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Sat08292015

Hong Kong’s policy on environment-friendly commercial vehicles to tighten

Hong Kong’s policy on environment-friendly commercial vehicles to tighten

Hong Kong’s Environmental Protection Department will be tightening its qualifyin...

Philippines’ new wind farms add 303 MW to country’s power supply

Philippines’ new wind farms add 303 MW to country’s power supply

Two new wind farms in the Philippines have added 303 megawatts of clean energy t...

Geneva talks require “business unusual” approach – W.W.F.

Geneva talks require “business unusual” approach – W.W.F.

A “business unusual” approach is needed in the Geneva Talks to successfully deli...

New battery uses old batteries for greener energy storage

New battery uses old batteries for greener energy storage

Energizer has developed the world’s first high-performance battery made with rec...

Global warming to bring more devastating weather patterns

Global warming to bring more devastating weather patterns

The United Nations World Meteorological Organization confirmed that global warmi...

Jamaica to get 36.3 MW wind farm by 2016

Jamaica to get 36.3 MW wind farm by 2016

A 36.3 megawatt wind farm in Jamaica has received $62.7 million in funding from ...

A.D.B. provides Thailand with $85 million to develop wind power plant

A.D.B. provides Thailand with $85 million to develop wind power plant

The Asian Development Bank will be providing a company in Thailand loans to deve...

Business

Georgia taking leadership role in developing solar power

Georgia taking leadership role in developing solar power

Tuesday, 17 February 2015

The state of Georgia is emerging as a leader among the 50 states in promoting and implementing the use of solar energy, in part because of both busine...

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Technology

Penn State develops CPV system for rooftops

Penn State develops CPV system for rooftops

Tuesday, 10 February 2015

Researchers at Penn State have developed a concentrating photovoltaic system that is small enough and light enough to be mounted on a building’s roof....

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Politics

New draft text for climate agreement in Geneva reached

New draft text for climate agreement in Geneva reached

Monday, 16 February 2015

A new climate change draft text has been reached during the one-week United Nations-facilitated Geneva talks, leading to a binding treaty that is expe...

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Living Green

Wall-to-floor eco-friendly interior design

Wall-to-floor eco-friendly interior design

Tuesday, 17 February 2015

The materials you surround yourself with—from flooring and window coverings to furniture and accessories—have a great impact on the health of your hom...

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Renewables

Vestas supplies Poland, U.K. with turbines

Vestas supplies Poland, U.K. with turbines

Tuesday, 17 February 2015

Wind turbine manufacturer Vestas has announced that they have secured orders this week for two projects in Poland and the United Kingdom. The orders c...

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Low-Carbon

PG&E plans ambitious E.V. charger roll-out in California

PG&E plans ambitious E.V. charger roll-out in California

Tuesday, 17 February 2015

An estimated 25,000 electric vehicle chargers could be deployed in California by Pacific Gas and Electric Company. PG&E is seeking permission from Cal...

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Opinion

Unsustainable urban life: What's next?

Unsustainable urban life: What's next?

Wednesday, 11 June 2014

Nutrition plays a critical role in everyone’s chance at a better future. Hunger, said Benjamin Franklin once, is the best pickle. Some say “pickle”...

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Company which makes PV panel boosters gets $18 million investment


A California-based company which makes electronics that can improve how solar panels convert sunlight into energy by as much as 20 percent raised $18 million in its fourth financing round as it expands manufacturing and international sales.

Tigo Energy makes power optimizers about the size of a computer modem which are installed on the back of each solar panel in an array. A single device, called a maximizer management unit, calculates the optimal performance of the solar array and "tunes" each panel to achieve it.

Proceeds from the series D could support Tigo's current partnerships with companies that have agreed to install its device into their solar products.

In October, the company announced that Trina Solar, the fourth largest solar panel company worldwide, Hanwha Solar and Upsolar will offer Tigo-optimized solar panels, broadening the company's reach in the market more quickly. The system has versions for utility, commercial and residential solar installations.

The current round brought the company's total venture capital funding to just over $50 million. The round was led by Bessemer Venture Partners and joined by all existing investors including Inventec Appliances, Clal, Matrix Partners and OVP Venture Partners.

"Tigo Energy has a winning solution that has attracted many of the world's largest PV suppliers," said Lucinda Stewart, managing director at OVP. "Tigo Energy's technology helps customers of solar installations earn the most out of their investment, and we're pleased to continue to support the company's strong growth."

Power optimizer

In a typical solar array, panels are connected together in a series to form groups wired to the inverter - converting direct current to usable alternating current. Though this set-up helps in making installation easier, the disadvantage is that weak-performing panels can drag down the power production of the array.

Micro-inverter systems have been introduced as an alternative to central inverters by installing a small, efficient inverter on each panel. These devices also can optimize solar panels, but not as closely as power optimizers, according to Tigo.

The company said the Energy Maximizer uses algorithms and software based on real-time conditions to accurately compute the adjustments in each panel. Micro-inverters are said to base calculations on averages. (Oliver M. Bayani)



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