Technologies
Solar Power Technology
We provide customized solutions for designing different types of rooftop Solar system in different directions for Residential, Commercial, Industrial, Institutes, and Hospitals. Based on the site conditions it can be Solar On-Grid, Off-Grid, Hybrid or Heat Pump based System.
Solar Roof Top (SRT)
Solar rooftop system is a reliable, easy-to-install system with a lifespan of 25 years using existing roof space to generate clean energy helping you save on electricity charges. A typical solar system consists of solar panels (which absorb sunlight), inverter (which converts DC into AC), mounting structure (that hold the panels in place), batteries (to store the extra power generated), grid box and balance of systems (wires, nuts etc.).
There are three ways your solar systems can work- by being connected to the grid, by being independent of the grid, or through a combination of both. Thus, there are three types of systems:
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On-Grid system
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Off-grid system
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Hybrid system
On-Grid system
On-Grid Solar solution also known as ‘grid-tied’, will generate energy only when it’s connected to the electrical grid. This saves your Electric Bills from the day of deployment.
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The grid-tied inverter will receive Direct Current (DC) from the solar panels and convert it to Alternating Current (AC) to power the house appliances. But, it needs the grid to replicate the wave, frequency, and voltage of the current flowing into your house. This is why it only works when power from the electrical grid is available.
In case of a power outage or unavailability of grid power, the solar system will stop working entirely.
Primary Components: Solar Panel Array, Inverters, Meters, and Utility grid
Suitable for: Residential, commercial and industrial properties where grid power is readily available.
Hybrid System
Hybrid systems is connected to the utility grid and has an attached battery to store excess energy. When the electrical power from the grid is available, the solar inverter will work as an on-grid inverter. When power fails, it will work like an off-grid inverter.
The chief benefit of the hybrid system is the availability of power in all situations. During the daytime, the panels will first power the home devices, while using the excess energy to charge the battery. In case there is a surplus, it is sent back to the utility grid.
The stored power can be used during the night when sunlight is not available. Moreover, when the generation is low and the battery is fully discharged, the power from the grid can work as a backup.
Off-Grid System
The off-grid systems are fully independent of the grid as they are equipped with battery backup. The inverter charges the battery and runs the home appliances during the daytime. At night time or during power outages, the stored power can be used.
Off-Grid systems allow you to choose whether the solar panels charge the battery first or power the house.
This type of solar installation can benefit remote or rural areas that experience frequent power cuts, but get sunlight all year round.
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However, there are some disadvantages. When the panels aren’t as efficient due to cloud cover, rain or shade, etc. and the battery backup runs out, there is no power. For this reason, people generally install the off-grid system along their standard electricity connection to the grid.
Lithium Ion Battery Storage Technology
Hybrid Systems with Lithium ION Batteries
A hybrid solar system combines the benefits of off-grid solar Systems and has Grid Power also available alongside. It uses a hybrid solar inverter. That can charge the batteries through the solar panels and the grid power. And sharing of charging to the batteries is done through t Hybrid Solar Inverter. This hybrid system allows to use solar power to charge the battery. This inverter can power all kinds of appliances in home or office environment, including motor type appliances such as refrigerator and air condi􀆟oner or Heating Load.
Using solar alone, many average households and buildings can easily cover 50% or more of their electricity needs. Without a battery, this can even be increased to 75% or higher by changing habits and using simple timers or ‘smart’ controls to turn on high-consumption appliances during the day to be powered directly by your solar. This includes things like electric hot water systems, heating/cooling systems, pumps, dishwashers, dryers, and even cooking using ovens or slow roasters. After maximising self-consumption, a battery can enable you to become almost entirely energy-independent. By almost, we mean you can generally cover 100% of your average daily electricity requirements using solar and an appropriately sized battery, but there will always be times during poor weather when you cannot generate or store enough energy to cover your daily requirement.
Energy Storage Systems (ESS)
The Energy Storage System (ESS), or Battery Energy Storage System (BESS) with Lithium-ion Battery, is a Capacity/Heavy load UPS with rechargeable Lithium battery system that stores energy from the electric grid or any renewable energy source and returns that energy when needed.
The primary component of an ESS is a LiFEPO4-based battery. ESS with high-powered lithium-ion batteries offer an uninterrupted power supply with reduced charging time and higher efficiency. Battery ESS comes with Pure Sinewave technology.
Lithium Inbuilt ESS (Energy Storage System) is available from 0.5 to 500 KVA
Energy Storage Systems (ESS) Vs Diesel Generator (DG)
Diesel Generator vs Battery Energy Storage Systems is an important comparison to do. You can see diesel sets everywhere, whether you visit shopping center's, residential communities, or office buildings. However, this practice of getting power through Diesel generators in case of power failure is fast becoming a thing of the past. This is because these DG sets pollute our environment and emit irritating sounds.
Moreover the Cost per unit of Electricity from a DG Genset is about Rs 30-40 per unit as compared to Rs 5-8 per unit from an ESS.
Energy Automation Technology
Smart Distribution and Control Systems
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We can provide smart power distribution control panels with automation products like PLC, HMI and Scada along with their special Busbar power distribution products. This is based on Industry 4.0- compatible, smart Cloud-based solutions to provide IOT features for “Any time Anywhere” supervisory and control features.
IEC 60364-8-1 is part of the IEC 60364 series of standards and enhances Parts 1 to 7 with the introduction of requirements and recommendations to design the electrical installation which provides the best compromise between the required level of service and safety, and the lowest electrical consumption.
JK Green Technologies offers the total low voltage power distribution control system by studying the automation requirements of the customer and proposing an efficient, cost effective solution. Our team provides programming, engineering, training and documentation services as part of the total deliverables. Features of Smart Distribution Solutions includes:
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IEC 61439 standards; and end-to-end solutions for power distribution & control, automation and Cloud-based energy management.
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Safe and easy termination of various power sources
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Automation & control for intelligent Power Distribution and Control to suit the villa’s specific needs
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Intelligent supervision and alarm systems for the entire electrical system of the villa
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Intelligent solar energy management with battery management
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IoT Interface possible (alarm & notification through sms) and Cloud connectivity
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Easy integration with existing home automation systems like KNX, Crestron, etc.
Solar DG Synchronization
DG PV Controller ensures that the solar inverters generate the power as per the change in connected load in case of no grid. In other words, the total demanded load gets smartly distributed between Solar and DG in such way that the DG runs at the minimum possible load and solar will fulfill the remaining load demand. Because the solar power generation is being altered as per the load, the problem of damage to DG is automatically taken care off.
On-Grid inverters require reference voltage from the grid. However, one can use a diesel generator to provide this reference in the absence of the grid. But there are some stipulations.
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Unlike grids, you cannot add your surplus solar energy into the generator because it is not built to receive power. Back-feeding energy in a generator can not only damage the device but also pose a fire risk.
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For optimum functioning and maximum fuel savings, a generator has to run up to at least 30% of its capacity. For example, if your Diesel generator has a capacity of 100kW, then it has to power a minimum load capacity of 30kW.
This is where a DG-PV Synchronizer comes in!
This smart device communicates both with the Diesel generator and solar inverter to power your PV system even during blackouts.
The synchronizer will make sure that generator runs up to 30% of its capacity. Once that requirement is fulfilled, it will instruct the PV system to start generation.
Moreover, if the solar system produces excess power, the device will limit production and ensure that no electricity is being fed to the DG. This is why the DG PV Synchronizer is also called a zero export device.
Example:
If DG Capacity is 100kW and your demand is also 100kW. The DG PV device will ensure 30 kW demand is met through DG and the rest 70 kW through solar panels.
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Central Hot Water Technologies
Air Source Heat Pumps (ASHPs)
Heat pumps are generally more energy efficient than traditional heating and cooling systems because they use electricity to move heat rather than create it. This means that they can provide the same amount of heat using less energy, which can result in lower energy bills.
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Air source heat pumps use ambient air from outside a building as a heat source or a heat sink, heat pumps work similarly to refrigerators: Ambient air moves over a coil in the outdoor unit to create a heat exchange. An indoor unit acts as a condenser or evaporator, delivering hot or cold air to the building’s interior.
In prior decades, heat pumps were less efficient in extremely cold temperatures, but modern air source heat pumps have virtually eliminated this drawback and will keep your space cozy and comfortable through the coldest winters. Cold climate air source heat pumps offer 100% efficiency at temperatures as low as -15°C and offer reliable operation at up to -25°C.
Solar Wall Heating
If you need heating during a portion of the year solar air heating can be a inexpensive and sustainable way to meet or supplement your heating needs.
Sunlight enters the heater and is absorbed by a special metal panel. An optimized thermal exchange system uses heat captured by the absorber to heat incoming air and then delivers the air to the use space. With the PV Fan Kit, the heater uses a PV panel to operate the circulation fan, and is controlled automatically with a thermostat and temperature switch.
Solar walls are a technology used to passively heat a building. Solar walls are one way to achieve energy efficient building design.
Insulation Technologies
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Thermal Insulation is an effort / method/application to, Stop heat / cold ingress from outside. Maintains controlled temperature for longer periods.
Exterior Insulation Finishing Systems (EIFS)
Exterior Insulation Finishing Systems (EIFS) and External Thermal Insulation Composite Systems (ETICS) are cutting-edge construction technologies that have transformed the building industry. These thermal insulation systems provide energy-efficient, cost-effective, and sustainable solutions that cater to various building requirements. JK GreenTech explores the ins and outs of EIFS and ETICS, emphasizing their advantages and applications in contemporary construction projects.
