Comparison

Wind Power Calculator vs K

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Wind Power Calculator

Estimate the power output of a windmill using key factors like air density, windmill efficiency, cross-sectional area, and wind velocity. Understand how wind speed significantly impacts energy generation and calculate year-round energy production for informed decisions.

Highlights
  • Estimate available wind power
  • Calculate power based on key factors
  • Understand wind velocity impact
  • Calculate year-round energy generation
  • Unlock wind energy potential
Features
Read full description

Wind Power Calculator helps estimate the available power generated by a windmill based on several key factors. The formula for available power in the wind is expressed as: Pa = 1/2 ξ ρ A v^3 Where: P = power (W) ρ = air density (kg/m^3) ξ = windmill efficiency (typically below 0.4 or 40%) A = cross-sectional area perpendicular to the wind (m^2) v = wind velocity (m/s) Keep in mind that air density decreases with temperature and altitude, but the most significant factor in power generation is wind velocity. A mere 20% increase in wind velocity can boost power generation by a remarkable 73%. The energy produced by a windmill depends on the power generation, as outlined above, and the frequency of wind speeds at the specific location—referred to as the 'wind speed frequency distribution.' To calculate the total energy generated over a year, you need to sum the power generation for all wind velocities (from the windmill's cut-in speed to its shut-down speed) and multiply it by the hours the wind blows at those speeds. Maximize your wind energy potential and gain insights into year-round energy generation. With Wind Power Calculator, you can unlock the true potential of wind power and make informed decisions for a sustainable future. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

K

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K-SPC is a mobile application tailored for photovoltaic (PV) grid-connected control boxes, focused on displaying the operational status of PV power stations in real time. It not only provides real-time fault alarms for devices such as collectors and electric meters but also offers detailed statistics on voltage, current, and power generation. With K-SPC, power station managers can instantly obtain and analyze the data on power generation and consumption, grasp the economic benefits of the station, and understand the health status of the equipment as well as the effects on energy saving and emission reduction.

Screenshots

Wind Power Calculator4 screens
K4 screens

Verdict

The call

The clearest difference is price: K at Free against Wind Power Calculator's $2.99. K also leads on iOS requirement (11.0 vs 13). Wind Power Calculator's advantage is device support. On in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

K is free to download; Wind Power Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 6 level
Wind Power Calculator versus K: the parameters behind the verdict, then further details
ParameterWind Power CalculatorK
Price$2.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 29 months—
AdsNo—
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — better—
Requires iOS1311.0 — better
Further details — not scored
Size1 MB33 MB
Age rating4+4+
DeveloperNitrioShenzhen Kstar Science & Technology Co., Ltd.

In-app purchases

None

Wind Power Calculator

No in-app purchases

None

K

No in-app purchases

Questions

Is Wind Power Calculator free?
Wind Power Calculator costs $2.99, with no in-app purchases.
Is K free?
K is free to download, with no in-app purchases.

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