My own solar system Installing solar panels at my house
gt;gt; MURVEIT: Good morning and welcome. Thisis a presentation about solar energy basically from the point of view of people who had itinstalled and then also from the point of view of one of the people working in the industry.My name is Hy Murveit. I’m a research scientist here at Google and I had the experience ofbasically paying somebody and having them install solar panels in my house. But, thenthat’s the typical story that most people who have solar panels INDISTINCT would do.David Talkin is going to come on in about 25 minutes and he did it himself. And he putit in a house in the country without any access, normal access to electricity and that’s howhe’s providing electricity to his house. So
a totally different do it yourself experienceDavid’s going to talk to you about. And then we’re going to finish up with Kurt who isactually the guy I worked with to have solar panels installed at my house and as he justsaid, in addition to working at Horizon, that does the solar installations, he was a foundingmember of the Global Warming and Energy Committee for the Loma Prieta Chapter of the SierraClub and he’s been working to fight global warming for the last five years. He’s reallycommitted to this kind of technology. So, with that introduction here we go. You know,you can take a look right here at the top of my house. And the solar panels that I havethat are working now and producing electricity.
So why would anybody here want to do solarelectricity? You know, for obviously for the good looks, right? You know, makes your houselook terrific, makes a statement to the world that you care. You can save money by producingyour own electricity. And of course, you might have to produce electricity somehow if you’relike David and you don’t have access to the solar panels. Here’s a picture of the frontof my house. You know, it is a concern. I mean, some people say what the heck is this?There’s a recent new story about some guy who is prevented by his homeowners’ associationto do solar panels. Here’s the front of my house. In my opinion, it looks terrific. Butwe actually we did have an issue where webecause
of the amount of shade I had around my house,we didn’t have room to put all the solar panels I would like and we actually had to put somepanels in the rear and the rear is north facing. Yeah, north facing so, you really couldn’tput panels on. You know, in the northern hemisphere you have to face south or things like that.And so there it’s a little more obtrusive, right? Because it had to be racked up to facethe sun a little bit more. But anyway here we can see an idea what these things looklike. Before I get into the meat of the talk, I wanted to talk just a little terminology.Many of you guys, maybe, most of you guys understand this. But it’s good to get it outof the way just in case. The difference between
power and energy and what you buy from PGEor whoever your electric utility is. You know, power is measured in wattage. You know, youcan think of it as, as how hard something is pushing. You’re, you know, you’re tryingto lift a weight and what kind of force you have to put on that weight. Energy is powertimes time. You know, you’re pushing it for an hour. That’s the amount of energy you haveto put out, that kind of thing. That’s the difference in power and energy. Power is measuredin watts. Energy is measured in; you know, like watt hours, so kilowatthours. And soyou may buy from PGE in the course of a month, you know, 600, 700, 800 kWh of electricitya month and they’ll charge you whatever, 10,
20, 30 cents per kilowatthour. And that’sthe deal basically you have with yourwell, have with your utility. And so, as I saidthat kilowatthours is the number I’ll be mentioning a lot during the talk. And thisis how the PGE charges you. Right now, not everybody, not Google but most residentialcustomers could get use this E1 rate schedule for electricity. And you can see, they’llcharge you about 11 cents per kilowatthour, add to your additional usage but then as youuse more and more, yourthe charge per kilowatthour goes up. So the marginal charge could be quitehigh if you use a lot of electricity. Before I started this project, my baseline usagewas 380 kWh and I discovered I was using 1300