5 ms·

$37.21 for a 100 watt panel with free shipping. I'm not sure if that is before or after 50% tariffs and/or the 10% "fentanyl" extra tariff that was announced a

by cma 6mo ago

$37.21 for a 100 watt panel with free shipping. I'm not sure if that is before or after 50% tariffs and/or the 10% "fentanyl" extra tariff that was announced a few days after Ross Ulbricht's pardon for running the world's largest opiates-by-mail operation.

dhosek 6mo ago
Heck even if that’s pre-tariff it’s cheap enough that it could be an impulse buy.
horsawlarway 6mo ago
You can buy brand new in bulk in the US for roughly the same $/watt. I bought 30 375w Canadian Solar panels 2 years ago and paid $0.41/watt (~$4536 for the whole package) My mounting equipment actually cost more than the panels (~$4600). And the permitting process cost nearly as much as the panels (permit cost + architectural drawing + structural engineer stamp + electrician stamp). It's crazy how cheap solar panels themselves are getting. They're going to win on the energy front - period. Especially now that battery tech actually seems to be moving again. I vividly remember one of my robotics professors in undergrad ranting about how frustrated he was with battery tech in ~2007, but LFP and sodium batteries are both pretty huge steps forward.
- tribaal 6mo ago
  Another data point: my entire system in Switzerland cost me 1.3CHF/Watt including a 20kWh battery and 5000 CHF of scaffolding costs (needed because of our local OSHA equivalent laws when installing panels on a tilted roof). It has become ridiculously cheap indeed.
  - engineer_22 6mo ago
    What's the cost of power in Confoederatio Helvetica?
    - rayhaanj 6mo ago
      Around 30 centiCHFs per KWh at the peak tariff: https://www.ewz.ch/en/private-customers/electricity/tariffs/overview-of-tariff.html https://www.ewz.ch/en/private-customers/electricity/tariffs/...
      - engineer_22 6mo ago
        What's your weather like? Is it year round sunny? Do you get a lot of snow in the winter?
        tribaal 5mo ago
        It's mostly similar to France. My house is in a valley (so reasonable snow) and some good solar irradiation year round. The roof being at a steep angle also means snow doesn't tend to accumulate much.
- engineer_22 6mo ago
  How much does power and grid delivery cost in Canada to make this economical? You're into this for $15,000 what is your payback period? Are there other ameliorating criteria for success?
  - testing22321 6mo ago
    I got $7.6kw installed in BC , Canada. Fully installed for $13k. Minus $5k grant, and the $8 is on a 10 year interest free loan. Power is 13c kWh, guranteed to go up min of 5% a year. So now instead of paying $1000 a year in power, I put that on the loan which will be gone in 7 years. The 20 years of $1000 a year free money. I’ve had the system almost two years, they’re noticeably cheaper now. System makes 7.2Mwh per calendar year in a tight valley where it snows a ton.
    - engineer_22 6mo ago
      Do you have to curtail your demand or purchase grid power during dark snowy winter months?
      - testing22321 6mo ago
        It’s a grid tie system, and we get one for one credit. So during the summer we rack up credits and have a negative bill (power company owes us money) then use it all up and a little more during winter.
        engineer_22 6mo ago
        Wow that's great, you're getting treated like royalty!
        testing22321 6mo ago
        Not at all. Basically everywhere had a one for one feed in tariff when residential solar was new in their area. Friends in Australia are still grandfathered into that (they got a 1.3kw system in like 1990) In Germany for a long time the law was three to one for green energy you generated and gave to the grid. Ie you put in 1kwh they credit you 3. Even today basically every location can grid tie and get a feed in tariff, the ratio just depends on how many people in your area got residential solar before you.
ck2 6mo ago
it's from a US warehouse so there are no tariffs (or they've already been paid/included)

by cma 6mo ago

dhosek 6mo ago

Heck even if that’s pre-tariff it’s cheap enough that it could be an impulse buy.

horsawlarway 6mo ago

You can buy brand new in bulk in the US for roughly the same $/watt. I bought 30 375w Canadian Solar panels 2 years ago and paid $0.41/watt (~$4536 for the whole package) My mounting equipment actually cost more than the panels (~$4600). And the permitting process cost nearly as much as the panels (permit cost + architectural drawing + structural engineer stamp + electrician stamp). It's crazy how cheap solar panels themselves are getting. They're going to win on the energy front - period. Especially now that battery tech actually seems to be moving again. I vividly remember one of my robotics professors in undergrad ranting about how frustrated he was with battery tech in ~2007, but LFP and sodium batteries are both pretty huge steps forward.

tribaal 6mo ago
Another data point: my entire system in Switzerland cost me 1.3CHF/Watt including a 20kWh battery and 5000 CHF of scaffolding costs (needed because of our local OSHA equivalent laws when installing panels on a tilted roof). It has become ridiculously cheap indeed.
- engineer_22 6mo ago
  What's the cost of power in Confoederatio Helvetica?
  - rayhaanj 6mo ago
    Around 30 centiCHFs per KWh at the peak tariff: https://www.ewz.ch/en/private-customers/electricity/tariffs/overview-of-tariff.html https://www.ewz.ch/en/private-customers/electricity/tariffs/...
    - engineer_22 6mo ago
      What's your weather like? Is it year round sunny? Do you get a lot of snow in the winter?
      - tribaal 5mo ago
        It's mostly similar to France. My house is in a valley (so reasonable snow) and some good solar irradiation year round. The roof being at a steep angle also means snow doesn't tend to accumulate much.
engineer_22 6mo ago
How much does power and grid delivery cost in Canada to make this economical? You're into this for $15,000 what is your payback period? Are there other ameliorating criteria for success?
- testing22321 6mo ago
  I got $7.6kw installed in BC , Canada. Fully installed for $13k. Minus $5k grant, and the $8 is on a 10 year interest free loan. Power is 13c kWh, guranteed to go up min of 5% a year. So now instead of paying $1000 a year in power, I put that on the loan which will be gone in 7 years. The 20 years of $1000 a year free money. I’ve had the system almost two years, they’re noticeably cheaper now. System makes 7.2Mwh per calendar year in a tight valley where it snows a ton.
  - engineer_22 6mo ago
    Do you have to curtail your demand or purchase grid power during dark snowy winter months?
    - testing22321 6mo ago
      It’s a grid tie system, and we get one for one credit. So during the summer we rack up credits and have a negative bill (power company owes us money) then use it all up and a little more during winter.
      - engineer_22 6mo ago
        Wow that's great, you're getting treated like royalty!
        testing22321 6mo ago
        Not at all. Basically everywhere had a one for one feed in tariff when residential solar was new in their area. Friends in Australia are still grandfathered into that (they got a 1.3kw system in like 1990) In Germany for a long time the law was three to one for green energy you generated and gave to the grid. Ie you put in 1kwh they credit you 3. Even today basically every location can grid tie and get a feed in tariff, the ratio just depends on how many people in your area got residential solar before you.

ck2 6mo ago

it's from a US warehouse so there are no tariffs (or they've already been paid/included)