your chosen scenario. The constant-power assumption is displayed where you enter them and beside its results. No manufacturer rating is silently selected and no heating duty cycle is applied.
Electricity formula and units: The Virginia Cooperative Extension and BIPM references above establish energy, power and time arithmetic. Their document editions and page locations are shown beside the formula. No appliance-use benchmark is imported.
Manufacturer ratings: The named Sage editions, page references, markets and check date are given in the table. They remain manufacturer specifications, not independently measured performance.

Current maintenance state of this reference

The last-checked date records the sources opened for this edition. It is not a promise of continuous monitoring. The linked manual editions and documented assumptions are fixed to this source check; this tool does not fetch new manuals or live electricity prices. If your documentation differs, use the edition that matches your machine rather than treating this table as proof of a later model’s rating.

A change to your bill, machine, observation period or coffee routine calls for a fresh set of personal inputs. The calculation cannot establish that an old observation remains representative.

Limits

What the result can and cannot answer

It is not the complete electricity bill. This calculation charges only the entered energy at the entered unit rate. It does not allocate a household standing charge.
It holds the unit rate constant. If your rate varies by time, a single rate may not describe your observation. Cost the energy in each tariff period separately before combining those costs; do not use an unweighted average of prices.
It projects, rather than measures, a year. Holidays, changing drink patterns, seasons and tariff changes are not predicted. The observation’s coverage and your energy monitor’s accuracy still matter.
It is electricity only. Beans, milk, water, filters, cleaning products and equipment purchase costs are outside this reference.

For the separate care decisions, see the reminders documented for each machine. If you are budgeting for a first setup, consider the equipment decisions beyond the machine itself. Our explanation of how this site is compiled sets out the limits of documentation-based guidance.