Charania Renewables’ own vertical-axis wind turbine brand — engineered for urban rooftops, industrial estates and hybrid energy systems across Pakistan. Low cut-in speed, ultra-low noise, IEC certified. Seven models from 50W to 5kW.
Vertical-axis design operates in turbulent, multi-directional urban wind without yawing to face the source.
Lowest cut-in speed across the range. Generating in wind conditions that horizontal-axis turbines cannot use.
Ultra-low noise from the coreless disc generator. Suitable for occupied buildings and urban industrial sites.
IEC 61400-2 and IEC 61400-12 certified across the GV commercial range. 20-year design life.
Conventional horizontal-axis turbines need large open sites with consistent unidirectional wind. They yaw to face the wind, require high cut-in speeds and generate significant noise — none of which suits an urban rooftop or an industrial estate in Karachi, Lahore or Faisalabad.
Vertix vertical-axis turbines operate in turbulent, multi-directional wind — exactly the conditions found on rooftops where wind accelerates over parapets and changes direction constantly. The coreless disc generator has a start torque below 1N·m, meaning the turbine begins generating at wind speeds where horizontal turbines are still stationary. Paired with solar and battery storage, Vertix extends generation into the evening hours when solar output has dropped to zero and wind along Pakistan’s coastal belt is at its strongest.
All Vertix turbines use NdFeB permanent magnet generators and aluminium alloy construction. Rated −40°C to 80°C. Full specifications on individual model pages.
| Start Wind | 2.8 m/s |
| Rated Wind | 12 m/s |
| Tower | 8 m / 300 kg |
| Certs | IEC 61400-2 / 61400-12 |
| Start Wind | 2.5 m/s |
| Rated Wind | 11 m/s |
| Tower | 10 m / 670 kg |
| Certs | IEC 61400-2 |
| Models | NE-50H / 100H / 200H |
| Start Wind | 2 m/s |
| Voltage | 12 / 24V |
Most people assume there is no useful wind outside Gharo and Jhimpir. This is wrong. Useful wind exists across much of the country — it just requires a turbine designed for the conditions found there, not a utility-scale horizontal-axis machine.
Karachi receives a consistent sea breeze from the Arabian Sea, strongest in the afternoon and evening hours. Coastal industrial areas — SITE, Korangi, Port Qasim — regularly see 5–9 m/s during peak hours. The Gharo–Keti Bandar corridor is Pakistan’s best-documented wind zone, but useful wind extends well into the city. Rooftop turbines on Karachi’s industrial buildings generate meaningfully in the late afternoon when solar output is already declining.
Punjab’s industrial belt experiences useful wind during the pre-monsoon season (April–June) and monsoon shoulder periods. Average speeds are lower — typically 3–5 m/s — but Vertix turbines cut in at 2–2.8 m/s, generating through conditions that would leave a conventional turbine stationary. Wind provides supplementary generation rather than a primary source in these zones, which is still valuable in a hybrid system.
Large industrial estates — particularly in Sindh and southern Punjab — experience stronger and more consistent wind than dense urban areas, simply because there are fewer obstructions. Ground-mount installations at factory sites with open exposure can deliver meaningful annual generation. Every Vertix recommendation is preceded by a site-specific wind resource assessment before any turbine is specified.
A wind turbine installed on a low-wind site is capital deployed for minimal return. Before recommending any Vertix model we assess the site. These are the questions we work through — use them to make an initial judgement before contacting us.
The performance difference between Vertix and competing turbines at low wind speeds comes down to the generator. Conventional turbines use iron-core generators that create magnetic drag — the turbine must overcome this resistance before generating. Vertix uses a coreless disc generator with start torque below 1N·m, beginning to generate at wind speeds where conventional units are still stationary.
The coreless structure eliminates vibration from iron-core cogging, reducing noise and mechanical stress. The result is a generator rated for 8× longer service life than conventional alternatives. At end of service life it can be rebuilt, not replaced.
Wind accelerates over rooftop parapets, providing useful generation even in moderate wind zones. GV-3KW or GVH-5KW mounted at parapet height, paired with rooftop solar and BESS. Generation continues after sunset when solar drops to zero.
Ground or elevated mounting on factory sites with consistent prevailing wind. Vertix complements large rooftop solar arrays, extending the hybrid system’s generation hours into evening peaks.
Every Vertix installation is designed as part of a hybrid architecture. Solar generates during daylight. Vertix generates when wind is available — including at night. BESS stores both. Controls dispatch optimally.
We do not recommend Vertix turbines without confirming your wind resource. A turbine installed on a low-wind site is capital deployed for minimal return. Every Vertix recommendation is preceded by a resource assessment.
Share your site location and load profile — our team will assess your wind resource and model a hybrid system for your site.
