Community microgrid combining concentrated solar thermal collectors with Novacab TESS thermal storage, powering data/telecom, clinic, school, grocery and water utility loads
INDUSTRY 07 · Community Microgrid — CST + TESS

Sun in.
Power out, day and night.

A compact concentrated solar thermal (CST) field directs solar heat straight into Novacab TESS. TESS stores it and discharges through an ORC turbine on demand — dispatchable, behind-the-meter power for a community microgrid, with no lithium-ion battery in the loop.

Industry 07 · Community Microgrid

A microgrid built on heat, not chemistry.

Compact linear Fresnel CST collectors heat a transfer fluid to roughly 350–400°C. That heat charges Novacab TESS through an internal Organic Rankine Cycle (ORC) loop by day; at night, or whenever the community needs it, TESS discharges through the same ORC to deliver electricity. The whole system — CST field plus TESS — fits on roughly half an acre and is designed to serve essential community loads: data/telecom, clinics, schools, grocery and water utilities.

Planning basisReference valueWhat it implies
Footprint~1/2 acre for CST field + TESS in high-DNI (direct normal irradiance) areasA small, siteable land parcel can anchor a genuine community-scale power resource.
Daily output14–20 MWh over 24 hours in high-DNI regionsEnough dispatchable energy for a cluster of essential-service buildings, not just a single site.
Storage chemistryNo lithium-ion battery required — thermal storage via SPCM (solid phase change material)Avoids battery fire risk, degradation curves and end-of-life battery disposal entirely.
Service life40–50+ years with nominal maintenanceA multi-decade asset life, not a 10–15 year battery replacement cycle.

How the day/night cycle works

PhaseWhat happensResult
CST heat collectionLinear Fresnel mirrors concentrate solar energy onto a receiver, heating transfer fluid to ~350–400°C.Free, fuel-free thermal input during daylight hours.
TESS charging (daytime)Solar heat drives the TESS charging cycle through an internal ORC module, storing thermal energy in SPCM.Energy banked for use whenever it's needed — not just when the sun is out.
TESS discharging (night & beyond)Stored heat powers the ORC as needed, delivering electricity out to the community.Dispatchable 24/7 power without a diesel genset or a battery bank.
Microgrid — first pilot

Best fit: communities, campuses or utility service areas where essential loads — data/telecom, clinic, school, grocery, water — need resilient, dispatchable power and a bypassable pilot can prove daily output, dispatch reliability and land/water use before scaling to a full microgrid buildout.

Community Microgrid CST plus TESS diagram: concentrated solar thermal field, TESS 1MW modules, daytime charging cycle, nighttime discharge, and distribution to data/telecom, clinic, school, grocery and water utility loads
The full system: a linear Fresnel CST field charges TESS by day; TESS discharges through the ORC turbine to power data/telecom, clinic, school, grocery and water-utility loads day and night.
Solar thermal · troughs, dishes + TESS

Concentrated heat, not photovoltaics.

Parabolic troughs and dish concentrators have been in commercial use since the 1980s. Either way, the mirrors focus sunlight into heat. TESS stores that heat and converts it to electricity through its ORC. TESS modules capture about 3.5 MMBtu per charge cycle and average about 10 MMBtu per day in a high-sun location. That works out to roughly 16.8 MWh of electricity every 24 hours from a single 1 MW TESS (about 700 kW, around the clock). AI controllers schedule when stored heat is released. That lets the system power loads 24×7 and, where the law allows, sell surplus power to the grid.

Concentrated solar thermal field in a high-desert setting: parabolic trough rows and solar dish concentrators feeding stacked TESS thermal storage modules, with ORC and cooling equipment alongside
Parabolic troughs and solar dishes collect heat by day; TESS modules store it and discharge through the ORC for dispatchable power. Concept illustration, not a site photograph.
Project in development · Fort Davis, Texas

A locally owned solar-thermal utility for Jeff Davis County.

The Fort Davis TESS + Solar Thermal Community Power Initiative is a proposal. It would set up a locally owned, solar-thermal power generation and storage system in partnership with Rio Grande Electric Cooperative (RGEC) and private funders. The aims are energy independence, economic development and local incentives for Jeff Davis County, Texas. A solar trough array would drive a closed-loop thermal fluid circuit that charges TESS for 24×7 dispatchable power.

Per 1 MW systemPlanning value
TechnologyRackam solar thermal concentrators + Novacab TESS (thermal energy storage & conversion)
FootprintLess than one acre
Output16.8 MWh per 24 hours · ~6,132 MWh per year
Thermal storage3.5 MMBtu per cycle · ~10 MMBtu per day
Installed cost~$3.47M including engineering, land, construction and grid interface (TESS unit ~$1.79M)
Incentives30% ITC for energy storage + 10% domestic-content bonus (≈$540K) and 80–100% accelerated depreciation (≈$400K)
Carbon offset≈2,600 tons CO₂ per year
System lifeMore than 25 years. TESS has no cycle degradation, unlike lithium storage.

Partnership pathway

PhaseWhat happensTiming
1 · FeasibilityJoint feasibility and interconnection study with RGEC≈90 days
2 · MOUMemorandum of understanding that defines the cooperative framework and power purchase terms2–3 months
3 · PilotInstall and commission 1 MW of solar thermal + TESSYear 1 · ~12 months to first power
4 · ExpansionGrow to as much as 10 MW countywide and launch an energy-credit programYears 2–5

Economic & community impact

Scaling beyond the community

For larger, utility-scale solar-thermal fields in West Texas, two things are sized separately. The mirror field is sized for annual MWh and winter sun. TESS storage is sized for the night-time hours the site must cover. Then CST + TESS is compared with PV + batteries on equal service: the same annual MWh, dependable MW, night duration and reliability. We screen every larger configuration this way before quoting output or land.

Community Microgrid CST plus TESS diagram: concentrated solar thermal field, TESS 1MW modules, and distribution to data/telecom, clinic, school, grocery and water utility
Resilient by design

Dispatchable, clean,
and built for decades.

Small footprint. No critical-minerals dependency. Minimal land and water use. A CST + TESS microgrid is engineered to keep dispatchable, 24/7 power flowing to the services a community can't do without — more on the Novacab TESS platform that makes it possible.

Before we quote anything

The data we ask for — microgrid.

We would rather send you a data request than a brochure. This is what turns a conversation into a bankable project.

Site DNI (direct normal irradiance) data; preferred concentrator type (trough, dish or Fresnel); available land and orientation; essential-load list and peak/average demand for each building; existing grid interconnection or islanding requirements; water availability; backup/black-start requirements; permitting and land-use constraints.

Validation boundary

All claims relating to site output, footprint, service life, dispatch reliability, payback, incentives and deployment economics are planning assumptions, analogues or manufacturer reference data — unless and until they are validated for your specific site through engineering, measurement, vendor quotation, financing documentation, legal review and final commercial agreements.

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