太阳能(SoCal-SCE) --Solar System Step by Step
发表于 : 9月 15, 2022, 6:03 pm
===== Update in Dec. 2023, ONE Year after Solar System INSTALLED & connected to SCE ============
Update -- 2022.12月7.2kW太阳能接入SCE 开始用,刚好一年了,总发电~9900 kWh; 家里和EV用电应该是 ~~ 10,000 kWh.
全年12个付费周期,交给SCE $407 TOTAL, everything inclusive. 南加SCE, 正常情况下,没有太阳能,向SCE买电10MWh 的电要 $5000 吗? 所以过去12个月,可以省个~ $4000- 4500+ / year. 太阳能总投资 $15K (after 30% tax credit), 4年内收回成本。
注: EV-- Mustang Mach E 本来要买的,不计入成本。
======== BREAKING NEWS Dec.15, 2022: 加州NEM3.0通过==========
加州通过了 NEM3.0, 安装太阳能是否划算要认真考虑了!!
本网站的更详细讨论见下面:
https://www.newmitbbs.com/viewtopic.php?t=85150
****Updated on 12/06/2022---从询价到工程完工,前后3个月完全Step by Step 情况 **************************
1)2022.09月初某一天,COSTCO 看到Sunrun的伯克利小留在推Solar, 因为刚刚拿到电车,马上约了第二周的Appointment, 结果报价奇高 $5.26/W installed, 排除了这个选项。
2)2022.09月中某一天,在newMITbbs 生活版看到 EnergySage.com的信息,马上注册上交信息,很快拿到6家报价和方案, 包括Solar Optimum.
3)2022.09.30: 根据review, 决定选Solar Optimum, 8.8kW system. $2.88/W - all inclusive. $25,350 -30% tax credit, net $17,745 total.
4)2022.10.04: $500 deposit paid. (决定pay cash, not financing). 如何做rough sizing? 往下看-- 手把手教你 LOL.
5)2022.10.13:Site survey performed by Solar Optimum. 拜登visiting SoCal, 当天不能飞无人机,可能要补这部分工作 ~10 min video taping/picturing.
6)2022.10.15: Saturday. The technician came out to fly drone to finish 2nd part of site survey.
7)2022.10.25:Prelim Design finished for owner approval. 现有200A的电箱不需要升级,省钱!但是, 屋顶因为局部一层,还有众多vents, 屋顶面积不够放22 panels, 改成18块, 7.2kW system., 项目降低成 $21,456 ($2.98/W); 设计是4个groups/arrays. 额外收费 $700 (multi-array 的额外设备费用, 原来他们想要$1050). Now Total cost= $22156 ($3.07/W) installed; after 30% tax credit --->> FINAL COST $15510, or $2.15/W
8)2022.11.01 Detailed design completed, milestone #2 payment -- 30% of total cost. (Note: 我没有选择贷款,选择一次现金付清. 如果我选用贷款, 只需建成后20年每月付款 ~~$120 after tax credit)
9)2022.11.03 Both HOA & City Permit applications submitted.
9.1) 11.08: HOA permit approved.
9.2) 11.18: City Permit approved.
10) &11) Material/equipment delivery, Installation of PV panels and inverters.
** 2022.11.23: 材料送达,安装当天完成。
12) 2022.12.02: Passed Inspection by City.
13) 2022.12.06: SCE 2022.12.06: SCE "Permit to Operate" approved.
14) 自己根据Operation Instruction 合上几个开关 (PV breaker, AC disconnect lever, combiner box breakers etc), 就好了. 家庭太阳能发电系统接入SCE电网了。
15). 2022.12.22 Solar optimum/Enphase (电控部分的设备商和服务商)提供access portal, 建立账号, 就可以看到发电历史和实时发电情况了。
-----------------THE END-----------------
************PS1 -- 我可以Refer :) LOL.**************************************************
PS1 -- 我可以Refer :) LOL.
PS2 -- Costco的SunRun 排除. SUPER 贵! 给我 quote 5.6kW system 要 $29500 ($5.26/W) vs SolarOptimum 8.8kW $25,350 ($2.88/W) LOL.
--------9/15/22 -----Planning & Solar System Sizing Calc.--计算选用的参数根据当时的设备的specs当时的技术--------
背景: 南加州,买了电车,希望尽快安装Solar panel。自己的计算思路如下:
1. 现在全年用电 (不算电车):4800 kWh, avg 400 kWh per month.
2. 买入电车后,如果考虑以后可能2台电车,每年EV总里程est. 20K miles, EV平均3.5 miles/kWh, EV用电 5715 kWh annually
3. House +EV = 10,515 kWh, safety factor x 1.15, 每年需要12091 kWh. (过去3个月, 电价平均 0.32/kWh, 一年要$3870)
4. Per google, 安装1kW 太阳能,本地(location location -- SoCal) 每年发电1418 kWh (google result -2022 current technology), 年用电 12091 kWh/(n发电1418 kWh per kW installed) = 8.53 KW solar system size ---->> Round up to 22 panels x400 W = 8800 W system.
---- Quotes from EnergySage & Costco/Sunrun -----
Quote 1: Solar Optimum, 22 panels x400W = 8.8 kW system. $2.88/W installed; Panasonic panel, Enphase Energy Micro Inverter. 25 yr 保修(太阳能板子,Inverter, Labor). Financing rate 1.99% (with20% buy down), $108 per month after 12 months.
Quote 2: Better Earth: 21 panels x 360W= 7.56 kW system. $2.55/W installed; REC panels, SolarEdge Inverter with optimizer, 1.99% rate.
Quote 3: Sunrun/Costco: 16 panels x 365W= 5.84 kW system. $29654 Today ~ $5.07/W. Longi panels, 2.99% rate.
---- Questions in original post ------------
1. 目前倾向于直接排除SunRun, 选择Solar Optimum, 5.0/5.0 review. 项目开始到结束大概多久啊?
2. Tesla 的quote 大概多少 $/W ?
3. EnergySage上的Quote 有roof penetration 保险吗?
Update -- 2022.12月7.2kW太阳能接入SCE 开始用,刚好一年了,总发电~9900 kWh; 家里和EV用电应该是 ~~ 10,000 kWh.
全年12个付费周期,交给SCE $407 TOTAL, everything inclusive. 南加SCE, 正常情况下,没有太阳能,向SCE买电10MWh 的电要 $5000 吗? 所以过去12个月,可以省个~ $4000- 4500+ / year. 太阳能总投资 $15K (after 30% tax credit), 4年内收回成本。
注: EV-- Mustang Mach E 本来要买的,不计入成本。
======== BREAKING NEWS Dec.15, 2022: 加州NEM3.0通过==========
加州通过了 NEM3.0, 安装太阳能是否划算要认真考虑了!!
本网站的更详细讨论见下面:
https://www.newmitbbs.com/viewtopic.php?t=85150
****Updated on 12/06/2022---从询价到工程完工,前后3个月完全Step by Step 情况 **************************
1)2022.09月初某一天,COSTCO 看到Sunrun的伯克利小留在推Solar, 因为刚刚拿到电车,马上约了第二周的Appointment, 结果报价奇高 $5.26/W installed, 排除了这个选项。
2)2022.09月中某一天,在newMITbbs 生活版看到 EnergySage.com的信息,马上注册上交信息,很快拿到6家报价和方案, 包括Solar Optimum.
3)2022.09.30: 根据review, 决定选Solar Optimum, 8.8kW system. $2.88/W - all inclusive. $25,350 -30% tax credit, net $17,745 total.
4)2022.10.04: $500 deposit paid. (决定pay cash, not financing). 如何做rough sizing? 往下看-- 手把手教你 LOL.
5)2022.10.13:Site survey performed by Solar Optimum. 拜登visiting SoCal, 当天不能飞无人机,可能要补这部分工作 ~10 min video taping/picturing.
6)2022.10.15: Saturday. The technician came out to fly drone to finish 2nd part of site survey.
7)2022.10.25:Prelim Design finished for owner approval. 现有200A的电箱不需要升级,省钱!但是, 屋顶因为局部一层,还有众多vents, 屋顶面积不够放22 panels, 改成18块, 7.2kW system., 项目降低成 $21,456 ($2.98/W); 设计是4个groups/arrays. 额外收费 $700 (multi-array 的额外设备费用, 原来他们想要$1050). Now Total cost= $22156 ($3.07/W) installed; after 30% tax credit --->> FINAL COST $15510, or $2.15/W
8)2022.11.01 Detailed design completed, milestone #2 payment -- 30% of total cost. (Note: 我没有选择贷款,选择一次现金付清. 如果我选用贷款, 只需建成后20年每月付款 ~~$120 after tax credit)
9)2022.11.03 Both HOA & City Permit applications submitted.
9.1) 11.08: HOA permit approved.
9.2) 11.18: City Permit approved.
10) &11) Material/equipment delivery, Installation of PV panels and inverters.
** 2022.11.23: 材料送达,安装当天完成。
12) 2022.12.02: Passed Inspection by City.
13) 2022.12.06: SCE 2022.12.06: SCE "Permit to Operate" approved.
14) 自己根据Operation Instruction 合上几个开关 (PV breaker, AC disconnect lever, combiner box breakers etc), 就好了. 家庭太阳能发电系统接入SCE电网了。
15). 2022.12.22 Solar optimum/Enphase (电控部分的设备商和服务商)提供access portal, 建立账号, 就可以看到发电历史和实时发电情况了。
-----------------THE END-----------------
************PS1 -- 我可以Refer :) LOL.**************************************************
PS1 -- 我可以Refer :) LOL.
PS2 -- Costco的SunRun 排除. SUPER 贵! 给我 quote 5.6kW system 要 $29500 ($5.26/W) vs SolarOptimum 8.8kW $25,350 ($2.88/W) LOL.
--------9/15/22 -----Planning & Solar System Sizing Calc.--计算选用的参数根据当时的设备的specs当时的技术--------
背景: 南加州,买了电车,希望尽快安装Solar panel。自己的计算思路如下:
1. 现在全年用电 (不算电车):4800 kWh, avg 400 kWh per month.
2. 买入电车后,如果考虑以后可能2台电车,每年EV总里程est. 20K miles, EV平均3.5 miles/kWh, EV用电 5715 kWh annually
3. House +EV = 10,515 kWh, safety factor x 1.15, 每年需要12091 kWh. (过去3个月, 电价平均 0.32/kWh, 一年要$3870)
4. Per google, 安装1kW 太阳能,本地(location location -- SoCal) 每年发电1418 kWh (google result -2022 current technology), 年用电 12091 kWh/(n发电1418 kWh per kW installed) = 8.53 KW solar system size ---->> Round up to 22 panels x400 W = 8800 W system.
---- Quotes from EnergySage & Costco/Sunrun -----
Quote 1: Solar Optimum, 22 panels x400W = 8.8 kW system. $2.88/W installed; Panasonic panel, Enphase Energy Micro Inverter. 25 yr 保修(太阳能板子,Inverter, Labor). Financing rate 1.99% (with20% buy down), $108 per month after 12 months.
Quote 2: Better Earth: 21 panels x 360W= 7.56 kW system. $2.55/W installed; REC panels, SolarEdge Inverter with optimizer, 1.99% rate.
Quote 3: Sunrun/Costco: 16 panels x 365W= 5.84 kW system. $29654 Today ~ $5.07/W. Longi panels, 2.99% rate.
---- Questions in original post ------------
1. 目前倾向于直接排除SunRun, 选择Solar Optimum, 5.0/5.0 review. 项目开始到结束大概多久啊?
2. Tesla 的quote 大概多少 $/W ?
3. EnergySage上的Quote 有roof penetration 保险吗?