April 2024

Sweeping Success: The Power of Maintenance and Cleaning in Solar Panel Generation/Performance

By |2024-04-02T12:18:34+05:30April 1st, 2024|

On 24/02/2024, EcoSoch's Solarcare team carried out its routine panel cleaning of one of our installations at Brigade Altamont. The capacity of the system is 100.8kWp with SolarEdge inverter technology: Description Specifications Capacity 100.8kWp Modules REC 400Wp - 252 modules Solar Inverter SolarEdge SE27.6k x 3 inverters System Type Grid Synchronous, net metered [...]

June 2023

SPD – Working, Construction and Which voltage to select (280V or 320V)?

By |2023-06-03T11:43:05+05:30June 3rd, 2023|

Contributed by: Suraj Kumar HS 280V Vs 320V AC SPD Introduction Surge Protection Devices (SPDs) are devices that are used to protect electrical equipment against transient over voltage (TOV). TOVs often come from one of three places: the grid side (like in a load-shedding situation or switching at the local substation), or the load [...]

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January 2023

Need for AC earth pits in solar installations?

By |2024-03-05T13:54:42+05:30January 24th, 2023|

For solar rooftop installations, it's often unnecessary to install new AC earth pits. Existing AC earth pits, if designed properly to handle fault current, are usually sufficient. In a solar setup, the overall AC current in the circuit doesn't increase. Before solar, if 10A flowed in the AC circuit, the entire 10A came from the [...]

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December 2021

Acceptable variation in Tilt angle of solar panels at a site

By |2021-12-11T11:08:01+05:30December 11th, 2021|

In certain cases, there would be a variation in the tilt angle of solar panels at a single site itself due to unevenness of the roof, solar arrays spread across multiple roofs, curvature of barriers, uneven cement patches and to avoid shadows from adjacent solar tables and walls. In such cases, customers can raise the [...]

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Inverter Clipping Losses – SolarEdge

By |2021-12-11T11:21:45+05:30December 11th, 2021|

We get questions from clients about oversizing of inverters and why we are connecting more panels to an inverter - like connecting 33 kWp of panels to a 27.6 kVA inverter. Isn't this inefficient or a wastage of solar panels? Let's say that we are using 380Wp panels. The panel is rated 380Wp under STC [...]

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October 2021

Can DC, AC and LA earth pits be connected together?

By |2021-10-17T13:09:51+05:30October 17th, 2021|

Technically Yes. All earthing pits should be bonded together so that there is equipotential bonding amongst them thus preventing back-feed from earth. However, some DISCOMs insist that DC earthing pits, AC earthing pits and LA pits should be kept separate. Please have a read of Legrand's Protection against Lightning Effects guide (Page 8) which [...]

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September 2021

Earthing practices at EcoSoch

By |2021-10-25T15:08:30+05:30September 27th, 2021|

With highly sensitive electrical and electronic components in solar installations, the need for protection of these costly equipment against fault and lightning current is very much necessary. Electrostatic discharge can damage sensitive electronic equipment and disturb the solar power supply. Any voltage difference between individual electronic units can destroy valuable equipment. In addition, noise [...]

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November 2020

UPVC Conduits Vs Pre-GI Cable Trays for Outdoor Use

By |2021-03-18T15:37:27+05:30November 17th, 2020|

At EcoSoch, we use UPVC conduits on the rooftop for a reason whether it be residential, apartment, commercial, industrial or institutional projects as shown below: However, the current norm of other EPC vendors is to use perforated Pre-GI cable trays to carry the DC cables for large projects as shown [...]

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July 2020

DC and AC voltage drop – Standards

By |2020-07-07T18:07:41+05:30July 7th, 2020|

DC Voltage Drop For Solar PV installations, the standard to follow would be from Australia called AS/NZS 5033:2014. It states, "For LV PV arrays under maximum load conditions (Imp), the voltage drop from the most remote module in the array to the input of the inverter should not exceed 3% of the Vmp voltage [...]

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June 2020

Corrosion in Pre-GI and Hot Dip Galvanized (HDG) Structures

By |2020-07-07T09:50:54+05:30June 29th, 2020|

Please have a read of the below article from Nuevosol which talks about corrosion in Pre-GI and Hot Dip Galvanised (HDG) Structures. Salient points are as below: Nuevosol article Pre-GI can be used as long as it is 550 GSM steel. The galvanization coating thickness is a maximum of 20 micron each side for [...]

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