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Mid-Century house Energy upgrade, SunnyD in Palm Springs, CA
Darren's new house in Palm Springs California was built in 1952. It
was solidly constructed of masonry. Half of the house was insulated
during the 80s and 90s expansion. However the original north facing
outer wall has no added insulation. Best effiorts upgrading this
house yields approximately a surplus of 100kWh per month.
- 30 Canadian CS3K-310MS PV panels with Enphase IQ7 micro inverters,
total 9.3kW system
- Replaced gas furnace with Heat Pump HVAC: Carrier Infinity with
Zone control and WIFI Communication, Variable stages: 25%-100%
75 speeds 24 SEER 13 HSPF
- Replaced gas pool heater with Heat Pump Pool Heater:
Pentair Electric Heat Pump with Easy Touch and WIFI Control
- Replaced gas water heater with Heat Pump Water Heater:
Rheem Professional Prestige ProTerra Heat Pump Water Heater with
WIFI Control
- Added Whole house water leak detector with auto shutoff, WIFI enable:
FLO by Moen
- Added 4 efficent Ceiling Fans
- Replaced whole house water pipes from iron pipes to copper pipes.
- Installed Foam roof: 4"-5" of 2.7 to 3.0 lbs norminal density;
Resulting a R-value of 46 to 52.
- Replaced single pane glass with double panes glass windows and doors
- Replace whole house lighting to LED lights
- Install smart oulets
- Rewired the entire house's outlets with ground
- Insulated all hot water pipings
- Native plants
- Install 240V NEMA 14-50 outlet in garage for EV charging
- Add sub panel in garage with breakers to off load overloaded circuits
- Add 240V outlet for dryer
- Add 240V outlet for cooking range
- Outdoor light sensors and timers
- Energy monitor usage and production for the entire property
- Ring security monitors
Candace's Home Energy upgrade
Hong Kong Residential Roof Top Solar PV System
In the Spring of 2015, I decided to put a PV system on my sister's
roof in Hong Kong. I did not realize until after I started the
project that PV is not popular in Hong Kong. Hence, I have to deal
with convincing the local Utility CLP (China Light and Power), the
local housing authority, as well as to design and build the system.
It is a 3-phase system and I learn a lot from this project. Since
this is the first solar PV project that deploys micro inverters, I
also have to coordinate between Enphase and CLP to create a 50Hz grid
profile.
After 3 months of hard works, a 15.3kW PV system with Enphase micro
inverters was born. The wiring diagram can be viewed here; and here is the array layout.
System Specification:
Retrofit Darren's Home for Energy efficient
Turning Alex's Home to a Net Energy Production House
- 5.985kW Solar PV system with SolarEdge DC Optimizers
PV System layout can be viewed here
PV System wiring diagram can be viewed here
System Specification:
Turning Jenny's Home to a Net Energy Production House
- 9.90kW Solar PV system with SolarEdge DC Optimizers
PV System layout can be viewed here
PV System wiring diagram can be viewed here
System Specification:
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