Hi, new to the whole solar thing, and anytime I'm unfamiliar I usually try to find forums to read and post to. I never really considered solar for our house, mostly because we've been here for about 3 years and don't expect to be here longer than another 5 years or so. Just got done talking to some people from SunRun and their set up/deal seems to be pretty solid. Just wanted some feedback from you all if it looks like a good plan. FYI I live in California SF Bay Area.
First when I talked to them, they got my PG&E smart meter number and were able to look up my last year's usage and found I would definitely qualify/benefit from their panels and program. Over the past year we averaged about 850 kwh per month. PG&E's billing tiers are $0.122 for the first 319kwh, $0.139 for the next 95khw, $0.30 for the next 223kwh, and $0.342 for what we use above that. So each month we pay around $0.13 per kwh for the first 415 kwh, and about $0.32 per kwh for the next 350-600 kwh depending on the month.
SunRun is going to install the solar panels on our house free of charge, however the installation fee varies from house to house. Ours happened to be free, others can be up to $1k or $2k. It sounded like it depends on the roof (i.e. installation labor), shade, direction of the house, etc. If it's a tough roof, then you have to pay extra to cover the extra installation costs. If it has shade or isn't facing the right direction, they won't make as much off the panels (is what they were implying).
What we then get is a solar panel array that they predict will produce 4,626 kwh per year (averages to 385 kwh per month). They bill us at a rate of $0.285 per kwh on a monthly basis, for the entire predicted 4,626 kwh they expect to produce in the year. If the panel produces less than what they expect, they will refund the diffrence. If the panel produces more than what they expect, we won't be charged anything in addition to the 4,626 kwh annually. The rate of $0.285 per kwh will increase annually by 2.9%. The contract term is for 20 years, and after that I can either have them remove the panels at no charge, or purchase them at fair market value (assessed by a 3rd party appraiser). If I sell the house, then I can transfer the contract over, subject to the new owner passing their credit check.
So, what do you think? Right off the bat it looks like we will save around 4.5 cents per kwh for any power supplied by the solar unit since it would cut off the top tier rates from PG&E. It's not a huge savings, about $200 per year. If the installation was going to cost us $1k-$2k, then I wouldn't go for it. But since installation is free, the savings are immediate. And any rate hikes by PG&E above 2.9% per year increase the savings. Based on historical data, I expect their rate hikes to be much more than that.
The only thing I am not clear on, and am not sure how to calculate is this:
During the day, when we aren't home and aren't using a lot of power the solar panels will be making a lot of power. These do not use any batteries, but instead feed the power back into the grid. Then when we are using more power or at night, that power would come back from the grid via PG&E at no charge. I'm assuming PG&E tiers are looked at on a monthly basis, and not daily or time of day right? If we are purchasing power from SunRun via the solar panel at $0.285 per kwh during the day when usage may be low, and that power is being fed back into the grid, are we somehow going to get screwed if it comes out that night at some low rate?
First when I talked to them, they got my PG&E smart meter number and were able to look up my last year's usage and found I would definitely qualify/benefit from their panels and program. Over the past year we averaged about 850 kwh per month. PG&E's billing tiers are $0.122 for the first 319kwh, $0.139 for the next 95khw, $0.30 for the next 223kwh, and $0.342 for what we use above that. So each month we pay around $0.13 per kwh for the first 415 kwh, and about $0.32 per kwh for the next 350-600 kwh depending on the month.
SunRun is going to install the solar panels on our house free of charge, however the installation fee varies from house to house. Ours happened to be free, others can be up to $1k or $2k. It sounded like it depends on the roof (i.e. installation labor), shade, direction of the house, etc. If it's a tough roof, then you have to pay extra to cover the extra installation costs. If it has shade or isn't facing the right direction, they won't make as much off the panels (is what they were implying).
What we then get is a solar panel array that they predict will produce 4,626 kwh per year (averages to 385 kwh per month). They bill us at a rate of $0.285 per kwh on a monthly basis, for the entire predicted 4,626 kwh they expect to produce in the year. If the panel produces less than what they expect, they will refund the diffrence. If the panel produces more than what they expect, we won't be charged anything in addition to the 4,626 kwh annually. The rate of $0.285 per kwh will increase annually by 2.9%. The contract term is for 20 years, and after that I can either have them remove the panels at no charge, or purchase them at fair market value (assessed by a 3rd party appraiser). If I sell the house, then I can transfer the contract over, subject to the new owner passing their credit check.
So, what do you think? Right off the bat it looks like we will save around 4.5 cents per kwh for any power supplied by the solar unit since it would cut off the top tier rates from PG&E. It's not a huge savings, about $200 per year. If the installation was going to cost us $1k-$2k, then I wouldn't go for it. But since installation is free, the savings are immediate. And any rate hikes by PG&E above 2.9% per year increase the savings. Based on historical data, I expect their rate hikes to be much more than that.
The only thing I am not clear on, and am not sure how to calculate is this:
During the day, when we aren't home and aren't using a lot of power the solar panels will be making a lot of power. These do not use any batteries, but instead feed the power back into the grid. Then when we are using more power or at night, that power would come back from the grid via PG&E at no charge. I'm assuming PG&E tiers are looked at on a monthly basis, and not daily or time of day right? If we are purchasing power from SunRun via the solar panel at $0.285 per kwh during the day when usage may be low, and that power is being fed back into the grid, are we somehow going to get screwed if it comes out that night at some low rate?
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