CASD Solar — United States of America

CASD Solar is a 1.3 MW solar power plant in Pennsylvania, United States of America. It is operated by Carlisle Area School District. Based on its capacity (estimated), it can supply roughly 553 homes (estimated). It ranks #10044 of 10,884 United States of America power plants by installed capacity. Commissioned in 2010, it is around 16 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 8.6% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057668.

Data provenance

Source of the capacity and fuel values:

capacity: Wikidata P2109; fuel: WRI GPPD

In context: how this plant compares

At 1.3 MW, CASD Solar is below the median solar plant in United States of America (3 MW). Solar PV converts sunlight directly into electricity with no moving parts or fuel; output varies by time of day and weather, so it pairs with storage or flexible backup.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Share of United States of America solar capacity

less than 0.1% of 38,093 MW across 3,283 plants in this dataset

Age among peers

56 of 3,277 dated solar plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Reported generation trend

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Carlisle Area School District.

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 40.2°N — which shapes how much energy it can produce and how its output varies through the year.

Monthly mean temperature

Heating degree-days here run 19% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 60/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 0.0% at warm-season highs here (estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #2729 largest solar power plant of 3283 in United States of America by capacity.

United States of America has 3283 solar power plants in this dataset, together about 38,093 MW of capacity.

Nearby power plants

• Dickinson Solar · Solar · 3 MW · Pennsylvania
• Vitro Architectural Glass (PA) · Oil · 5 MW · Pennsylvania
• Mountain · Oil · 54 MW · Pennsylvania
• Knouse Solar Project 1 · Solar · 3 MW · Pennsylvania
• TalenEnergy Martins Creek LLC West Shore · Oil · 37 MW · Pennsylvania
• Cumberland County PA LFG Recovery · Waste · 6.4 MW · Pennsylvania

Location

Coordinates 40.2142, -77.2061 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions