04/21/14

What’s A Power Saver?

Most people who have been searching the internet for ways to save power at home have probably come across a device known as a power saver 1200. This of course begs the question of what is a power saver 1200. Well the answer is simple.

A power saver 1200 is a device that can reduce one’s monthly electric bill by correcting inefficiencies caused by induction motors using its bank of capacitors. See, simple right?

Ok, here’s a more layman’s explanation:

A power saver contains a capacitor bank. A capacitor is a device that can hold an electrical charge similar to a battery. The difference is that a capacitor discharges (lets go of its charge) all at once, while a battery drips this charge out.

An inductive motor is basically a type of electric motor. Inductive motors are generally inefficient as they consume current at a different “frequency” than this current is provided. This causes it to draw more electricity than it actually uses. This draw is called an “inductive load”.

A power saver 1200 will collect this wasted electricity and store it briefly in its capacitors. It will then send this electricity back into the appliance where the electricity is actually used. This causes the motor to run normally while drawing less electricity (this is where your savings comes from)

Now, you may wonder whether or not you have any inductive motors working in your home. Well, A/C units and pool pumps use induction motors and they typically run for more time than other appliances and generate a big portion of your bill, so something that makes them more efficient is well worth it.

 

04/18/14

Headache-Free Device Makes Fresh Water with Solar Power

By Antonia Pasolini

 

An Italian designer has created an ingenious solution to the fresh water problem that many people in the developing world face. It’s called Eliodomestico, a ceramic solar still designed by Gabriele Diamanti as a way to produce fresh water with a product that could be made locally. For his ingenious, open-source design, Gabriele received a special mention at the Well-Tech Award 2012 and won the Core77 Design Awards 2012 in the social impact category.

The simple design is the true winner here. It consists of two ceramic parts stacked together. Inside the top piece is a black container where the salt water goes. The sun heats the container and turns the water to steam. Pressure starts to build and the steam is forced down a tube into a container in the other, lower part. Therein the steam will condense against the lid and the basin of the container will collect it.

The system can collect just over a gallon of fresh water per day and it costs US$50 to manufacture. Since it requires no electricity – only free, clean solar power – it is free to run. As many people in the developing world tend to carry water containers in their head, the bottom basin was designed to fit around a person’s head comfortably.

04/16/14

A plan for Chinese Solar

The Solar Energy Industries Association proposed a plan to solve the dispute between the United States and China over Chinese solar panels. For the solar industry association, to impose custom duties on Chinese solar PV can handicap the US and China’s relationship, therefore a solution is highly needed. The SEIA proposed to abolish custom duties on solar panel and to create a fund to help US manufacturers. This fund would be partly financed by China.

This topic triggers tensions between the two biggest economies of the world. Since it started, both countries are imposing tariffs on the other’s imports. The threat of a trade war pushed the Solar Energy Industries Association to work on an alternative solution as the existing one is not effective.

Polysilicon, solar cells’ main component, has seen its price fall from 57% since 2010 they are both fighting over market share. Starting July, China has established custom duties on US polysilicon products.

With SEIA proposal, tariffs on Chinese solar panels and US polysilicon imports would be suppressed. A fund financed by solar companies from China and the US would help American manufacturers to catch up a bit from Chinese. China’s solar manufacturers would also have to finance a Solar Development Institutefor the benefit of US manufacturers. This organization would also promote and encourage partnership between American and Chinese solar industry.

04/14/14

Educating the Public on Regulation and New Technology

By : Jason Makansi

 

We’ve got to get the word out to the public on the hows/why/whats of the electricity business. It is so poorly understood that individual ratepayers often have no clue what happens when they plug in their toasters. In my everyday interactions and in speaking to groups large and small, the public’s [mis]understanding of the industry usually revolves around several key things: rates, subsidies/renewable energy, and global warming. Over and over, people around the country ask me questions like:

If the technology’s there, why don’t we have more wind (or solar)power?
Why do we have to use so much coal when we could use renewable energy?
Why aren’t there smart meters installed everywhere?
Why don’t we have a smart grid…and, by the way, what is a smart grid, exactly?
Why are my rates going up so suddenly?
Why? Why? Why?

Well, one of the most important things I try to street is that, for the most part, our utilities live/work/play in a regulated environment — particularly at the transmission and distribution level. Even in deregulated states, the movement is reversing towards re-regulation of electricity. The business model of a regulated utility is to invest in something and be allowed a reasonable rate of return on that investment by the regulator, the public utility commission (PUC). For the most part, utilities don’t much care what they invest in, as long as they can be assured of a predictable rate of return.

So, if you don’t like coal, believe strongly in renewable energy, and want smart grids communicating with a smart meter in every home, start lobbying regulators to compel utilities to invest in these things. The utility has to have a regulated rate of return for its shareholders (just about everyone who owns a basic mutual fund or has a pension) and as long as the PUC allows the utilities a regulated rate of return on the investment in renewable energy, smart grids/meters, it will happen.

The problem with the utility industry today is that it is facing increasingly difficult problems from all sides–demand for CO2 controls, deteriorating infrastructure, rising costs due to increased international demand for raw materials, competition for skilled workers, shareholders demanding their dividend checks, PUC’s regulating every breath they take, and consumers who want cheap, reliable, electricity that’s always available at the flip of a switch. It’s a viscious circle of competing interests including the state PUC, the utility, and a generally disengaged consumer base…consumers who rarely pay attention to their electricity unless, of course, they’ve just experienced a loss of service or their rates are escalating abnormally.

But, it is precisely at this time of increasing challenges that consumers need to wake up and pay attention to that magical thing called electricity that lights their world at the flip of a switch. it is up to all of us to think about what we want, what we need, and what we are willing to pay for in terms of electricity. This is no time to point fingers and ask why not??? It is a time to come together, become informed and engaged in the debate about the direction of our energy future.