Los Angeles County · LADWP
Solar Panel Installation in Chatsworth, CA
Chatsworth sits in a very high fire hazard severity zone, so rapid-shutdown compliance and roof setback spacing are non-negotiable. We design to those clearances up front rather than redlining at inspection.
We are based in Northridge, 4 miles away, and we design Chatsworth systems around Los Angeles Department of Water and Power’s actual rate structure rather than a national average. Permits go through City of Los Angeles LADBS. Roofs here are typically tile and composition shingle, which determines the mounting hardware we quote.
Chatsworth at a glance
- Electric utility
- LADWP
- Los Angeles Department of Water and Power
- Peak sun hours
- 5.8 hrs/day
- Annual daily average
- Permitting authority
- City of Los Angeles LADBS
- Los Angeles County
- Export credit
- ~$0.24/kWh
- LADWP net energy metering
- SGIP battery rebate
- Not available
- Municipal utility territory
- From our shop
- 4 miles
- Northridge, CA
A typical Chatsworth project
What a $300 bill looks like after
Modeled on LADWP’s approximate $0.27 per kWh and 5.8 peak sun hours a day in Chatsworth. Your own numbers will differ — this is the shape of the answer, not a quote.
- System size
- 7.9 kW
- ~18 panels
- Annual production
- 13,413 kWh
- after standard derating
- Annual savings
- $3,573
- at today's rates
- Simple payback
- 11.4 yrs
- $107,494 over 25 years
LADWP in plain language
As a municipal utility, LADWP sets its own rules and still credits exports far closer to retail than NEM 3.0 does. The trade-off: LADWP customers are not eligible for SGIP battery rebates, and the permitting queue runs longer than the county's.
You buy at
$0.33
peak, 4–9pm
You sell at
$0.24
exported surplus
That narrow gap is why solar alone still performs well in Chatsworth. A battery here earns its keep through outage protection rather than rate arbitrage, and we will tell you honestly which one you are buying.
Run your own numbers
Pre-set for Chatsworth
Already loaded with LADWP rates and 5.8 peak sun hours. Move the slider to your bill.
Step 1
Step 2
Who bills you?
Step 3
Your estimate
A Chatsworth system
System size
8.4 kW
~19 panels
Saved per year
$3,772
at today's rates
Estimated cost
$42,277
solar + storage, installed
Payback
11.2 yrs
$114,329 over 25 yrs
A different calculation. LADWP is a municipal utility, so it sets its own rules and still credits exports near retail — about $0.24 per kilowatt-hour. Solar alone performs well here. A battery is worth buying for outage protection rather than for rate arbitrage, and LADWP customers are not eligible for SGIP.
Show the assumptions
Usage derived from $320/mo at LADWP’s ~$0.27/kWh blended rate, giving 14,222 kWh a year.
Production at 5.8 peak sun hours a day with a 0.80 derate for inverter, wiring, soiling and heat losses: 14,158 kWh a year.
Self-consumption assumed at 88% of production; the remainder is exported at $0.24/kWh.
25-year figure compounds utility rates at 4.5% a year and degrades panel output 0.5% a year, net of system cost. Planning estimate only, not a quote.
Also in Chatsworth
More than panels
Neighborhoods we cover in Chatsworth
Porter Ranch border · Stoney Point · Twin Lakes · and everywhere in between.
Chatsworth questions
Answered with local numbers
Specific to Chatsworth, LADWP, and City of Los Angeles LADBS.
How much does solar cost in Chatsworth?
A typical Chatsworth home paying around $300 a month to LADWP needs roughly a 7.9 kW system, which lands near $25,344 installed before storage. Adding the 13.5 kWh battery we would normally pair with it brings the project to about $40,869. Roof type matters here: tile and composition shingle is what we mostly see in Chatsworth, and that affects mounting hardware and labor.
Is solar worth it in Chatsworth with LADWP?
As a municipal utility, LADWP sets its own rules and still credits exports far closer to retail than NEM 3.0 does. The trade-off: LADWP customers are not eligible for SGIP battery rebates, and the permitting queue runs longer than the county's. At 5.8 peak sun hours a day, a 7.9 kW array in Chatsworth produces roughly 13,413 kWh a year. Against LADWP's approximate $0.27 per kWh, that is around $3,573 of annual value, putting simple payback near 11.4 years.
Who issues solar permits in Chatsworth?
Permits for Chatsworth go through City of Los Angeles LADBS, and interconnection is handled separately by Los Angeles Department of Water and Power. Those are two different clocks and they do not run in parallel by default. We file both and chase the corrections, which is usually where projects stall when homeowners manage it themselves.
Do you install batteries in Chatsworth?
Yes. Note that Chatsworth is served by Los Angeles Department of Water and Power, a municipal utility, so SGIP rebates are not available — that program is funded by investor-owned utility ratepayers. LADWP still credits exports near retail at roughly $0.24 per kWh, so in Chatsworth a battery is primarily about outage protection rather than rate arbitrage.
How far is Chatsworth from your Northridge shop?
About 4 miles. That is comfortably inside our core service area, so surveys and service calls are quick to schedule.
Nearby
We also serve
Ready for a Chatsworth system design?
Send us one LADWP bill. We will come back with a layout, a production model, and a real number.