Exploring the issues of sustainability and Renewable Energy

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Australian coal prospects dim as PM Modi spotlights solar

India’s newly elected Prime Minister, Narendra Modi, has started his first term in office with a promise that the power-starved nation will strongly focus on solar power.

Narendra Taneja, head of energy in Modi’s Bharatiya Janata Party said “We look upon solar as having the potential to completely transform the way we look at the energy space,” said, as the BJT come to power last Friday (May 16) in the biggest electoral win in three decades.

Modi’s proposed “saffron revolution” is a political promise that holds a lot of appeal, as well as massive economic opportunity. Now, as Prime Minister, growing renewable energy generation will remain one of Modi’s top priorities, according to Taneja, especially solar, with its potential to create many jobs and supply millions of households not connected to the grid.

It is a heavy blow to the coal industry which presumed it was the only power source capable of delivering electricity, despite India’s notorious infrastructure problems. For coal exporting nations like Australia, however – who have been forging ahead with the development of new mega mines and infrastructure in the belief that coal is the only solution to India’s booming energy needs – this news will not be welcome.

And as recently as January, leading investment bank HSBC warned that the market value of the coal assets owned by Australia’s biggest mining groups could be slashed by nearly half – or more than $US20 billion – due to constraints of the global “carbon budget;” a concept HSBC says is gaining traction, given the climate science, and the implementation of pollution control policies in the US and China.

A month earlier, in December, the International Energy Agency trimmed its five-year forecast of global coal use, warning that environmental constraints, financing issues, and the current cost of coal exports raised “concerns about the economic feasibility of projects in the Galilee Basin.”

Acknowledgement to Sophie Vorrath

May 21, 2014   Comments Off on Australian coal prospects dim as PM Modi spotlights solar

120 kW Smart Grid Factory Energy Optimisation in Japan

OPS is pleased to deliver a new PV rooftop project in Japan for  Kawasaki – Rikuso Co Ltd (located near Tokyo). The factory is a logistics control point and warehouse for manufactured items.

The PV Inverter battery system provides a continuous split phase  power supply to the main office in the factory during the daylight hours. At night load is controlled back to the  utility grid supply at 8pm and restated on renewables at 9am the next day. Under local regulations grid feed of the PV energy is not permitted.

The system is structured on 120 kW of PV array with different roof orientations. The energy storage is 480 kWh and Inverter is 60 kW.  The load is estimated at 20 to 50 kW. The Tokyo Electricity Commission charges a fixed rate of approx. 18 yen (about US$0.18) per unit plus a ‘basic charge’ of 1000 yen/month based on the peak kW recorded over a 12 month period.

This project will provide valuable information for further scale up in the Japanese smart grid market.


Energy Optimisation in Japan

April 3, 2014   Comments Off on 120 kW Smart Grid Factory Energy Optimisation in Japan

New Mini Grid at Bock Cay in the Bahama’s

Mini Grid Systems

Optimal Power is pleased to be delivering on a new Mini grid system in the Bahama’s. The system includes 500 kW of solar PV and a mini grid control system including high power MPPT’s, station control and monitoring.

The system will use energy storage to reduce diesel system operation overnight and maximise the renewable operation in the daytime The system is due to be commissioned in the first quarter of calendar year 2014.



January 17, 2014   Comments Off on New Mini Grid at Bock Cay in the Bahama’s

Growth in renewables set to outgrow all other energy options

Renewables will continue to be the fastest-growing energy source, supplying a bigger share of the world’s needs than nuclear by 2025, according to BP Plc. (BP/)

Sources such as wind and solar will increase at an average of 6.4 percent a year to 2035, compared with natural gas, the fastest-growing fossil fuel, at 1.9 percent, BP said today in its Energy Outlook 2035. Renewables will produce 14 percent of the world’s power by that year from 5 percent in 2012, bolstered by growth from the poorer nations outside the Organization for Economic Cooperation and Development.



January 17, 2014   Comments Off on Growth in renewables set to outgrow all other energy options

Optimal continues evaluation of Sodium Ion and Li Ion Systems

Optimal Power Solutions is continuing its ongoing testing program of new advanced energy storage systems. We have taken delivery of the next generation Na Ion from Aquion Inc, USA and characterising this battery under the OPS operating regimes.

Sodium Ion Battery

The Na Ion electrolyte is water-based and uses a chemical mix consisting of abundantly-found materials such as sodium and manganese . Aquion is commercialising this technology on the basis of the following benefits:

• High DoD and long cycle life – greater than 4000 cycles at 90% DoD.
• High Ambient temperature operation – up to 50ºC without loss of capacity.
• No detrimental effects in PSoC operation mode.
• High Energy efficiency – 70% – 90% round trip efficiency.
• Low cost – expected to be very competitive in mass production.
• Safe – non-toxic materials are used and the battery is 100% recyclable.

The work is ongoing in conjunction with tests on various Li Ion technologies and advanced lead acid batteries.

February 25, 2013   Comments Off on Optimal continues evaluation of Sodium Ion and Li Ion Systems

Optimal Presents at Homer Workshop, Mexico

Optimal Power Solutions and Homer Energy invites you to join us in Cancun on November 8-9 for our inaugural Microgrid Deployment Workshop, an integral part of this year’s ISES Solar World Congress 2013.

Microgrids for off-grid and island scenarios face unique challenges, and changing market drivers are opening up new opportunities for these hybrid energy systems. Homer Energy have carefully developed the Workshop to be of real-world value in helping stakeholders design their systems for success. We are excited about the range of experts who will be discussing the latest and greatest business strategies, technology applications, and results from the field, and am confident you will come away with fresh insights into achieving positive, concrete results. The case studies and training sessions on Day 2 will help us dive even deeper into how best to use the HOMER modeling software in specific situations.

February 25, 2013   Comments Off on Optimal Presents at Homer Workshop, Mexico

Providing Renewable Solutions for Prisons in India

Optimal Power Solutions in India, Optimal Power Synergy India (OPSI) has successfully partnered in a project in Kerala, India to supply 52 prisons with Power Conditioner Units (PCU). A total of 230kW already installed in Poojapura Central Prison and a further 670kW to be installed in six other locations. OPSI have been chosen as a key supplier in the cooperation which is lead by the Bureau of Police Research and Development (Ministry of Home Affairs), Department of Prisons, Kerala, Kerala State Electronics Development Corporation and Rajasthan Electronics and Instruments.

The initiative derived from the government’s emphasis around the need for Renewable Power, other Eco-Friendly Systems and a reformist approach to prison models. This includes reducing the dependency on expensive and scarce Grid Power whilst also eliminating the use of firewood in cooking. Also, it is to reduce the consumption of LPG cylinders and to ensure uninterrupted power supply within the prison complex. Ridding the usage of firewood will decrease the CO2 emissions and lower the potential risk of a fire hazard. The Governments initiative to reduce LPG cyclinders stems from the idea of eliminating a major safety risk as this has been the case in many occurrences in prior years. Also, the exponential rise in the cost of cylinders increases daily operational costs therefore not proving to be a viable long term option. In the long run, using diesel generators as back-up power supplies is not a feasible alternative as the cost of diesel fuel is constantly on the rise.

At the heart of the system, OPS PCU’s have been installed to function as a Power Inverter, control centre  and a remote monitoring system. It provides data logs within 10 minute intervals of solar photovoltaic (SPV), battery and grid generation and consumption. The data is automatically stored and can be manually and remotely accessed anytime.

The PCU’s will help monitor and arrange power usage accordingly by providing different loads with the most efficient energy source. By using the solar PV with batteries or grid the Prison’s enjoy an uninterrupted source of power. Another economic function is the enabling of high volume food production. The initiative has also given birth to a sound scheme whereby prisoners produce chappati’s and  other daily meals for external sales. Having enough power to run the machine, the Prison has now begun to not only sufficiently feed the prisoners but to also sell in the broader community. The machine on average produces 50,000 chappati’s and 8000 packets of curry a day.

OPS would like to tahnk all the individuals involved in such an environmentally beneficial project and especially the team at OPSI for the planning and implementation.

Kerala Prison photos are available at our website Flickr site

For Indian enquiries, please contact Optimal Power Synergy India (OPS India)

Kerala Prison Solar Power System


February 14, 2013   1 Comment

OPS provides system engineering for Minigrid with Lithium Titanate Storage System

Optimal Power Solutions (OPS) is pleased to announce that it is in cooperation with Mitsubishi Electric Asia Pte Ltd for the provision of an advanced power quality and system stability plant. The system is to be installed at Niue and will be part of nearly 400kW of solar PV operating on a diesel power station.

OPS will provide a 200kW advanced power conditioner with controls to operate with the Lithium Titanate battery from Toshiba, Japan. The system will manage short term grid fluctuations as well as contributing to a higher penetration of renewables into the island grid supply. The system will include control of other grid connected PV inverters on the island to ensure the operation of the total system is not compromised.

The system is under development and testing and will be installed in the next three months. All enquiries to sales@optimal-power-solutions.com




February 9, 2013   1 Comment

Optimal Power provides Micro Grid System Technology to Nukutepipi Atoll

Two new hotel projects on Bora Bora (Leeward Islands) and on the atoll of Nukutepipi in the Tuamotu archipelago have received French Polynesia’s approval. Optimal Power has been chosen by Sunzil Groupes Total and EDF, the principal contractor, to provide key renewable energy systems components for the project.

“The investor is a French-Canadian businessman who has created in 20 years a company specialized in culture and entertainment with a staff of more than 3,000 working in several countries”, the Council of ministers press release states. “This company would like to extend its activities and has chosen French Polynesia to launch these original hotel projects”.



The site of Nukutepipi is close to the atoll of Anuanuraro. The Investor has acquired  the necessary land and relates to a total amount of 600 xpf million. The key focus is the construction of a unique holiday resort making it possible to accomodate from 25 to 40 people.  The development of this project rests on an ecological approach, cultural and ludic and being a first in a crenel of top-of-the-range hotel trade.

Optimal Power Solutions is supplying 250 kW of power conversion and control equipment to enable stage of the project to proceed. The system will be installed and commissioned within 2013.


February 8, 2013   Comments Off on Optimal Power provides Micro Grid System Technology to Nukutepipi Atoll

OPS Implements a Distributed Generation Mini Grid in Bihar, India

Optimal Power Solutions has completed the installation of a Mini Grid Solar PV battery system at the Chief Ministers complex in Bihar India. The Mini Grid is scaleable but is initially installed with five (5) sets of 25 kW GSC distributed systems controlled from a central mini scada system.

The GSC product from OPS utilises solar PV and batteries to provide power security, maximum use of green energy and a controlled system from a central position. These Mini Grids can be part of a larger cluster that can operate independently of the main grid. The link below provides for a capsule view of the project.

Mini Grid BREDA

February 7, 2013   Comments Off on OPS Implements a Distributed Generation Mini Grid in Bihar, India