TETHYS ENERGY LTD

What TETHYS ENERGY LTD does

TETHYS ENERGY LTD is a private United Kingdom company founded in 2013 and headquartered in Reading, operating in the residential and commercial solar photovoltaic (PV) installation sector. According to its firmographic profile, the company provides end-to-end solar PV installation services alongside complementary offerings in battery storage systems, EV charger installation, and ongoing solar system maintenance and upkeep. The company's website (tethys-energy.com) was inaccessible at the time of data collection, displaying only a verification/loading page, which limits direct verification of service descriptions, project portfolios, or commercial terms.

The business model is consistent with a small-scale UK solar installation contractor: revenue is generated through project-based installation contracts for rooftop solar PV systems and ancillary equipment (battery storage, EV chargers), supplemented by recurring or ad-hoc maintenance revenue from existing installed bases. The stated dual residential and commercial orientation suggests a mixed go-to-market — leveraging local reputation and referrals for homeowner work while pursuing small-to-mid-sized commercial clients for larger contract values. With 1-10 employees as the disclosed headcount band and no external funding rounds, partnerships, or management team information in the source data, the company appears to operate as a micro-SME, likely owner-operated, with limited capital structure complexity. No certifications, awards, proprietary technology, AI capabilities, or named customers are disclosed in the available data, and the company type, operating status, and ownership structure are unverified beyond the basic firmographic record.

Name

TETHYS ENERGY LTD

Website

https://tethys-energy.com

Company type

Private

Founded year

2013

Headcount range

1–10 employees

Short description

TETHYS ENERGY LTD is a UK-based solar installation contractor in Reading, founded in 2013, serving residential and commercial customers with rooftop solar PV, battery storage, EV charger, and solar maintenance services.

Ownership category

akta.pro rank

Product category

Solar Installation Services

NAICS

Solar Electric Power Generation (221114)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Repowering, Retrofit & Life-Extension (Inverter Replacements, Tracker Upgrades, Controls) (EUACAGAJ)

Keywords

• Solar PV installation
• Battery storage systems
• EV charger installation
• Solar maintenance services
• Renewable energy installation

Headquarters

HQ city

Reading

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales

Core offering

Tethys Energy installs residential and commercial solar photovoltaic (PV) systems, battery storage solutions, and EV chargers, and provides ongoing upkeep for installed solar systems. The company delivers end-to-end deployment and maintenance services for renewable energy hardware in the United Kingdom.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Solar PV Installation Installation of rooftop solar photovoltaic (PV) systems for residential properties in the UK, enabling homeowners to generate on-site solar electricity.
• Commercial Solar PV Installation

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Recent moves3 records

Expansion highlights2 records

Others

• EDF Renewables UK: UK arm of EDF offering residential and commercial solar installation as part of a broader renewables portfolio. Larger incumbent with overlapping customer base to Tethys.

Direct peers

• Joju Solar: UK-based solar PV, battery storage and EV charger installer serving residential and commercial customers. Closely comparable to Tethys in service mix, geography and customer segments.
• Eco2Solar: UK solar PV installer focused on residential new-build and commercial rooftops. Comparable to Tethys in offering solar installation with supporting electrical and battery services.
• Ineco Energy: Smaller UK solar installer offering residential and commercial PV, battery storage and EV charger installation. Closely comparable in size and service scope to Tethys.
• Solar Fast: UK residential and commercial solar PV installer with battery storage options. Comparable to Tethys in customer type and service mix.
• Lightsource Homes: Residential solar arm of Lightsource bp, installing rooftop PV, storage and EV chargers across UK homes. Directly comparable offering to Tethys, though backed by a global utility-scale solar developer.
• Solarcentury (Statkraft): Pioneer UK solar installer now part of Statkraft, delivering residential and commercial rooftop PV, storage and EV solutions. Comparable service stack to Tethys though operating at substantially greater scale.

Broad incumbents

• Octopus Energy: UK energy retailer that has built a national solar, battery and EV installation business (Octopus Electric Vehicles, Octopus Solar). Adjacent incumbent whose scale and brand pose competitive pressure on Tethys.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks6 records

Key highlights4 records

Customer concentration

• LinkedInlinkedin.com/company/tethys-energy-ltd

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TETHYS ENERGY LTD