Victron Energy Battery Monitor

victron energy battery monitor philsolar philippines

The Battery Balancer equalizes the state of charge of two series connected 12V batteries, or of several parallel strings of series connected batteries.

Available exclusively in the Philippines from PhilSolar – Php4,459.

Contact us for inquiries or email

When the charge voltage of a 24V battery system increases to more than 27V, the Battery Balancer will turn on and compare the voltage over the two series connected batteries. The Battery Balancer will draw a current of up to 1A from the battery (or parallel connected batteries) with the highest voltage. The resulting charge current differential will ensure that all batteries will converge to the same state of charge.

If needed, several balancers can be paralleled.
A 48V battery bank can be balanced with three Battery Balancers.

Victron BMW 700 Battery Monitor

victron bmv 700 battery monitor philippines solar power

The BMV-700 is our newest high precision battery monitor. The essential function of a battery monitor is to calculate ampere hours consumed and the state of charge of a battery. Ampere hours consumed are calculated by integrating the current flowing in or out of the battery.

Available only from Philsolar – P11,662. Please contact us for inquiries. Or email

How to connect the BMV 700 Battery Monitor

Product Details

Battery ‘fuel gauge’, time-to-go indicator, and much more.

  • The remaining battery capacity depends on the ampere-hours consumed, discharge current, temperature and the age of the battery.
  • Complex software algorithms are needed to take all these variables into account. Next to the basic display options, such as voltage, current and ampere-hours consumed, the BMV-700 series also displays state of charge, time to go, and power consumption in Watts.
  • The BMV-702 features an additional input which can be programmed to measure the voltage (of a second battery), temperature or midpoint voltage (see below).
  • Easy to install All electrical connections are to the quick connect PCB on the current shunt. The shunt connects to the monitor with a standard RJ12 telephone cable. Included: RJ 12 cable (10 m) and battery cable with fuse (2 m); no other components needed.
  • Also included are a separate front bezel for a square or round display appearance; a securing ring for the rear mounting and screws for the front mounting.
  • Easy to program. A quick install menu and a detailed setup menu with scrolling texts assists the user when going through the various settings. Please consult the manual for details.

perovskite solar panels

The general rule when developing a new kind of solar technology is to expect progress to be slow. Take silicon solar cells, the most ubiquitous and recognizable form of photovoltaic generations today. When silicon panels were first built in the early 1950s, they could only turn about 6 percent of the light that hit them into electricity. More than 30 years later, that number had inched up to 20 percent, and today—30 years after that—they regularly perform in the mid 20s.

So when, in 2017, a new material jumped from 3.8 percent to 22.7 percent efficiency after less than 8 years of development, it got people’s attention.

“This was the first time we really didn’t know much about the material, and we were still able to make really efficient solar cells,” says Joe Berry, who works on solar cells at the National Renewable Energy Lab in Golden, Colorado. And that efficiency will only continue to improve as scientists learn more about the new material, Berry explains. “My expectation is that it will be faster than anything that’s happened before.”

The new material is called perovskite, after a naturally occurring mineral found abundantly throughout the Earth’s crust. Perovskite photovoltaics are made out of a different material with a similar crystal structure, which gives them semiconductor properties. They are sometimes referred to as “hybrid perovskite cells” because they exhibit characteristics of various existing photovoltaics.

“They’re like the Reese’s peanut butter cup of solar cells,” says Dan Schwartz, director of the University of Washington Clean Energy Institute, which runs a special facility for companies to develop new solar and battery technologies. “They bring some of the best parts of each, and some of the challenges.”

First, the best parts: Unlike typical solar panels where silicon must be smelted in high-temperature furnaces and then carved into perfect wafers and soldered together, perovskites can be printed like ink, which means they take much less energy to manufacture. The perovskite structure is also less rigid than silicon, so they can be made into flexible, thin-film panels and installed on office building windows, vehicles, electronics, or even clothing. Other kinds of thin-film solar cells have been around for awhile, but they haven’t shows the kind of performance and rapid improvement that perovskite films achieve. The theoretical maximum efficiency for perovskite is 33 percent—at the current rate of improvement, they could be getting close within decade.

But back to the challenges. For perovskites, the big hurdle has been their volatility. Perovskite’s crystal structure is prone to degrading, especially in the presence of oxygen or moisture. A few years ago, perovskite crystals only lasted a few hours before losing their effectiveness; today, materials in the lab are tested for about six weeks at a time. One potential fix is in the way perovskites are “packaged,” or protected from exposure to the air.

Another barrier is economic. The market for solar is already set up to favor silicon photovoltaics, an industry that has had more than 30 years to fine-tune its tech and trim its margins. Competing directly with traditional silicon solar panels may not be the way that perovskite and other new solar materials make it into the market. One promising application of perovskite is in combination with other solar cells, layered up like a photovoltaic cake. Since sunlight is composed of many different wavelengths, it turns out that it is much more efficient to convert specific wavelengths with targeted photovoltaic cells — say, one cell for the blue-green end of the spectrum and one for the red end. These combination or “multi-junction” cells have already hit efficiencies above 40 percent—twice that of a traditional solar panel on the market today.

“The most important thing to getting this technology to the market is being very open to unique use cases,” says Paul Meissner, CEO of Silicon Valley-based startup Energy Everywhere, one of a handful of new companies trying to develop perovskite, along with other unproven technologies. “It’s more than simply, how do we lower the cost per watt. It’s how do we reconceive energy?”

Meissner believes perovskite is one of a few technologies with the ability to redesign our energy system from the ground up. Right now, solar power generation only makes upabout 2 percent of the global power supply. To get that number higher will require vast amounts of cheap solar cells—and lots of novel places to put them, not just utility-scale fields of panels. With technology like perovskite, our buildings, roads, and vehicles could all be harvesting some of that solar power.

When that happens, Meissner says, we’ll have to shift from thinking of energy as flowing from producers—companies with massive, centralized power plants—to the rest of us. Instead we’ll need what Meissner thinks of as the “internet of energy,” a democratized, decentralized electrical system where everyone can produce, use and trade renewable energy. One startup in Brooklyn is experimenting with this kind of energy trading already, where neighbors buy and sell their own solar power from one another; elsewhere, microgrids are test-driving the software needed to shuffle energy around a complex network of supply and demand as seamlessly as possible.

“The goal is to have solar everywhere,” says Dan Schwartz. And at the moment, perovskite offers the most promising path to a world where installing solar can be as cheap and easy and automatic, Schwartz says, as rolling “Tyvex onto the side of a house.”

floating solar power farm Rizal Philippines

MANILA – Sustainable energy firm Winnergy Holdings Corp  said it has inaugurated its pilot floating solar power farm in Baras, Rizal, intended to supply the town with free and clean energy.

The 10kWp project, designed to last for 25 years, utilizes solar panels on top of water to generate enough energy to power the Kasarinlan Park in Baras, Winnergy President Janina Bonoan told ABS-CBN News. 

A connecting station was also built allowing residents to use the power generated for charging gadgets, powering sound systems and lighting up the river, she said.

“The purpose of undertaking the pilot is to demonstrate the technical feasibility of floating solar technology in the country and, more specifically, on Laguna Lake, Bonoan said. “The pilot also forms part and paves the way for the development of a much larger and commercially-viable project, also being developed by Winnergy,” she added.

Compared to traditional solar power facilities, floating farms are “technically more efficient” since no agricultural forest lands are disrupted.

It also reduces water evaporation and the proliferation of algae so marine life can flourish, Bonoan said, adding that the surrounding water makes the panels produce more energy. 

As an archipelago with inland and offshore bodies of water, the Philippines has a huge potential for floating solar farms, she said. 

Bonoan said this technology could also make use of lakes created by abandoned open-pit mining by deploying solar panels on top of it.

Meanwhile, conglomerates such as the Aboitiz Group, Ayala Group and San Miguel Corp also have interests in renewables. 

A short movie on the installation of a Victron Energy installation into a tiny demo house.

The Victron EasySolar Inverter / Charger is the all-in-one solar power solution

The EasySolar combines a MPPT Solar Charge Controller, an inverter/charger and AC distribution in one enclosure. The product is easy to install, with a minimum of wiring.

EasySolar takes power solutions one stage further; by combining an Ultra-fast BlueSolar charge controller (MPPT), an inverter/charger and AC distribution all in one enclosure. With an extensive reduction in wiring. EasySolar provides ease of use combined with a maximum return on investment.

12 / 24 / 48 Volt


  • 1 x EasySolar 24V 1600VA
  • 2 x Lithium battery 12,8v
  • 1 x Color Control GX
  • BMV-700 Battery Monitor

fossil fuels 2020

‘Turning to renewables for new power generation is not simply an environmentally conscious decision, it is now – overwhelmingly – a smart economic one’

Renewable energy will be cheaper than fossil fuels in two years, according to a new report.

Experts predict that investment in green infrastructure projects will lead to decreases in the cost of energy for consumers.

Continuous technological improvements have led to a rapid fall in the cost of renewable energy in recent years, meaning some forms can already comfortably compete with fossil fuels.

The report suggests this trend will continue, and that by 2020 “all the renewable power generation technologies that are now in commercial use are expected to fall within the fossil fuel-fired cost range”.

Of those technologies, most will either be at the lower end of the cost range or actually undercutting fossil fuels.

“This new dynamic signals a significant shift in the energy paradigm,” said Adnan Amin, director-general of the International Renewable Energy Agency (IREA), which published the report.

“Turning to renewables for new power generation is not simply an environmentally conscious decision, it is now – overwhelmingly – a smart economic one.”

The report looked specifically at the relative cost of new energy projects being commissioned.

As renewable energy becomes cheaper, consumers will benefit from investment in green infrastructure.

“If the stuff you’re building to generate electricity costs less, the end effect of that is having to pay less for the electricity that comes from it,” Jonathan Marshall, energy analyst at the Energy and Climate Intelligence Unit (ECIU) told The Independent.

“The cheaper you install it, the better it is for everyone.”

The current cost for fossil fuel power generation ranges from around 4p to 12p per kilowatt hour across G20 countries.

By 2020, IREA predicted renewables will cost between 2p and 7p, with the best onshore windand solar photovoltaic projects expected to deliver electricity by 2p or less next year.

Other methods of producing renewable energy, such as offshore wind farms and solar thermal energy, are not yet as competitive as fossil fuels.

However, the results of recent renewable power auctions for projects to be commissioned in the coming years suggest these forms too are due to drop in price.

Auctions provide a useful means of predicting the future cost of electricity.

“These cost declines across technologies are unprecedented and representative of the degree to which renewable energy is disrupting the global energy system,” said Mr Amin.

solar power philippines

Philippine facilities occupy 10 slots in Southeast Asia’s top 25 operational solar power plants, and electricity produced from this technology is expected to triple in four years, according to Dutch firm Solarplaza.

The Rotterdam-based consultancy said in a report that grid-connected solar power capacity in the Philippines was expected to more than triple from 903 megawatts currently to 3 gigawatts by 2022.

Rivaling the Philippines is Thailand with 15 solar facilities in the list. The remaining two are located in Malaysia and Cambodia.

No. 1 in Solarplaza’s list is 132.5-MW Cadiz solar power plant in Negros Occidental. Owned by the Equis Fund Group, this went online in 2016 and is the biggest in Southeast Asia.

Other Philippine solar plants listed by Solarplaza are the 80-MW San Carlos Solar Energy plant (ranked 8th); 63-MW Solar Philippines plant in Calatagan, Batangas (9th) ; 59-MW Toledo project of Citicore Power in Cebu (10th), and 59-MW San Carlos Sun Power plant in Negros Occidental (11th).

There are also the 50-MW plant of Sulu Electric Power and Light in Leyte (12th); 50-MW plant of Syntegra Solar and Conergy in Tarlac (13th); 45-MW plant of San Carlos Solar Energy in San Carlos City (14th); 40-MW plant of Majestics energy Corp. and Mother Co. in Cavite (16th); and 22-MW plant of Mabalacat Solar Philippines in Pampanga.

“The Philippines has enjoyed large growth in PV (photovoltaic) installations in the past few years, with more than 881 MW of newly added capacity installed since 2014,” Solarplaza said.

“This was mainly the result of the introduction of the country’s initial feed-in-tariff (FiT) of $0.23 per kilowatt-hour in 2014 and its subsequent revision to $0.17 per kWh in 2017,” the group added.

In an earlier report, Solarplaza put the Philippines at No. 5 among developing countries in Asia in terms of the use of solar photovoltaic systems for electricity generation.

Solar Power Is Burning Bright

UNITED NATIONS — Solar panels are everywhere: perched on thatched roofs in rural Kenya, helping Indian farmers pump groundwater for their fields, and powering United States military bases.

Solar power accounted for more than a third of all electricity generated from energy sources that came online in 2017, a larger share than any other new source, the United Nations Environment Program said in a report issued Thursday.And solar power is becoming much more affordable. The cost of electricity from large-scale solar projects has dropped by 72 percent since 2009, according to the study.

But even as solar, along with its renewable energy cousins — like wind, biomass and geothermal power — expands, it still accounts for barely 12 percent of all the electricity that the world consumes. The greatest share still comes from fossil fuels like coal, and more coal-fired power plants continue to be built, contributing to the greenhouse gas emissions that have warmed the planet to dangerous levels.

“This shows where we are heading,” said Nils Stieglitz, a professor at the Frankfurt School of Finance & Management, which produced the report along with Bloomberg New Energy Finance.

“The fact that renewables altogether are still far from providing the majority of electricity means that we still have a long way to go.”

The world leader in investing in renewables, by far, is China. The country accounted for nearly half of all renewable energy investments worldwide, pumping $86.5 billion into solar energy alone in 2017 in what the report described as “an extraordinary solar boom.”

China has cut back significantly on coal at home, though it has continued to fund and build coal-fired power plants abroad. One of the most closely watched is a proposed plant on the coast of Kenya, near the ancient island town of Lamu, a Unesco world heritage site.

The United States also plays a leading role in developing solar power. It is historically the largest emitter of greenhouse gases, though, and its investments in renewables went down slightly in 2017, according to the report, to $40.5 billion.

That decline coincides with President Trump’s first year in office, a steady rollback in environmental protections and the announced pullout of the United States from the Paris climate agreement. Few countries are even close to meeting the targets they set under the Paris agreement, according to independent analyses.

European investment in renewables fell in 2017, according to the report, in large part, its authors said, because of Britain, which has moved to end subsidies for wind and solar projects. 

That pointed to a looming challenge for the renewables industry: whether it can grow without government subsidies.

“Many projects will have to sink or swim without any government-backed price support,” the report said.

Renewables grew most significantly in 2017 where the demand for electricity also grew. The report found that developing economies accounted for 63 percent of global investment in renewable energy in 2017, up from 54 percent the year before. All told, 157 gigawatts of renewable power came online in 2017, more than double the 70 gigawatts generated from new fossil fuel sources.

The United Nations secretary general, António Guterres, has called climate change the biggest threat to humanity.

philippines top in asia solar power

The Philippines ranked No. 1 among developing countries in Asia in terms of the use of solar photovoltaic systems for electricity generation, according to a Dutch consultancy firm.

Rotterdam-based Solarplaza also ranked the Philippines fifth worldwide, following Chile, South Africa, Brazil and Thailand.

“The country (Philippines) is still relatively young when it comes to solar development, but was able to get seven active projects ranked in the top 50 list,” Solarplaza research analyst Marco Dorothal said in a report.

Dorothal was referring to Solarplaza’s top 50 solar PV projects in emerging markets.

He noted that the biggest operational project in the Philippines was currently the 132.5-megawatt Cadiz solar power plant developed by Helios Solar Energy Corp., a joint venture between Thailand-based Soleq Solar Co. and Gregorio Araneta Inc.

“The commissioning of this plant solidifies the solar market in the Philippines as being capable of handling such large-scale utility projects,” Dorothal said.

Solarplaza also noted that homegrown firm Solar Philippines last March started building a 150-MW solar plant in Tarlac, making it the largest solar power project so far for the country.

Solar Philippines has also opened the country’s first PV module factory in Batangas.

As of June 2017, Solarplaza pegs the Philippines’ solar power installed capacity at 900 MW.

“The developments in the market are promising, but it still needs to be seen how much this will benefit the country as Solar Philippines aims to produce PV modules for the US and European markets,” Dorothal said.

Further, Solarplaza said that while the Philippines was going through some policy changes, the solar market had been getting much support from the government.

“Two new operating projects [that made it to Solarplaza’s Top 50 list] have led the Philippines to increase its capacity with 110 MW compared to what was previously reported,” Dorothal said.

“The country also has a major project still in the pipeline that could once again increase the [installed] MW capacity of the Philippines in the Top 50 list,” he added.

According to the International Energy Agency, solar power is turning into the cheapest source of new electricity generation capacity in many countries, especially in Asia.

“Solar is forging ahead in global power markets as it becomes the cheapest source of electricity generation in many places, including China and India,” IEA executive director Fatih Birol said in a statement.

The IEA expects that, over the next 25 years, the world’s growing energy needs are met first by renewables and natural gas as fast-declining costs turn solar power into the cheapest source of new electricity generation.

Solar PV systems are set to lead new generating capacity, mainly driven by the technology’s adoption in China and India.

5 ways to engage employees in energy savings

Here’s a low-cost way businesses can lower their energy bills: Get employees to chip in.

Simple steps such as turning off lights when rooms are unoccupied, or turning off and unplugging office equipment such as computers, printers and copiers at night can help a business save hundreds of dollars annually on their energy bills. Yet, many employees don’t do it.

The reasons vary. Some people simply aren’t programmed to think about energy conservation and thus forget to, say, turn off lights when they leave rooms. Others don’t see personal value in taking time to unplug equipment. It only takes a couple minutes to turn off and unplug a computer, yet that’s a minute or two they figure can be better spent doing something else (and besides, they’re not paying the energy bills). Some might even believe their employer wants them to leave the lights and equipment on.

So, then, how do you motivate them to make energy conservation part of their workday? Here are five strategies for getting employees engaged in energy savings:

1. Educate employees.

A big reason many people don’t take conscious effort to save energy is they don’t realize the full financial and environmental benefits. Employers can change this by providing employees with information. Managers might send emails with factoids on energy savings (such as, turning off a printer at night saves the equivalent of 1,500 photocopies.) Some businesses even host lunch seminars to help employees. (You can find some information on the cost of running office equipment here.)

2. Form a team.

Some of the most effective workplace campaigns come not from managers, but other employees. Some companies start “green teams” made up of employees who encourage their colleagues to be more environmentally conscious. Such team could also tackle energy conservation and find ways to educate and motivate their colleagues to save energy.

3. Constant reminders.

For many people, not turning things off is habit, and habits are hard to change. Putting signs in key places around the office, such as by the printer or by the doors, reminding people to turn off lights or turn off their computers can make a big difference. And of course, managers should be energy-saving role models: employees will only pitch in if the boss walks the walk.

4. Rewards.

Businesses have shown that offering employees some financial incentive for eco-conscious moves, such as buying a hybrid vehicle or taking public transportation to work, can pay off. Companies could motivate employees to save energy by, say, giving gift cards to employees who do the most to save energy or come up with a workplace strategy for doing so.

5. Make it fun.

There’s growing recognition that the most successful approaches to make people voluntarily participate in environmentally conscious activities is to make them fun, positive and interesting. At a workplace, this might mean hosting an employee competition or producing a funny video about ways employees can save energy.