Category — Remote Systems

New advances in small-scale Micro Grid power systems have led to the development of the Optimal Power Solutions Macro Hybrid System (“MHS”). This approach brings many advantages to the supply of high quality, reliable electric power in particular applications such as isolated areas, mission critical systems and sites at difficult locations. The Macro system is now recognised as an appropriate solution for utilities where interconnected micro grids can operate together or separately depending on load demands, fuel supply constraints or security prioritised circumstances.

The Macro Hybrid System is the ideal solution for large off-grid power systems incorporating solar photovoltaics and other renewable sources that aim to achieve substantial fuel savings and extended hours of zero diesel engine operation.

For more information on this product, please download our full brochure, available at:

http://www.optimal-power-solutions.com/home/downloads/OPS_Macro_System_rev1_Apr2011.pdf

Bharat Heavy Electricals Limited (BHEL) has been awarded by Lakshadweep Electricity Department a major contract for installation for a 1.1 MWp Solar Photovoltaic (SPV) Power Plants at Lakshadweep Island, along with the refurbishment of existing installations totalling 850 kWp. A total of ten islands will be involved in this project.

BHEL is one of the largest engineering and manufacturing enterprises that operates in India’s energy and infrastructure sectors. The company provides services to India’s power, railway, telecommunication and transmission markets. It is currently estimated that 70% of power generated in India is produced by BHEL-manufactured equipment.

BHEL has contracted OPS India to provide new power electronics equipment as well as to augment and refurbish the SPV Power Plants. OPSI will supply our proprietary technology Power Conditioning Units with SCADA systems & MPPT charge controllers to BHEL for Lakshadweep.

The scope of work for OPS India includes total project work for installation, system integration, commissioning and O & M of the SPV plants for a period of 5 years.

OPS India will also provide a remote monitoring system that will be integrate the individual inverters on the respective Islands. This will enable remote accessibility with special control for individual inverters as well as the integrated system. Our web based monitoring and control system is capable of data acquisition through both local and remote access points.

To view more images of this project, please click on one of the images below or visit the Lakshadweep Project page at our Flickr website here.

Optimal Power Solutions has recently completed upgrades to its software control at a privately-held island hybrid system in the Bahamas. OPS made various improvements in order to better support the islands unforeseen peak loads.

This included a new facility that enables separate diesel generators to charge a single battery bank simultaneously via the HPC power conditioning units. In addition, OPS also provided enhancements to its SCADA remote management software and improvements to the integration of the eight wind turbines.

We previously covered this project in an earlier article, Caribbean island lights up with OPS renewable energy technology.

Caribbean Project Photo Slideshow

Optimal Power Solutions has commissioned a unique hybrid power project in the Caribbean islands as of late April 2010.

Renewable energy is well positioned to address increasing energy supply concerns in the Caribbeans. Environmental concerns regarding diesel and fossil-fuel transportation have come to the forefront of political debate as the oil spill in the Gulf of Mexico continues to cause catastrophic damage. Furthermore, the landed cost of diesel is highly vulnerable to future price spikes and diesel is therefore a risky financial choice as the primary source of energy supply for off-grid requirements. Fortunately, the Caribbeans offer immense potential for new, off-grid renewable projects due to the plentiful solar and wind resource availability.

OPS is pleased to have provided the system integration for this hybrid renewable system that includes solar photovoltaics, wind turbines, diesel generators and proprietary OPS power conversion technology.

This project compromises 2 x 300 kW Hybrid Power Conditioning (HPC) inverters. Our HPC product provides a complete tecnological solution for off-grid renewable energy systems. This unit can operate in parallel with the generators to meet peak loads and features a flexible operating platform for integrating other balance of system components, in this case, the solar PV, wind-turbines and battery storage.

Renewable components of this system include 8 x 15 kW wind turbines and approximately 240 kWp of solar PV that utilise two large capacity OPS Maximum Power Point Tracker’s. In addition, the system utilizes 3 x 312 kVA diesel gensets and a 360 v battery bank rated at 6000 Ah, capable of providing 2.16 MWh of energy storage. The AC system sources are switched through a customised AC switching cabinet that is rated at 1.5 MW. In addition, OPS supplied a Station Control Module that incorporates local and remote access to the system.

To view more images of this project, please click on one of the images below or visit the Caribbeans Project page at our Flickr website here.

Optimal Power Solutions has been contracted for the supply of power conditioning units and system integration for three sites in the Kinabatangan District of Sabah, Malaysia.

Each site compromises a solar hybrid power system that is designed for the supply of electricity to three villages of KG Batu Darat/ Laut, Kg Kuamut and KG Kuamut Seberang. The total combined solar capacity of 430kW across the three villages is expected to reduce fuel consumption by a minimum of 50 per cent. Optimal Power Solutions will provide three proprietary inverters of a combined 710kW capacity. The inverters include 2 x 250kVA Hybrid Power Conditioner, 2 x 30kVA Hybrid Power Conditioner and 4 x 100kVA Grid Export Conditioner, (further HPC & GEC information is available on our products webpage or downloads section).

The sites are very remote and can only be accessed at times via river barges. The Kinabatangan floodplain is located on the east coast of Sabah, Borneo, it is considered of enormous environmental importance for wildlife and the local community as it is arguably the last forested, alluvial floodplain in Asia. Due to the remote location and delivery routes, the cost of landed diesel is high, averaging RM$8 to RM$9 per litre in recent years. It is estimated that the systems discounted payback period for the larger villages will be less than 10 years with scope for a shorter payback period should fuel prices escalate further.

Solar hybrid systems are a particularly viable option for remote area power supply. Optimal Power Solutions is pleased to offer a complete range of proprietary inverters with full service system integration and project development inclusive of remote system monitoring software packages.

For more information please visit our Products, Projects, or Services, webpage

The above map is courtesy of Google Maps 2010.

Optimal Power Solutions is the lead renewable energy technology provider for the system upgrade of the US Navy’s China Lakes testing and training facility.

This project site is located in the Superior Valley, U.S.A. Due to the remote nature of the site, the facility requires a self-contained electrical generating system that includes a large-scale photovoltaic system.

OPS is currently supplying the power conversion equipment and system integration for this system upgrade. The upgrade aims to optimize the energy output of the site’s existing PV modules (210kWp). The existing modules will not be replaced however the previous inverter will be de-commissioned.

Due to the limitations of the existing PV modules to operate at high voltages, OPS was required to design and implement a custom boost-mode MPPT charger. This newly designed boost mode charger will enable the best possible integration of the existing PV array.

This is the same US Navy testing and training facility where an OPS system was previously commissioned in early 2009. It is expected this system upgrade will be commissioned in mid-April 2010.

NEW DELHI: In a step forward, the Solar Mission under the National Action Plan on Climate Change got an in-principle nod from the PM Manmohan Singh, with a target of 20,000MW (20GW) solar power generated by 2020 being accepted.

The Solar Mission is one of the seven missions proposed under the National Action Plan on Climate Change which was unveiled last year, promising India’s efforts to tackle climate change at the domestic level. The Solar Mission provides a detailed road map demonstrative of India’s serious intent to become a global leader in Solar Power within the next two decades.

The plan covers both grid and off-grid solar energy generation and distribution. In the first stage, the draft envisages generating 1-1.5 GW of solar power by 2012, 6-7 GW by 2017 and 20 GW (installed) by 2020. It calls for using 40-50 million sq metres of surface area in domestic, industrial and commercial areas.

The government aims to achieve it by providing incentives to cut the cost of development and deployment of solar panels. The aim is bring down the cost of solar energy from Rs15 to Rs4-5/ kWh from Rs3.5kWh base 2009 and achieve parity with coal by 2030 (Rs2kWh). The plan is expected to help offer lighting to 3 million households by 2012.

Parliamentary members stated that “While keeping an ‘ambitious’ target the solar mission should be built within an ‘enabling framework’ emerging from international negotiations, It would be important to demand technological and financial support from the international community under the UN negotiations, for such a huge target for clean energies due to the uncertainty of the costs.”

The plan calls for setting up a statutory solar authority under the ministry of new & renewable energy. It will have three verticals _ finance, technology & tariff, special project. The body will particularly focus on installation of solar collectors in hospitals, hotels and government buildings.

‘‘The solar mission can be India’s response to the global climate change logjam. It will make India’s position stronger in the negotiations. If India can do so much unilaterally, imagine what India can achieve if financing and clean technology support from rich countries come through. It’s the right answer at the opportune time,’’ says Siddharth Pathak, climate & energy campaigner, Greenpeace India.

The solar energy industry in India has undoubtedly gained momentum and should be able to keep pace with the government’s aim of achieving 10% of the country’s total electricity requirements by 2012. India already possesses a balanced eco-system for the PV industry, a high-tech manufacturing base and skilled labour sufficient to make it a booming industry. Annual PV production has already reached over 300 MW, with about 85% being exported.

Key facts about India’s 20GW Solar Power plans

The $19 billion “National Solar Mission” plan spread over 30 years aims to scale up solar power generation from nothing at present to 20 GW by 2020. The plan has a “near term” target of 100 megawatts, and 100 GW by 2030, or 10-12 percent of total power generation capacity estimated for that year.

Once implemented, the project will ensure large-scale deployment of solar generated power for both grid connected as well as distributed and decentralized off-grid provision of commercial energy services.

India says it could cut about 42 million tonnes of carbon dioxide emissions with its new solar plan. An estimated 20 million solar lights are estimated to save 1 billion litres of kerosene per annum by 2020.
Solar-powered equipment and applications will be mandatory for hospitals, hotels and government buildings, and villages and small towns will be encouraged with micro financing.

The plan also outlines a system of paying households for any surplus power from solar panels fed back into the grid. The target would be to provide access to lighting for 3 million households by 2012.

Optimal Power Solutions is negotiating its first project application in South East Asia of our newly developed product, the Macro Hybrid Power Conditioner.

The Macro HPC is an energy optimized large-scale hybrid system. It offers high power renewable energy connected to an automated multiple engine control system (MGCS).  It has a facility to schedule specialized loads through the use of a Station Control Module (SCM).

The MGCS synchronizes various generator sets to operate at peak capacity in parallel, whilst the SCM communicates with the power producing components of the renewable energy station and the Hybrid Inverter Module.

The SCM also controls the Inverter Module at the external PV farm to ensure that all PV power being exported is managed in the event that the battery bank is fully charged and the village load is being met at the time. Controllable loads can be initiated to ensure no excess renewable energy is wasted.

The first application of this newly designed OPS product will be a 1MW power plant in East Malaysia. The Macro HPC platform provides for a scaleable capacity of up to 10MW, in solar photovoltaic increments of 100kW or 250kW.

Optimal Power Solutions envisages a high take-up in future of the Macro HPC in the following applications:

• Remote & Island Village Communities
• Large-Scale Communications Towers
• Health-Care Facilities
• Governmental & Educational Institutions
• Remote Infrastructure
• Off-Grid Airports

3 megawatt solar PV system to be fully online by late 2009.

Optimal Power Synergy India Pty Ptd has signed an agreement to provide all power conversion and integration work for a 3 MW grid connect Solar PV project to be installed in Karnataka, India.

Karnataka has severe power supply issues due to a reliance on hydroelectric power generation coupled with lower monsoonal rainfall over the last few years. Hydroelectric generation capacity has diminished due to low dam levels. In response the Indian Government is interested in megawatt-sized PV systems at various locations in the countryside to improve power supply to villages and rural areas.

The 3MW Karnataka project is now under construction and the first megawatt will be online by late September 2009. The remaining PV power supply will be completed by November 2009.

Optimal Power provides the latest update for the Kalabakan power system. Delivery to site in East Sabah, Malaysia has been completed. Final commissioning and software setup of the station controller and automation aspects of the main AC board was completed by OPS engineers in Kuala Lumpur.

The main distribution board as shown in the photographs is 3,000 Amp rated at 415 Volts AC. The system integrates 260 kW of solar PV, 3 diesel engines, remote monitoring with automated control. The project is being undertaken for the national Utility TNB in conjunction with local partners Eramaz Technology.

The system is due to be commisoned and handed over by the end of May. For more information on this project please contact us