इन्धनको बिललाई बिजुलीको हिसाबमा बदल्नुहोस्Turn fuel burn into electricity cost

जेनेरेटर चलाउँदा प्रति घण्टा र प्रति युनिट कति खर्च हुन्छ?How much does your generator cost per hour and per kWh?

चलिरहेको load मा कति litre इन्धन लाग्छ, स्थानीय मूल्य र निस्किएको kW राख्नुहोस्। Grid, battery वा अर्को स्रोतको आफैंले राखेको दरसँग तुलना हुन्छ।Enter fuel use at the actual operating load, your local fuel price, and delivered kW. Compare it with a grid, battery, or other energy rate you enter.

जेनेरेटर र चलिरहेको loadGenerator and operating load

जेनेरेटरको rated outputRated electrical output

kVA मात्र छ भने manufacturer ले दिएको kW rating खोज्नुहोस्।If the plate only shows kVA, find the manufacturer's kW rating.

चलिरहेको electrical loadActual electrical load

एक घण्टाको औसत meter reading सबैभन्दा उपयोगी हुन्छ।An average meter reading over an hour is most useful.

यही load मा इन्धन खपतFuel use at this load

L/h

Tank test वा यही load को manufacturer fuel curve प्रयोग गर्नुहोस्।Use a tank test or the manufacturer's fuel curve at this load.

तपाईंको स्थानीय इन्धन मूल्यYour local fuel price

Rs/L

Rs 200/L काठमाडौंको 3 Sep 2026 नमुना हो। हालको NOC वा supplier मूल्य राख्नुहोस्।Rs 200/L is a Kathmandu example checked 3 Sep 2026. Replace it with today's NOC or supplier price.

अन्य running costOther running cost

Rs/h

Oil, filter र servicing को hourly allowance। थाहा नभए 0 राख्नुहोस्।Hourly allowance for oil, filters, and service. Enter 0 if unknown.

केसँग तुलना गर्ने?Compare with

तुलना गर्ने ऊर्जा दरComparison energy rate

Rs/kWh

आफ्नो bill, battery cycle cost वा supplier को दर राख्नुहोस्।Use your bill, battery cycle cost, or supplier rate.

महिनामा चल्ने समयRun time per month

चलाउने खर्चRunning cost

कुल खर्च प्रति kWhTotal cost per kWhRs 85.00इन्धन र राखिएको अन्य hourly cost सहितfuel plus the entered hourly running cost

कुल खर्च प्रति घण्टाTotal cost per hourRs 425.00

इन्धन मात्र प्रति घण्टाFuel only per hourRs 400.00

इन्धन प्रति kWhFuel use per kWh0.400 L

जेनेरेटरमा परेको loadGenerator load50.0%

Grid cost per hourRs 50.00

प्रति घण्टा फरकDifference per hourRs 375.00 more

महिनाको इन्धनMonthly fuel80.0 L

महिनाको generator costMonthly generator costRs 17,000

For 200 kWh, the generator costs Rs 15,000 more than the entered grid rate.

यो estimate मात्र होThis is an estimate

Fuel burn load, engine condition, altitude, temperature र maintenance सँग बदलिन्छ। यो tool ले kVA लाई मनमानी power factor लगाएर kW बनाउँदैन। Generator capacity, wiring, ventilation, exhaust, earthing वा transfer switch design का लागि योग्य प्राविधिक चाहिन्छ।Fuel burn changes with load, engine condition, altitude, temperature, and maintenance. This tool does not convert kVA to kW using a guessed power factor. Generator sizing, wiring, ventilation, exhaust, earthing, and transfer switching need a qualified professional.

हिसाब कसरी हुन्छ?How the calculation works

एक घण्टा 5 kW load चले 5 kWh ऊर्जा निस्कन्छ। त्यसै घण्टाको इन्धन र अरू running cost लाई 5 kWh ले भाग गर्दा प्रति युनिट खर्च आउँछ।A 5 kW load running for one hour delivers 5 kWh. Dividing that hour's fuel and other running cost by 5 kWh gives the cost per unit.

load % = actual output kW ÷ rated output kW × 100
fuel cost/hour = litres/hour × Rs/litre
energy in one hour = output kW × 1 hour
fuel litres/kWh = litres/hour ÷ output kW
total Rs/kWh = (fuel cost/hour + other Rs/hour) ÷ output kW
comparison cost/hour = output kW × entered Rs/kWh
monthly cost = total cost/hour × monthly hours

Fuel curve load अनुसार बदलिन्छ। त्यसैले एउटा load को L/h अर्को load मा प्रयोग नगर्नुहोस्।Fuel consumption changes with load. Do not reuse an L/hour value measured at a different load.

नमुना हिसाबWorked example

यो कुनै खास generator को specification होइन। उदाहरणमा 10 kW generator ले 5 kW दिँदा 2 L/h इन्धन चल्छ, इन्धन Rs 200/L, अन्य खर्च Rs 25/h, तुलना दर Rs 10/kWh र 40 h/month राखिएको छ।This is not a specification for a particular generator. The example uses a 10 kW generator delivering 5 kW at 2 L/hour, fuel at Rs 200/L, other cost at Rs 25/hour, comparison energy at Rs 10/kWh, and 40 hours/month.

5 ÷ 10 × 100 = 50%जेनेरेटरमा परेको loadgenerator load

2 × Rs 200 = Rs 400/hइन्धन खर्चfuel cost

(Rs 400 + Rs 25) ÷ 5 = Rs 85/kWhकुल energy costtotal energy cost

5 × Rs 10 = Rs 50/hतुलना स्रोतको खर्चcomparison source cost

2 × 40 = 80 L/monthमहिनाको इन्धनmonthly fuel

Rs 425 × 40 = Rs 17,000महिनाको generator costmonthly generator cost

स्रोत र मान्यताSources and assumptions

University of Central Florida, Florida Solar Energy Center, Diesel Power Generators, checked 3 Sep 2026. Its measured and manufacturer data show fuel use changing with part-load ratio, supporting use of the generator's own curve or an operating test rather than a universal L/hour constant.
US Department of Energy, Standby Diesel Generator Fuel Consumption Calculation, checked 3 Sep 2026. The worked engineering calculation uses manufacturer fuel consumption at the expected steady-state kW load and multiplies the resulting hourly rate by operating hours.
NIST Guide to the SI, Appendix B.9, updated 18 Aug 2025 and checked 3 Sep 2026. NIST gives 1 kWh as 3.6 MJ and the litre and time conversions behind the displayed units.
Nepal Oil Corporation, Retail Selling Price, checked 3 Sep 2026. Prices differ by depot area and change, so the calculator requires an editable local Rs/L value.
Nepal Electricity Authority, Consumer Tariff Rates, checked 3 Sep 2026. Grid comparison must use the rate relevant to the user's category and bill rather than one claimed Nepal-wide price.

2 L/h, Rs 25/h, Rs 10/kWh र 40 h/month उदाहरण मात्र हुन्। Generator को fuel curve वा tank test, स्थानीय fuel price र आफ्नो comparison cost राख्नुहोस्। Fuel cost बाहेक खरीद, depreciation, financing, major repair र replacement समावेश छैन।The 2 L/hour, Rs 25/hour, Rs 10/kWh, and 40 hours/month values are examples only. Replace them with a fuel curve or tank test, local fuel price, and your comparison cost. Purchase, depreciation, financing, major repairs, and replacement are excluded.