Running PRISM Live Studio continuously on a spare PC costs whatever the PC’s measured electricity use adds to your bill, plus any optional software or internet charges that apply to you. There is no honest universal monthly price: you need the complete setup’s wall-power draw, the hours you plan to stream, and your electricity tariff.
Use this calculation: average wall power in watts ÷ 1,000 × streaming hours × price per kilowatt-hour. For a 30-day continuous month, use 720 hours. PRISM’s basic live-streaming features are free according to its June 2025 announcement, but optional premium features and your own setup may involve separate costs.
Why there is no universal monthly cost
“How much does it cost to run PRISM Live Studio 24/7 on a spare PC?” has no fixed answer because the application is only one part of the cost. Your PC’s actual power draw varies with its components, settings, scene complexity and workload. Your electricity tariff then turns that measured use into a local bill amount.
The PC’s power-supply rating is not a measurement of what it draws while streaming. A supply marked with a maximum capacity does not show how much electricity your complete computer uses at the wall during your particular workload. Nor can a general description such as “low-budget PC” tell you the answer: two machines of similar age or price can have different components and draw different amounts of power.
Separate three categories before estimating:
| Cost category | What to count |
|---|---|
| Electricity | The PC, and other devices you choose to include, measured or estimated at the wall |
| Software | PRISM’s free basic streaming features; optional paid features only if you need them |
| Internet | Only a real plan upgrade, overage or data-cap fee that applies to your account |
This keeps a software subscription from being mistaken for an electricity charge. It also avoids treating an internet bitrate recommendation as if it were a broadband price. If you are planning a channel as a business, electricity is one operating cost among others; it does not tell you whether a channel will earn income. The practical cost categories are worth separating before considering how to monetise a 24/7 YouTube live channel.
Measure the complete PC at the wall
To get a useful number, measure the computer while it is doing the work you intend to leave running. A plug-in electricity meter between the PC’s mains plug and the wall socket can report power draw or energy use, depending on its functions. If you use one, follow its instructions and observe the reading after the stream has settled into its normal workload. Do not infer consumption from a label on the power supply, a component’s maximum rating or an idle reading taken before streaming.
First build the PRISM scene you plan to use. Include the actual video or images, audio sources, overlays and other active elements. Set the output resolution, frame rate and encoder you intend to keep. Then run a private or otherwise appropriate test stream and let the PC reach its normal operating state before noting the meter reading. The aim is not to prove that the computer can run unattended indefinitely; it is to measure the workload you expect to operate.
A single instant reading can move around as the PC works. If your meter can show accumulated energy over a period, that can help you form an average across the test rather than relying on one moment. If it only reports watts, check it at several points under the same settled workload and use a representative average. Record the test conditions too: resolution, frame rate, scene, encoder and whether the display was on. Without those notes, it is difficult to know whether a later measurement is comparable.
PRISM’s desktop getting-started guide lists vendor hardware requirements, but those are not a substitute for measuring your own power use or testing your intended scene. The guide gives a Windows minimum of Core i3-9100 or higher, 8 GB RAM and NVIDIA GTX 1060 or equivalent, and a general-streaming recommendation of Core i5-8500 or higher, 16 GB RAM or more and RTX 2070 or equivalent. These are PRISM’s published specifications, not a promise that every machine meeting them will remain stable in every 24-hour setup.
Use the electricity-cost formula
Write the estimate in this order:
Monthly electricity cost = average wall power (W) ÷ 1,000 × monthly streaming hours × electricity price per kWh.
The division by 1,000 converts watts into kilowatts, which is the unit used in a tariff priced per kilowatt-hour. A kilowatt-hour is one kilowatt used for one hour. For example, if you had a measured average of 100 W, it would be 0.1 kW; multiply that by the hours the PC runs, then by the price your bill charges for each kWh. This is an illustration of the arithmetic, not a standard draw for a streaming PC or a suggested tariff.
Fill in your own worksheet:
| Input | Your value |
|---|---|
| Average measured PC wall draw | ___ W |
| Planned streaming time | ___ h per month |
| Electricity price | ___ currency units per kWh |
| PC electricity estimate | (W ÷ 1,000) × hours × tariff = ___ |
Keep the units consistent. If your bill uses rupees per kWh, the result is in rupees; if it uses another currency, the result follows that currency. Include only the electricity price that applies to your account. A bill may have fixed charges, taxes, slabs or other components; this simple calculation estimates energy use at the selected unit tariff and does not replace reading the bill’s full charging rules.
If your measured draw changes materially with the scene or settings, measure the intended setup again rather than applying a convenient number to a different workload. If streaming hours vary by day, add the planned hours for the month instead of assuming a full 24-hour schedule. The formula remains the same whether you stream every day or only for part of each day.
Estimate a continuous 30-day month
For a 30-day month streamed without a break, there are 720 hours: 24 hours × 30 days. Put 720 into the formula, then multiply it by your measured kilowatts and tariff. If the stream is scheduled for fewer hours, use those planned hours instead. A calendar month may have a different number of days, so for a more precise estimate, use the actual number of days in the month multiplied by 24.
For a hypothetical calculation only, suppose a meter showed an average of 100 W and the tariff were 8 currency units per kWh. The PC would use 0.1 kW × 720 hours, or 72 kWh, during the assumed 30-day period. At the assumed tariff, the electricity estimate would be 576 currency units. Both the wall draw and the tariff here are deliberately hypothetical; they are not a typical PC figure or a claim about any reader’s bill.
A straightforward way to make your own result useful is to save three numbers together: measured watts, monthly hours and tariff. If you change the encoder, add a live camera, introduce more sources or leave a display running, the earlier estimate may no longer describe the new setup. Re-measure when the workload changes, and keep the old conditions beside the old result rather than treating either as a universal figure.
There is also a difference between the cost of being live and the cost of keeping a complete archive. YouTube says a stream longer than 12 hours may not be captured at all, and recommends maintaining a local backup when an archive matters. That means a 24-hour live broadcast does not guarantee a complete saved video. If a full recording is important, account for the separate storage and equipment needs, and consider whether planned segments suit your channel better. See YouTube’s live-stream archive guidance before deciding how to structure the broadcast.
Include other equipment only when applicable
Decide what your cost estimate is meant to cover. If the question is “what does the PC itself use?”, measure just the PC. If you want the electricity used by the complete streaming corner, include the other equipment that is actually powered for the stream and not already included in the measurement.
Common additions are a monitor, router or modem, lighting, speakers, capture devices and cooling equipment. Do not add devices by habit: a monitor switched off during an unattended overnight stream does not belong in the overnight estimate. Conversely, if the PC remains connected through a router that is on anyway, you may want a whole-setup estimate for budgeting, but note that the router’s use may not be an incremental cost caused by streaming.
You can measure each device separately and apply the formula to each, then add the results. Alternatively, a suitable meter or measurement arrangement may let you measure a group together, but only if it safely covers the connected load and actually includes every device you mean to count. Avoid double-counting: if the PC and monitor are both connected to a measured power strip, do not add the monitor’s separate estimate on top of that combined reading.
For always-on home internet equipment, its contribution can be estimated separately if it is powered for the stream and you want it in the total. The router and modem cost-estimate guide covers how to handle those devices without mixing them into the PC’s measured draw. Keep any shared household device distinct from equipment that runs only because of the channel; the distinction helps you understand the incremental cost.
Lighting and cooling depend on the room and operating conditions. If you use a light only while recording or presenting, count its actual hours rather than all 720. If the room’s fan or air conditioning runs for other reasons, a whole-house bill cannot cleanly assign its cost to one stream without a more deliberate comparison. The goal is a transparent estimate, not false precision.
Use your local electricity tariff
A power reading does not become a bill amount until you pair it with the rate on your electricity plan. Use your own bill, provider account or official tariff information for the unit price and applicable billing rules. In India, the rate and bill structure can differ by state, distribution company, consumer category and usage slab, so a number found for another household may not fit yours.
Check whether your bill gives a per-unit energy price, a slab schedule, time-of-day rates or other relevant conditions. If the rate changes depending on total household use, a simple flat-rate multiplication is only an estimate. Where the bill has a range or multiple applicable rates, calculate a low and high case using plausible rates from your own plan, and label them clearly rather than presenting one as exact.
Do not add a generic internet charge to the electricity result. YouTube’s encoding guidance recommends 5 Mbps for H.264 at 720p30 and 10 Mbps for 1080p30, but that is a stream setting recommendation, not a broadband tariff or data-cap price. The appropriate setting depends on what your upload connection can sustain and the quality you need; test the selected quality against your connection. You can review YouTube’s recommended encoder settings alongside the available upload capacity.
If your provider charges an overage, requires a plan upgrade or applies a data cap, include the charge only if it actually applies to your connection. Do not assume that continuous streaming automatically creates an extra charge: the plan details determine that. For a recurring channel schedule, also keep account access and platform readiness separate from cost. YouTube’s eligibility page says the channel must be verified and have had no live-streaming restrictions in the preceding 90 days; check YouTube’s current live-streaming requirements before relying on the channel.
Keep the stream workload within the spare PC’s limits
The lowest electricity estimate is not useful if the PC cannot sustain the intended output. Before buying hardware, simplify the scene and test the actual video and audio sources. PRISM’s performance guidance recommends reducing scene/source complexity, lowering output resolution, bitrate and frame rate, closing resource-heavy programmes, and using hardware encoding when a suitable discrete GPU is present. For limited processing power, PRISM says to set FPS to 30 or lower. Consult its performance optimisation guide for the current settings advice.
There is a trade-off between quality, processing load and upload capacity. A simpler 720p30 scene may ask less of a constrained setup than a more demanding output, but there is no guarantee without testing your own machine and connection. Avoid changing several settings at once: adjust one, run a test, and note both stream health and measured wall power. That gives you evidence about whether a lower-load configuration changes your estimate.
A computer that streams while someone is present may need a different plan when left unattended. Automatic operating-system updates, sleep settings, power interruptions and a failed application can all interrupt service. Plan how you will notice a drop and recover it. If keeping your own PC on overnight is the specific burden, StreamNeo can remove the need to leave that computer running by taking an uploaded video and broadcasting it continuously to YouTube; it does not change the need to check the video, channel access and stream arrangement.
Finally, decide whether you truly need one unbroken stream. YouTube cautions that streams over 12 hours may not be captured as an archive. A schedule built from shorter sessions may better fit an archive requirement, while an always-on loop may suit a channel where live availability matters more. The guide to scheduling prerecorded church sermons as a continuous YouTube live playlist is relevant if your content is a set of prepared files rather than a live camera feed.
Separate PRISM’s software cost from the power bill
PRISM’s official 5 June 2025 announcement said that basic features, including live streaming, would remain free. It announced PRISM Plus at US$9.99 per month or US$79.99 per year, with paid features such as desktop multistreaming to up to six channels, premium templates and ad removal. Those are the announced US prices, not a guaranteed current quote: confirm PRISM’s current plan page before subscribing. A basic single-platform YouTube stream need not include PRISM Plus in its baseline calculation.
This distinction matters when you compare a simple stream with a multichannel workflow. If you only need one YouTube destination and the free functions meet your needs, do not add an optional subscription to the estimate by default. If you need a premium function, record its current price separately from electricity and verify the plan terms in your region. PRISM’s announcement is available on its official subscription announcement page.
Internet is a third line, not part of PRISM’s software price or the PC electricity formula. Add a broadband cost only when there is an actual additional charge, such as a required plan change, overage or applicable cap. This produces a more useful monthly budget than combining unrelated prices into one unsupported universal figure.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
How do I calculate the monthly electricity cost for PRISM Live Studio?
Measure average wall power for the complete PC while it runs your intended PRISM scene and settings. Divide watts by 1,000, multiply by planned monthly streaming hours, then multiply by your electricity price per kWh. Use your own tariff and actual hours; 720 hours is the assumption for a continuous 30-day month.
Can I use the power-supply rating as the PC’s wattage?
No. The rating describes the supply’s capacity, not measured consumption at the wall during your stream. Measure the PC under the workload you intend to run instead.
Does a 24-hour YouTube livestream always save a full archive?
No. YouTube says streams longer than 12 hours may not be captured at all. If a complete archive matters, check YouTube’s current guidance and make a local backup plan rather than assuming the live broadcast will be fully saved.
Is PRISM Live Studio free for a single YouTube stream?
PRISM’s June 2025 announcement said basic live-streaming features remain free, while optional premium features are paid. Confirm current plan details before subscribing, and count an optional plan only if you need its features.